八下选择题专练

合集下载

八下《蒹葭》选择题专练-冲刺2024年中考语文古代诗歌课内篇目常考题型专练

八下《蒹葭》选择题专练-冲刺2024年中考语文古代诗歌课内篇目常考题型专练

八下《蒹葭》选择题专练-冲刺2024年中考语文古代诗歌课内篇目常考题型专练蒹葭《诗经·秦风》原文译文鉴赏蒹葭苍苍,白露为霜。

所谓伊人,在水一方。

溯洄从之,道阻且长。

溯游从之,宛在水中央。

河边芦苇青苍茂盛,秋深露水结成霜。

我心中所爱的人啊,就在水的另一边。

逆流而上去追寻,道路艰险又漫长。

顺流而下去寻找,好像在水的中央。

内容:以蒹葭起兴。

前两句点明时间、环境,展现了一幅萧瑟冷落的秋景图,给全诗笼罩上了一层凄清落寞的气氛。

三、四句点明主题,写主人公思见心切,望穿秋水。

五、六句写逆流追寻时的困境。

七、八句描绘顺流追寻时的幻象。

由此,主人公思见伊人而不得见的如痴如醉的形象跃然纸上。

蒹葭萋萋,白露未晞。

所谓伊人,在水之湄。

溯洄从之,道阻且跻。

溯游从之,宛在水中坻。

河边芦苇青苍茂盛,清晨露水未曾干。

我心中所爱的人啊,就在水与草相接的岸边。

逆流而上去追寻,道路又险又高。

顺流而下去寻找,仿佛就在水中高地上。

内容:描述了主人公追寻之路困难重重,刻画出主人公焦急而痴迷的情状。

“苍苍”“萋萋”“采采”写出芦苇的颜色由苍青至萋青到泛白,把深秋凄凉的气氛渲染得越来越浓,烘托出环境的清冷和主人公心境的寂寞。

“为霜”“未晞”“未已”的变化,暗示了时光的流逝和追求者的深情执着;从上游到下游,从此岸到彼岸,地点的变化,写出了主人公不畏险阻地一再追寻、几度求索,也暗示了“伊人”的踪迹飘忽不定,难以寻觅。

表现形式:采用重章叠句的形式,每章都是前两句写景,三、四句点明主题——追寻“在水一方”的“伊人”,五至八句描绘追寻的情状。

这不仅使诗歌有一唱三叹、回环往复的美感,还起到了深化诗歌意境的作用。

蒹葭采采,白露未已。

所谓伊人,在水之涘。

溯洄从之,道阻且右。

溯游从之,宛在水中沚。

河边芦苇茂盛鲜明,清晨露水还没有干。

我心中所爱的人啊,就在水边。

逆流而上去追寻,道路艰险又向右迂曲。

顺流而下去寻找,好像就在水中的小块陆地上。

【主旨:这是一首抒情诗,含蓄委婉地抒发了主人公对“伊人”可望而不可即的无限情意,全诗充满难言的惆怅与伤感。

八下《石壕吏》选择题专练-2024中考冲刺古诗专项复习

八下《石壕吏》选择题专练-2024中考冲刺古诗专项复习

八下《石壕吏》选择题专练——2024中考冲刺古诗专项复习原文参考译文赏析与理解暮投石壕村,有吏夜捉人。

老翁逾墙走,老妇出门看。

傍晚(我)投宿在石壕村,有差役在夜间抓人。

(这家的)老汉翻墙逃走,老妇出门去察看。

内容:写差役乘夜捉人——故事的开端。

“暮投石壕村”点明了投宿的时间和地点。

“有吏夜捉人”暗示这是一个兵荒马乱的时代,为悲剧的发生提供了典型环境。

“捉人”是全篇的提纲,揭露了兵役制度的黑暗,批判了封建统治者的残暴,表现了作者对劳动人民的深切同情。

“逾墙走”写出了百姓恐慌逃走的景象,从侧面反映了战事的紧迫和人民的惊恐不安。

炼字:①“夜”字烘托了一种阴暗、凄惨的悲剧气氛,表明差役“捉人”的手段狠毒,在夜间突然袭击。

②“捉”表现差役的霸道、凶残,于如实描绘中寄寓揭露、批判之意。

“捉”字既隐含了百姓的抵触,又隐含了差役的凶暴。

③“走”和“看”,表现人们长期以来深受抓丁之苦,昼夜难安的生活现状。

吏呼一何怒!妇啼一何苦!差役吼得多么凶狠!老妇哭得多么悲苦!写法:①对比。

“呼”与“啼”,“怒”与“苦”,对比鲜明,分别从正面和侧面揭露了差役的凶狠残暴,百姓的痛苦不㙋,形象地写出了“吏”与“妇”的尖锐矛盾。

“苦”是全诗的诗眼。

②反复。

两个“一何”,运用反复手法,加重感情色彩,渲染出差役的凶狠蛮横和老妇的哀苦可怜,并为下面老妇的诉说营造出悲愤的气氛。

听妇前致词:三男邺城戍。

一男附书至,二男新战死。

存者且偷生,死者长已矣!室中更无人,惟有乳下孙。

有孙母未去,出入无完裙。

老妪力虽衰,请从吏夜归,只听老妇走上前(对差役)说:(我)三个儿子在邺城防守。

一个儿子捎信回来,说(另外)两个儿子最近战死了。

活着的人暂时苟且活着,死去的人生命就永远结束了!家里再没有别的(男)人了,只有还在吃奶的孙子。

(因为)有孙子在,(所以)他的母亲还没有离去,(但)出内容:主体部分是老妇人的“致词”——故事的发展和高潮。

“致词”的内容可分为三层:第一层(“致词”前五句)诉说三个儿子全都应征赴邺城作战,已有两个战死沙场,说明这一家人已经为国家做出了重大牺牲。

八下《卖炭翁》选择题专练-冲刺2024年中考语文古代诗歌课内篇目常考题型专练

八下《卖炭翁》选择题专练-冲刺2024年中考语文古代诗歌课内篇目常考题型专练

八下《卖炭翁》选择题专练-冲刺2024年中考语文古代诗歌课内篇目常考题型专练卖炭翁唐·白居易原文译文鉴赏卖炭翁,伐薪烧炭南山中。

满面尘灰烟火色,两鬓苍苍十指黑。

有位卖炭的老翁,整年在终南山里砍木柴烧炭。

他满脸灰尘,显出被烟熏火燎的颜色,两鬓头发灰白,十指漆黑。

内容:概括交代人物的基本情况,写卖炭翁的炭来之不易。

“伐薪”“烧炭”,概括了复杂的工序和漫长的艰苦劳动过程。

后两句仅用十四个字就活画出一个长期遭受烟熏火燎、疲惫憔悴的老翁形象。

手法:运用衬托手法,对卖炭翁的肖像做精练传神的描绘,写“两鬓”可见其苍老,写面庞、“十指”可见其生活之艰辛。

卖炭得钱何所营?身上衣裳口中食。

可怜身上衣正单,心忧炭贱愿天寒。

卖炭得到的钱做什么用?买身上穿的衣裳和嘴里吃的食物。

可怜他身上只穿着单薄的衣服,心里却担心炭卖不出去,还希望天气更寒冷。

内容:一问一答,将老翁的命运与他所烧所卖的炭紧紧联系在一起,通过愿望的卑微表现老翁生活的贫困。

炼字:诗人先用“可怜”二字倾注无限同情,继以一“忧”一“愿”来写卖炭翁的悲惨境遇和矛盾的心理活动。

描写方法:“可怜”两句运用心理描写的方法,身上衣单与“愿天寒”形成不合情理的鲜明对比,“心忧炭贱”又使之完全可以理解,生动地表现了这炭是老翁的全部生活依托。

夜来城外一尺雪,晓驾炭车辗冰辙。

牛困人饥日已高,市南门外泥中歇。

夜里城外下了一尺厚的大雪,清晨,老翁驾着炭车碾轧冰冻的车轮印往集市上赶去。

牛累了,人饿了,但太阳已经升得很高了,他们就在集市南门外的泥泞中歇息。

内容、手法:写老翁赶车卖炭的情景。

“一尺雪”与上文“衣正单”形成对比,突出老翁生活的艰难。

炼字:“辗”字借天寒地冻的天气状况,突出说明了卖炭翁的辛苦,又写出了牛车的重量,从侧面表现了卖炭翁早起驾车、踏雪碾冰的艰辛。

“牛困人饥”说明南山到长安城路途遥远,“泥中歇”写出老翁精疲力竭的情态。

翩翩两骑来是谁?黄衣使者白衫儿。

手把文书口称敕,回车叱牛牵向北。

部编八年级下册课内阅读题型专练名著阅读《钢铁是怎样炼成》9名著复习

部编八年级下册课内阅读题型专练名著阅读《钢铁是怎样炼成》9名著复习

部编八年级下册课内阅读题型专练名著阅读《钢铁是怎样炼成》9名著复习一、选择题1.请从下面《钢铁是怎样炼成的》选段中选取任何一点或者一处,做不少于50字的批注。

当他躺在手术台上,手术刀割开他的颈子,切除一侧的副甲状腺时,死神的黑色翅膀曾经三次触及到他。

然而保尔的生命力非常顽强。

达雅焦急不安地守候在外面,几个小时以后,她看见丈夫的脸色像死人般苍白,但仍然很有生气,而且像往常一样平静温存:“好姑娘,你别担心,我可不会这么容易就进棺材的。

我还要活下去,哪怕有意跟那些医学权威的预言捣捣蛋也好嘛。

他们对我病情的诊断完全正确,但是写个证明,说我百分之百失去了劳动能力,那就大错特错了。

我们走着瞧吧!”2.王保同学分享了名著中的故事片段,并做了相应的批注,请你将批注中的空缺处补充完整。

3.名著阅读填空。

伤口很深,颅骨被打穿,头部右侧麻痹。

右眼出血,眼睛肿胀。

阿纳托利∙斯捷潘诺维奇打算摘除他的右眼,以免发炎,不过我劝他,只要还有希望消肿,就先不要做这个手术。

他同意了。

我的主张完全是从审美观点出发的。

如果这个年轻人能活过来,为什么要摘除一只眼睛,让他破相呢?他一直说胡话,折腾得很厉害,身边必须经常有人护理。

我在他身上花了很多时间。

他这样年轻,我很可怜他。

只要力所能及,我一定要把他从死神手里夺过来。

昨天下班后,我在病房里又呆了几个小时。

他的伤势最重。

我注意听他在昏迷中说些什么。

有时候他说胡话就像讲故事一样。

我从中知道了他生活中的许多事情。

阿纳托利∙斯捷潘诺维奇说他救不活了。

这老头生气地咕哝说:“我真不懂,他差不多还是一个孩子,部队怎么能收他呢?真是岂有此理。

”选段选自名著《__________》,文中的“他”是__________。

4.请运用所积累的知识,完成各题。

他像醉鬼一样东摇西晃,双腿打颤,走向车站。

他发着高烧上工已经很久了,不过他觉得今天烧得比往常历害。

吞噬..生命、削弱全队战斗力的伤寒也向(A)进攻了。

但他那健壮的身体在抵抗着,接连五天,他都打起精神从铺着干草的水泥地上爬起来,和大家一起去上工。

八年级下册期末考试选择题专练(四)

八年级下册期末考试选择题专练(四)
A.此期间油菜等农作物的光合作用受到影响,生长缓慢
B.冬季大棚由于空气湿度大,缺乏光照,易滋生病害
C.持续低温阴雨天气是长期受到高气压作用的结果
D.长期降雨,道路湿滑,车辆受到摩擦力小,易造成交通事故
9.镁在空气中燃烧时,发生如下两个反应:3Mg+N2 Mg3N2;2Mg+O2 ==2MgO,已知24g镁在纯氧中完全燃烧可得40g产物,那么24g镁在空气中燃烧所得产物的质量()
96℃+2℃=98℃
即当温度达到98℃时左侧控制电路接通,电磁铁具有磁性,吸引衔铁,使右侧电路接通,电铃发声报警,故B正确;
C.图中左侧是水银温度计,利用了水银热胀冷缩的性质,故C正确;
D.由图知道,电流从电磁铁的左端流入、右端流出,根据安培定则可知,报警时电磁铁的右端是N极,左端是S极,故D错误。
B.1个维生素分子由6个碳原子,8个氢原子,6个氧原子构成
C.维生素C的相对分子质量为176
D.维生素C中氢元素的质量分数为4,5%
16.德国化学家洛哈德•埃特尔在固体表面化学的研究中取得了非凡的成就,其成果之一是揭示了氮气与氢气在催化剂表面合成氨的反应过程(下图所示〕.如图所示微观变化与下列对应叙述正确的是( )
A.提供热能 B.作反应物C.作催化剂 D.形成白雾
18.有些年轻人喜欢染发,染发时一般要用到一种着色剂——对苯二胺,它是一种有毒的化学药品,有致癌性,会对染发者的身体带来伤害,其分子结构如图所示。下列有关对苯二胺的说法不正确的是()
A.对苯二胺的化学式为C6H8N2
B.对苯二胺的相对分子质量(式量)为108
D、奥司他韦是一种特效药,不能多吃,故D不正确。故选B。
5.D
【解析】
【分析】

人教版八年级下册英语 Unit 8 选择题专项练习题100题(含答案)

人教版八年级下册英语 Unit 8 选择题专项练习题100题(含答案)

人教版八年级下册英语 Unit 8选择题专项练习题100题( )1.— Has Lucy ever been to Beijing?— No, .A. she hasB. she isn’tC. she hasn’tD. she didn’t( ) 2. Our life is becoming easier because of the high ____.A. skillB. treasureC. gunD. technology( ) 3. If we work hard, our future will be hope.A. because ofB. full ofC. instead ofD. proud of( ) 4.— What happened at the end of the story?— A policeman shot and killed the dangerous animal with his .A. gunB. treasureC. knifeD. stick( ) 5. Sally haven’t finished her homework. she didn’t writea word at all.A. SuddenlyB. HardlyC. ActuallyD. Truly( ) 6.Frank is a creative boy. He had a great in yesterday’s speech competition.A. succeedB. successC. successfulD. successes( ) 7. He has never been to Shanghai, ______?A. doesn’t he B. is he C. has he D. hasn’t he( )8.— has he stayed in that mountain?— For a week.A. How oftenB. How soonC. How longD. How many( ) 9. ! The train is coming!A. Wake upB. Get upC. Turn upD. Hurry up ( )10.I have read Robinson Crusoe______, but I haven’t read Tom Sawyer______.A. already; alreadyB. yet; yetC. yet; alreadyD. already; yet ( )11.Alan was born in America, but he_____in England.A. went backB. grew upC. picked upD. turned down( )12.The movie is so interesting that people have seen it in the past few days.A. two millionB. two millionsC. two million ofD. two millions of( )13.— Harry Potter is very interesting and it is one of the most popular books in the world.— And I don’t know why so many people are interested in it.A. That sounds great.B. I can believe that.C. I just don’t like it.D. It is not true.( )14.Both his parents look sad . Maybe they what happened to him.A. knew B. have known C. must know D.will know( )15.He has _____ been to Shanghai, has he ?A.already B.never C.ever D. still( )16. Have you met Mr. Li _____?A. just B. ago C.before D. a moment ago( )17.—Our country ______ a lot so far .—Yes . I hope it will be even ______.A. has changed; well B. changed; goodC. has changed; better D. changed; better( )18.Zhaolan ____already ____in this school for two years.A. was; studying B. will; studyC. has; studied D. are; studying( )19.—____ you your homework yet ?—Yes, I _____ it a moment ago.A. Did; do; finished B. Have; done; finishedC. Have; done; have finished D. will; do; finish( )20.His father _____ the Party since 1978.A. joined B. has joined C. was in D. has been in ( ) 21.—Do you know him well ?—Sure .We _____ friends since ten years ago .A. were B. have been C. have become D. have made( )22.—How long have you ____ here ?—About two months .A. been B. gone C. come D. arrived( )23.Hurry up! The play ______ for ten minutes .A. has begun B. had begun C. has been on D. began( )24.It ten years since he left the army .A.is B. has C. will D. was( )25.Yesterday I talked to Amy on the phone and she ______ happy.A. lookedB. soundedC. smelledD. tasted( )26.The little boy often makes his mother _____him _____.A. talk; something interestingB. tell; something interestingC. say; interesting somethingD. speak; interesting something ( )27.—Would you like somewhere_______?—No, thanks. I have a big room ______.A. live; liveB. to live, to liveC. living; to liveD. to live; to live in( )28.The eggs will go bad soon in such hot weather _____ they are put in the fridge.A. althoughB. becauseC. unlessD. until( )29.—When did the old man die?—In 2004. He _______ for nearly ten years.A. diedB. has diedC. is deadD. has been dead( )30.—Everyone should learn to say “I love you” to their parents often.—I agree. _______ else in life is more important than family.A. SomethingB. EverythingC. AnythingD. Nothing( )31.Teachers will hardly use chalk in the future, ______?A. will heB. won’t heC. will theyD. won’t they( )32. Our school is having a sports meeting. Someone ____ here already.A. arrivedB. have arrivedC. has arrivedD. arrives( )33. — you the movie Gongfu Panda II?—Not yet. I’ll see it this Sunday.A. Did,;seeB. Do; seeC. Have; seenD. Do; saw( )34. —I’d like to introduce my best friend to you, Peter.— Thank you, Lucy. But we _______ already.A. meetB. metC. will meetD. have met( )35.—Kitty, will you go to see the film Cold Mountain this evening?—No, I won’t. I ____ it already.A. sawB. have seenC. seeD. will see( )36. — China develops so fast.—That’s true. It _____ a lot already.A. changesB. changedC. will changeD. has changed ( )37. Julia isn’t going to the cinema with us because she ______ the film.A. seesB. sawC. will seeD. has seen( )38--The box is too heavy to carry. What’s in it ?--Oh, it is _______books.A. filled withB. covered withC. used forD. asked for( )39. ______Your telephone number on the paper and you can get a magazine.A. cut downB. look downC. put upD. put down( )40--Which of the two T-shirts would you like to choose?-Both. Then I can give one to my brother and leave_____ to myself. ` A. another B. the other C. other D. others( )41.The meeting has already on for about ten minutes, but Henry ______yet. He must have something important to do.A. hasn’t appearedB. has comeC. hasn’t spokenD. has lost( )42.Hurry up! The movie will begin____ 10 minutes.A. overB. inC. forD. at( )43.Jim likes China very much. He can’t wait to ____China.A. comingB. cameC. comesD. come to( )44.The librarian _____books ____ students.A .borrows; from B. lends; to C. returns; to D. sells; to( )45. I _____ my lost wallet everywhere but I couldn’t ______ it.A. looked for; findB. looked for, findingC. have found; lookD. have found; looking( )46. Amy ______ the windows already, so the room looks much brighter.A. cleansB. cleanedC. is cleaningD. has cleaned( )47.You ______ buy the TV guide for next week. I have already boughta copy.A. mustn’tB. needn’t toC. don’t have toD. can’t( )48. When we got to the bus stop, the bus______ for about half an hour.A.has leftB. had leftC. has been awayD. had been away( )49. — How long have you been a league member?—___________.A. A long time agoB. Since two yearsC. For about a yearD. In 2006( )50.The parents encouraged their daughter ______ EnglishA. improvingB. to improveC. improvedD. improves( )51.What are you listening _____?A. toB. atC. forD. in( )52.The song ____really good.A. soundsB. soundC. is soundD. to sound( )53.I am listening to a band “the Toms”.A. is callingB. callsC. calledD. calling( )54.Have you _____of them yet?A. heardB. hearC. hearsD. hearing( )55.They _____two CDs already.A. makeB. have madeC. madeD. making( )56.They are all_____ boys.A. teenageB. teenagerC. teenagersD. teenaged( )57.Their music can wake me_____ and make me happy_____ the rest of the day.A. up; forB. up; atC. at; forD. at; up( )58.She used to_____ in the countryside .Now he is used to_____ in the city.A. live;livingB. live;liveC. live;livedD. living;living( )59.He was studying ___and he was a foreign student.A. broadB. abroadC. aboardD. board( )60.She heard a song full of feelings _____ returning home_____ the radio.A. about;onB. of;atC. at;ofD. of;of( )61.She came to_____ how much she missed all of them.A. realizeB. knowC. seeD. hear( )62.Ever since then, she_____ a fun of country music.A. has beenB. have beenC. have hadD. has become( )63.The kind of music is not about the importance_____ money and success.A. aboutB. forC. atD. of( )64.She_____ to that place yet.A. has beenB. has not beenC. have goneD. has gone( )65.He has done some research_____ it.A. onB. forC. atD. of( )66.She is one of ______.A. the most successful musiciansB. more successful musiciansC. the most successful musicianD. more successful musicians ( )67.I hope _____see the famous singer.A. to seeB. seeC. seeingD. to seeing( )68.The singer will sing_____ at his concert.A. aliveB. liveC. livingD. lived( )69.What do you think_____ this dress?A. ofB. atC. forD. with( )70.I asked my son to _____ the spoon and wash his hands.A. put downB. put upC. put awayD. put on( )71.She _____ in a small town.A. grew upB. grow upC. grow atD. grew( )72. At the end of the day, the bus brought us ____ home.A. toB. backC. atD. for( )73.I_____ the book club last week and I _____three books already.A. joined; have readB. joined; readC. has joined; readD. joined;reading( )74.I_____ many songs, but I can’t_____ any of them.A. have listened to;singB. listen; singC. listen; singedD. listened;sings( )75.The man tried several times, and he succeeded _______.A. in the pastB. in the endC. at firstD. at once( )76.Diaoyu Islands ______ China ever since ancient times.A. belong toB. belong withC. belong underD. belong at ( )77.The good news made us _____ happy.A. feelB. feelingC. feelsD. to feel( )78.It is a good way _____ your spoken English.A. practiceB. to practiceC. practicingD. practiced( )79._______ tourists come here now.A. Millions ofB. Million ofC. a million ofD. Million ( )80.Please open the book and read the third _____.A. lineB. blockC. rowD. way( )81.I want to introduce you _____my friends.A. toB. withC. atD. for( )82.--I have got a new mobile phone.--Where ___ you ____ it?A did; buy B. have; bought C. were;buying D. are; buying ( )83.Mr Wang isn’t here. He _____ the office.A. has been toB. has gone toC. has been awayD. has left ( )84.--_____ you ever _____ to Singapore?--Yes, I _____ there last year.A. have been; wentB. have gone;goC. have been; goD. went;go ( )85.He has never been to Beijing,______?A. does heB. has heC. is heD. hasn’t he( )86.A number of students ____ planting trees in the field.The number of students in the class ____ about 60.A. are;isB. is ;isC. are;areD. is;are( )87.I can’t decide ______ now.A. to buy which oneB. buy which oneC. which one to buyD. which I should buy it( )88.It is a good film. I ______ it twice.A. sawB. have seenC. seeD. seed( )89.Tony ran fast ______ he could catch the rabbit.A. so thatB. so evenC. veryD. for( )90.We are good friends and we like helping ______.A. one anotherB. each otherC. the otherD. A and B( )91.The actress is very ______ and many people are interested in her _____.A. beautiful;beautyB. beauty;beautyC. beautiful;beautifulD. beauty;beautiful( )92.He is now a______ businessman, but his _____ didn’t come easily. A. success;success B. successful;successC. success;succeedD. succeed;success( )93.The young singer’s songs are with _______ style.A. the most modernB. modernistC. modernD. most modern ( )94.The summer vacation is coming. I can’t wait _______ my holiday.A. to enjoyB. enjoyingC. enjoyedD. have enjoyed( )95.I hope to go to Hainan _______.A. some dayB. some daysC. daysD. everyday( )96.The library ____ books _____ students.A. borrows;toB. lend toC. turn toD. lend from( )97.-- How long have been a teacher?--________.A. For two yearsB. Since two yearsC. two yearsD. In 2016 ( )98.You should encourage your son _______ by himself.A. to readB. readingC. readD. to reading( )99.I only _____ taking French classes last week and I _____ a lot of words already.A. started;have learnedB. started;learnedC. starting;learnD. have started;learned( )100._____ the end of the day, we eventually finished our work. A. At B. For C. On D. In答案:1-5 CDBAC 6-10 BCCDD 11-15 BACBB 16-20 CCCBD21-25 BACAB 26-30BBCDD 31-35 CCCDB 36-40 DDADB41-45 ABDBA 46-50 DCCCB51-55 AACAB 56-60 AAABA 61-65 AADBA 66-70 AABAA71-75 ABAAB 76.80 AABAA 81-85 AABAB 86-90 ACBAD91-95 ABAAA 96-100 BAAAA。

2020-2021学年初中数学八年级下学期期末常考题(选择题30题)

2020-2021学年初中数学八年级下学期期末常考题(选择题30题)

2020-2021学年初中数学八年级下学期期末常考题(选择题30题)一.选择题(共30小题)1.8的立方根是()A.3B.±3C.2D.±22.在﹣3.5,,0,,﹣,﹣3,0.5151151115…(相邻两个5之间依次多一个1)中,无理数有()A.1个B.2个C.3个D.4个3.已知(x+a)(x+b)=x2﹣13x+36,则a+b=()A.﹣5B.5C.﹣13D.﹣13或54.一块正方形的瓷砖边长为cm,它的边长大约在()A.4cm﹣5cm之间B.5cm﹣6cm之间C.6cm﹣7cm之间D.7cm﹣8cm之间5.下面是某同学在一次测验中的计算摘录,其中正确的个数有()①3x3•(﹣2x2)=﹣6x5;②4a3b÷(﹣2a2b)=﹣2a;③(a3)2=a5;④(﹣a)3÷(﹣a)=﹣a2.A.1个B.2个C.3个D.4个6.若2x=3,8y=6,则2x﹣3y的值为()A.B.﹣2C.D.7.16的平方根是()A.4B.±4C.﹣4D.±88.若m=﹣4,则估计m的值所在的范围是()A.1<m<2B.2<m<3C.3<m<4D.4<m<59.下列说法不正确的是()A.的平方根是B.﹣9是81的一个平方根C.0.2的算术平方根是0.04D.﹣27的立方根是﹣310.已知实数a、b在数轴上对应的点如图所示,则下列式子正确的是()A.ab>0B.a+b<0C.|a|<|b|D.a﹣b>011.﹣3的绝对值是()A.3B.﹣3C.D.12.下列运算正确的是()A.x6÷x2=x3B.(3x)2=3x2C.(x2)3=x5D.x2•x3=x513.估计65的立方根大小在()A.8与9之间B.3与4之间C.4与5之间D.5与6之间14.在3.14,,﹣,,π这几个数中,无理数有()A.1个B.2个C.3个D.4个15.有一个数轴转换器,原理如图所示,则当输入的x为64时,输出的y是()A.8B.C.D.1816.不等式1﹣x<3的解集为()A.x>﹣2B.x<﹣2C.x<2D.x>217.已知a<b,下列不等式中错误的是()A.a+z<b+z B.﹣4a>﹣4b C.2a<2b D.a﹣c>b﹣c 18.在一次“疫情防护”知识竞赛中,竞赛题共25道,选对得4分,不选或选错扣2分,得分不低于60分得奖,那么得奖至少应选对的题数是()A.18B.19C.20D.2119.已知关于x的不等式组整数解有4个,则b的取值范围是()A.7≤b<8B.7≤b≤8C.8≤b<9D.8≤b≤920.如果x>y,则下列变形中正确的是()A.﹣x y B.y C.3x>5y D.x﹣3>y﹣3 21.小明将含30°的三角板和一把直尺如图放置,测得∠1=25°,则∠2的度数是()A.25°B.30°C.35°D.40°22.下列图形中线段PQ的长度表示点P到直线a的距离的是()A.B.C.D.23.如图,∠1和∠2是直线____和直线____被直线____所截得到的____.应选()A.a,b,c,同旁内角B.a,c,b,同位角C.a,b,c,同位角D.c,b,a,同位角24.如图,给出了过直线外一点作已知直线的平行线的方法,其依据是()A.同位角相等,两直线平行B.内错角相等,两直线平行C.同旁内角互补,两直线平行D.两直线平行,同位角相等25.下列语句是命题的是()(1)两点之间,线段最短(2)如果两个角的和是90度,那么这两个角互余(3)如果x2>0,那么x>0吗?(4)过直线外一点作已知直线的垂线A.(1)(2)B.(3)(4)C.(1)(3)D.(2)(4)26.直线AB、CD、EF相交于O,则∠1+∠2+∠3=()A.90°B.120°C.180°D.140°27.如图,直线a∥b,将一块含30°角(∠BAC=30°)的直角三角尺按图中方式放置,其中A和C两点分别落在直线a和b上.若∠1=20°,则∠2的度数为()A.20°B.30°C.40°D.50°28.在下列四项调查中,方式正确的是()A.了解本市中学生每天学习所用的时间,采用全面调查的方式B.为保证运载火箭的成功发射,对其所有的零部件采用抽样调查的方式C.了解某市每天的流动人口数,采用全面调查的方式D.了解全市中学生的视力情况,采用抽样调查的方式29.为了了解2019年我校560名七年级学生期末考试的数学成绩,从中随机抽取了200名学生的数学成绩进行分析,下列说法正确的是()A.2019年我校七年级学生是总体B.样本容量是560C.60名七年级学生是总体的一个样本D.每一名七年级学生的数学成绩是个体30.点M(3,﹣1)经过平移到达点N,N的坐标为(2,1),那么平移方式是()A.先向左平移1个单位,再向下平移2个单位B.先向右平移1个单位,再向下平移2个单位C.先向左平移1个单位,再向上平移2个单位D.先向右平移1个单位,再向上平移2个单位2020-2021学年初中数学八年级下学期期末常考题(选择题30题)参考答案与试题解析一.选择题(共30小题)1.8的立方根是()A.3B.±3C.2D.±2【分析】直接根据立方根的定义求解.【解答】解:8的立方根为2.故选:C.【点评】本题考查了立方根:若一个数的立方等于a,那么这个数叫a的立方根,记作.2.在﹣3.5,,0,,﹣,﹣3,0.5151151115…(相邻两个5之间依次多一个1)中,无理数有()A.1个B.2个C.3个D.4个【分析】无理数就是无限不循环小数.理解无理数的概念,一定要同时理解有理数的概念,有理数是整数与分数的统称.即有限小数和无限循环小数是有理数,而无限不循环小数是无理数.由此即可判定选择项.【解答】解:﹣3.5是有限小数,属于有理数;是分数,属于有理数;0是整数,属于有理数;,是有限小数,属于有理数;无理数有,,0.5151151115…(相邻两个5之间依次多一个1)共3个.故选:C.【点评】此题主要考查了无理数的定义,其中初中范围内学习的无理数有:π,2π等;开方开不尽的数;以及像0.1010010001…,等有这样规律的数.3.已知(x+a)(x+b)=x2﹣13x+36,则a+b=()A.﹣5B.5C.﹣13D.﹣13或5【分析】直接利用多项式乘法去括号,进而合并同类项求出答案.【解答】解:∵(x+a)(x+b)=x2﹣13x+36,∴x2+(a+b)x+ab=x2﹣13x+36,∴a+b=﹣13.故选:C.【点评】此题主要考查了多项式乘以多项式,正确掌握运算法则是解题关键.4.一块正方形的瓷砖边长为cm,它的边长大约在()A.4cm﹣5cm之间B.5cm﹣6cm之间C.6cm﹣7cm之间D.7cm﹣8cm之间【分析】利用算术平方根的性质进行估算即可.【解答】解:∵49<55<64,∴7<8,故选:D.【点评】本题主要考查了估算无理数的大小,利用算术平方根的性质估算是解答此题的关键.5.下面是某同学在一次测验中的计算摘录,其中正确的个数有()①3x3•(﹣2x2)=﹣6x5;②4a3b÷(﹣2a2b)=﹣2a;③(a3)2=a5;④(﹣a)3÷(﹣a)=﹣a2.A.1个B.2个C.3个D.4个【分析】计算出各个小题中式子的正确结果,然后对照即可得到哪个选项是正确的.【解答】解:∵3x3•(﹣2x2)=﹣6x5,故①正确;∵4a3b÷(﹣2a2b)=﹣2a,故②正确;∵(a3)2=a6,故③错误;∵(﹣a)3÷(﹣a)=a2,故④错误;故选:B.【点评】本题考查整式的混合运算,解题的关键是明确整式的混合运算的计算方法.6.若2x=3,8y=6,则2x﹣3y的值为()A.B.﹣2C.D.【分析】利用同底数幂的除法法则进行计算即可.【解答】解:∵8y=6,∴23y=6,∵2x=3,∴2x﹣3y=2x÷23y=3÷6=,故选:A.【点评】此题主要考查了同底数幂的除法,关键是掌握a m÷a n=a m﹣n(a≠0,m,n是正整数,m>n).7.16的平方根是()A.4B.±4C.﹣4D.±8【分析】根据平方根的定义,求数a的平方根,也就是求一个数x,使得x2=a,则x就是a的一个平方根.【解答】解:∵(±4)2=16,∴16的平方根是±4.故选:B.【点评】本题主要考查了平方根的定义.注意一个正数有两个平方根,它们互为相反数,0的平方根是0,负数没有平方根.8.若m=﹣4,则估计m的值所在的范围是()A.1<m<2B.2<m<3C.3<m<4D.4<m<5【分析】应先找到所求的无理数在哪两个和它接近的整数之间,然后判断出所求的无理数的范围即可求解.【解答】解:∵36<40<49,∴6<<7,∴2<﹣4<3.故选:B.【点评】此题主要考查了无理数的估算能力,现实生活中经常需要估算,估算应是我们具备的数学能力,“夹逼法”是估算的一般方法,也是常用方法.9.下列说法不正确的是()A.的平方根是B.﹣9是81的一个平方根C.0.2的算术平方根是0.04D.﹣27的立方根是﹣3【分析】根据平方根的意义,可判断A、B,根据算术平方根的意义.可判断C,根据立方根的意义,可判断D.【解答】解:A、,故A选项正确;B、=﹣9,故B选项正确;C、=0.2,故C选项错误;D、=﹣3,故D选项正确;故选:C.【点评】本题考查了立方根,平方运算是求平方根的关键,立方运算是解立方根的关键.10.已知实数a、b在数轴上对应的点如图所示,则下列式子正确的是()A.ab>0B.a+b<0C.|a|<|b|D.a﹣b>0【分析】根据数轴上点的位置关系,可得a,b的大小,根据有理数的运算,可得答案.【解答】解:b<0<a,|b|<|a|.A、ab<0,故A不符合题意;B、a+b>0,故B不符合题意;C、|b|<|a|,故C不符合题意;D、a﹣b>0,故D符合题意;故选:D.【点评】本题考查了实数与数轴,利用有理数的运算是解题关键.11.﹣3的绝对值是()A.3B.﹣3C.D.【分析】根据一个负数的绝对值等于它的相反数得出.【解答】解:|﹣3|=﹣(﹣3)=3.故选:A.【点评】考查绝对值的概念和求法.绝对值规律总结:一个正数的绝对值是它本身;一个负数的绝对值是它的相反数;0的绝对值是0.12.下列运算正确的是()A.x6÷x2=x3B.(3x)2=3x2C.(x2)3=x5D.x2•x3=x5【分析】根据同底数幂的除法法则:底数不变,指数相减,及同底数幂的乘法以及幂的乘方与积的乘方法则进行运算,然后即可作出判断.【解答】解:A、x6÷x2=x4,故本选项错误;B、(3x)2=9x2,故本选项错误;C、(x2)3=x6,故本选项错误;D、x2•x3=x5,故本选项正确.故选:D.【点评】本题考查同底数幂的除法、同底数幂的乘法及幂的乘方与积的乘方的知识,其中幂的乘方是易混淆知识点,一定要记准法则才能做题.13.估计65的立方根大小在()A.8与9之间B.3与4之间C.4与5之间D.5与6之间【分析】由<<求解可得.【解答】解:∵<<,∴4<<5,∴估计65的立方根大小在4与5之间,故选:C.【点评】本题主要考查估算无理数的大小,解题的关键是掌握估算无理数大小的思维方法:用有理数逼近无理数,求无理数的近似值.14.在3.14,,﹣,,π这几个数中,无理数有()A.1个B.2个C.3个D.4个【分析】根据无理数是无限不循环小数,可得答案.【解答】解:=3,﹣,π是无理数,共有2个,故选:B.【点评】此题主要考查了无理数.解题的关键是掌握无理数的定义,明确初中范围内学习的无理数有:π,2π等;开方开不尽的数;以及像0.1010010001…,等有这样规律的数.15.有一个数轴转换器,原理如图所示,则当输入的x为64时,输出的y是()A.8B.C.D.18【分析】根据算术平方根,即可解答.【解答】解:64的算术平方根是8,8的算术平方根是.故选:B.【点评】本题考查了算术平方根,解决本题的根据是熟记算术平方根的定义.16.不等式1﹣x<3的解集为()A.x>﹣2B.x<﹣2C.x<2D.x>2【分析】不等式移项合并,把x系数化为1,即可求出解集.【解答】解:不等式整理得:﹣x<2,解得:x>﹣2,故选:A.【点评】此题考查了解一元一次不等式,熟练掌握运算法则是解本题的关键.17.已知a<b,下列不等式中错误的是()A.a+z<b+z B.﹣4a>﹣4b C.2a<2b D.a﹣c>b﹣c 【分析】根据不等式的性质逐个判断即可.【解答】解:A、∵a<b,∴a+z<b+z,故本选项不符合题意;B、∵a<b,∴﹣4a>﹣4b,故本选项不符合题意;C、∵a<b,∴2a<2b,故本选项不符合题意;D、∵a<b,∴a﹣c<b﹣c,故本选项符合题意;故选:D.【点评】本题考查了不等式的性质,能熟记不等式的性质是解此题的关键,注意:不等式的性质有:①不等式的两边都加或减同一个数或式子,不等号的方向不变,②不等式的两边都乘以或除以同一个正数,不等号的方向不变,③不等式的两边都乘以或除以同一个负数,不等号的方向改变.18.在一次“疫情防护”知识竞赛中,竞赛题共25道,选对得4分,不选或选错扣2分,得分不低于60分得奖,那么得奖至少应选对的题数是()A.18B.19C.20D.21【分析】设应选对的题数是x道,根据“得分不低于60分”列出不等式,再解即可.【解答】解:设应选对的题数是x道,由题意得:4x﹣2(25﹣x)≥60,解得:x≥18,∴至少应选对的题数是19,故选:B.【点评】此题主要考查了一元一次不等式的应用,关键是正确理解题意,找出题目中的不等关系,列出不等式.19.已知关于x的不等式组整数解有4个,则b的取值范围是()A.7≤b<8B.7≤b≤8C.8≤b<9D.8≤b≤9【分析】首先确定不等式组的解集,先利用含b的式子表示,根据整数解的个数就可以确定有哪些整数解,根据解的情况可以得到关于b的不等式,从而求出b的范围.【解答】解:由不等式x﹣b≤0,得:x≤b,由不等式x﹣2≥3,得:x≥5,∵不等式组有4个整数解,∴其整数解为5、6、7、8,则8≤b<9,故选:C.【点评】本题考查不等式组的解法及整数解的确定.求不等式组的解集,应遵循以下原则:同大取较大,同小取较小,小大大小中间找,大大小小解不了.本题要根据整数解的取值情况分情况讨论结果,取出合理的答案.20.如果x>y,则下列变形中正确的是()A.﹣x y B.y C.3x>5y D.x﹣3>y﹣3【分析】根据不等式的性质:不等式两边加(或减)同一个数(或式子),不等号的方向不变;不等式两边乘(或除以)同一个正数,不等号的方向不变.不等式两边乘(或除以)同一个负数,不等号的方向改变.【解答】解:A、两边都乘以﹣,故A错误;B、两边都乘以,故B错误;C、左边乘3,右边乘5,故C错误;D、两边都减3,故D正确;故选:D.【点评】主要考查了不等式的基本性质,“0”是很特殊的一个数,因此,解答不等式的问题时,应密切关注“0”存在与否,以防掉进“0”的陷阱.不等式的基本性质:不等式两边加(或减)同一个数(或式子),不等号的方向不变;不等式两边乘(或除以)同一个正数,不等号的方向不变.不等式两边乘(或除以)同一个负数,不等号的方向改变.21.小明将含30°的三角板和一把直尺如图放置,测得∠1=25°,则∠2的度数是()A.25°B.30°C.35°D.40°【分析】根据平行线的性质和三角形的内外角关系即可求解.【解答】解:如图:∵∠1=25°,∠3=∠1+30°,∴∠3=55°,∵直尺的对边平行,∴∠4=∠3=55°,∴∠2=180°﹣90°﹣∠4=180°﹣90°﹣55°=35°,故选:C.【点评】本题考查了平行线的性质和三角形的内外角关系.解题的关键是能够正确找出角度的关系得出答案.22.下列图形中线段PQ的长度表示点P到直线a的距离的是()A.B.C.D.【分析】根据点到直线的距离的定义,可得答案.【解答】解:由题意得PQ⊥a,P到a的距离是PQ垂线段的长,故选:C.【点评】本题考查了点到直线的距离,点到直线的距离是解题关键.23.如图,∠1和∠2是直线____和直线____被直线____所截得到的____.应选()A.a,b,c,同旁内角B.a,c,b,同位角C.a,b,c,同位角D.c,b,a,同位角【分析】根据两条直线被第三条直线所截形成的角中,若两个角都在两直线的同侧,并且在第三条直线(截线)的同旁,则这样一对角叫做同位角可得答案.【解答】解:∠1和∠2是直线b和直线c被直线a所截得到的同位角,故选:D.【点评】此题主要考查了同位角,关键是掌握同位角的边构成“F“形.24.如图,给出了过直线外一点作已知直线的平行线的方法,其依据是()A.同位角相等,两直线平行B.内错角相等,两直线平行C.同旁内角互补,两直线平行D.两直线平行,同位角相等【分析】判定两条直线是平行线的方法有:可以由内错角相等,两直线平行;同位角相等,两直线平行;同旁内角互补两直线平行等,应结合题意,具体情况,具体分析.【解答】解:图中所示过直线外一点作已知直线的平行线,则利用了同位角相等,两直线平行的判定方法.故选:A.【点评】本题主要考查了平行线的判定方法.这是以后做题的基础.要求学生熟练掌握.25.下列语句是命题的是()(1)两点之间,线段最短(2)如果两个角的和是90度,那么这两个角互余(3)如果x2>0,那么x>0吗?(4)过直线外一点作已知直线的垂线A.(1)(2)B.(3)(4)C.(1)(3)D.(2)(4)【分析】根据命题的定义分别对四个语句进行判断即可.【解答】解:(1)两点之间,线段最短,对问题做出了判断,是命题,符合题意;(2)如果两个角的和是90度,那么这两个角互余,对问题做出了判断,是命题,符合题意;(3)如果x2>0,那么x>0吗?是疑问句,不是命题,不符合题意;(4)过直线外一点作已知直线的垂线是陈述句,不是命题,命题有(1)(2),故选:A.【点评】本题考查了命题与定理:判断一件事情的语句,叫做命题.许多命题都是由题设和结论两部分组成,题设是已知事项,结论是由已知事项推出的事项,一个命题可以写成“如果…那么…”形式.有些命题的正确性是用推理证实的,这样的真命题叫做定理.26.直线AB、CD、EF相交于O,则∠1+∠2+∠3=()A.90°B.120°C.180°D.140°【分析】根据对顶角相等可得∠4=∠3,再根据平角的定义解答.【解答】解:如图,∠4=∠3,∵∠2+∠1+∠4=180°,∴∠1+∠2+∠3=180°.故选:C.【点评】本题考查了对顶角相等的性质,平角的定义,准确识图是解题的关键.27.如图,直线a∥b,将一块含30°角(∠BAC=30°)的直角三角尺按图中方式放置,其中A和C两点分别落在直线a和b上.若∠1=20°,则∠2的度数为()A.20°B.30°C.40°D.50°【分析】直接利用平行线的性质结合三角形内角和定理得出答案.【解答】解:∵直线a∥b,∴∠1+∠BCA+∠2+∠BAC=180°,∵∠BAC=30°,∠BCA=90°,∠1=20°,∴∠2=40°.故选:C.【点评】此题主要考查了平行线的性质,正确掌握平行线的性质是解题关键.28.在下列四项调查中,方式正确的是()A.了解本市中学生每天学习所用的时间,采用全面调查的方式B.为保证运载火箭的成功发射,对其所有的零部件采用抽样调查的方式C.了解某市每天的流动人口数,采用全面调查的方式D.了解全市中学生的视力情况,采用抽样调查的方式【分析】由普查得到的调查结果比较准确,但所费人力、物力和时间较多,而抽样调查得到的调查结果比较近似.【解答】解:A、了解本市中学生每天学习所用的时间,调查范围广适合抽样调查,故A 不符合题意;B、为保证运载火箭的成功发射,对其所有的零部件采用全面调查的方式,故B不符合题意;C、了解某市每天的流动人口数,无法普查,故C不符合题意;D、了解全市中学生的视力情况,采用抽样调查的方式,故D符合题意;故选:D.【点评】本题考查了抽样调查和全面调查的区别,选择普查还是抽样调查要根据所要考查的对象的特征灵活选用,一般来说,对于具有破坏性的调查、无法进行普查、普查的意义或价值不大,应选择抽样调查,对于精确度要求高的调查,事关重大的调查往往选用普查.29.为了了解2019年我校560名七年级学生期末考试的数学成绩,从中随机抽取了200名学生的数学成绩进行分析,下列说法正确的是()A.2019年我校七年级学生是总体B.样本容量是560C.60名七年级学生是总体的一个样本D.每一名七年级学生的数学成绩是个体【分析】总体是指考查的对象的全体,个体是总体中的每一个考查的对象,样本是总体中所抽取的一部分个体,而样本容量则是指样本中个体的数目.我们在区分总体、个体、样本、样本容量,这四个概念时,首先找出考查的对象.从而找出总体、个体.再根据被收集数据的这一部分对象找出样本,最后再根据样本确定出样本容量.【解答】解:A、2019年我校560名七年级学生期末考试的数学成绩是总体,故A不符合题意;B.样本容量是200,故B不符合题意;C、200名七年级学生的数学成绩是一个样本,故C不符合题意;D、每一名七年级学生的数学成绩是个体,故D符合题意;故选:D.【点评】考查了总体、个体、样本、样本容量,解题要分清具体问题中的总体、个体与样本,关键是明确考查的对象.总体30.点M(3,﹣1)经过平移到达点N,N的坐标为(2,1),那么平移方式是()A.先向左平移1个单位,再向下平移2个单位B.先向右平移1个单位,再向下平移2个单位C.先向左平移1个单位,再向上平移2个单位D.先向右平移1个单位,再向上平移2个单位【分析】根据向左平移横坐标减,向上平移纵坐标加解答.【解答】解:∵点M(3,﹣1)经过平移到达点N,N的坐标为(2,1),∴平移方式是先向左平移1个单位,再向上平移2个单位.故选:C.【点评】本题考查了坐标与图形变化﹣平移,平移中点的变化规律是:横坐标右移加,左移减;纵坐标上移加,下移减.。

八年级下册人教版英语情态动词专项练习(含答案和解析)及解析

八年级下册人教版英语情态动词专项练习(含答案和解析)及解析

八年级下册人教版英语情态动词专项练习(含答案和解析)及解析一、选择题1.—I prefer western food. It’s delicious and good for us.—_______ ? But western food is said to be high in sugar and fat.A.Is that right B.How do you know thatC.Do you really think so D.Who told you that2.—I’m going hiking this afternoon. Would you like to go with me?—______, but I must finish my homework first.A.Sorry, I don’t B.That’s right C.I’d love to D.Not at all 3.—Don’t forget to keep safe distance (距离) at least one meter, Mike!—________A.Sorry, I won’t.B.No, I can’t do it.C.Not at all. D.I hope not. 4.—The game is too hard for me. I will certainly lose.—________. You should never say no before you try.A.Forget it! B.Come on! C.I’m sorry.D.Pardon me? 5.—Here’s your change.—________A.My pleasure. B.Thank you. C.With pleasure. D.No problem. 6.—Oh, no! There isn't any salt left.—____________! I’ll buy some when I go into town.A.Good idea B.Go ahead C.Never mind D.Not at all 7.— I find it difficult to fall asleep before exams. Could you help me?— ___________. We have helped many students with similar problems.A.No problem B.Come on C.Well done D.What a pity 8.—I’m afraid I can’t get good grades in the P.E. exam.—________! Train as much as you can.A.Well done B.Keep trying C.Enjoy yourself D.Be careful 9.—I’m afraid I can’t do well in the sports meeting. I might let my classmates down.—_______. You don’t need to push yourself too hard.A.It’s a pleasure B.What a pity C.Take it easy D.You’re welcome 10.—It's a shame to ask you to lend me more money, but. . .— ______ . You really need money to keep on with your education.A.Don't be silly B.Forget it C.No way D.Don't mention it 11.– Would you like me to lock the door?– _______A.Yes, I’d like to.B.It’s a pleasure.C.Yes, please. D.It doesn’t matter. 12.—Can I look at the menu for a few more minutes before I decide?—Of course. ________, Sir.A.Make yourself at home B.Enjoy yourself C.It doesn’t matterD.Take your time13.—I’m sorry. That wasn’t of much help.— ________. In fact, it was most helpful.A.Thanks anyway B.It doesn’t matter C.Of course not D.Sure it was 14.—Another Friday! Let’s go to see the play tonight.—________ I will book the tickets online.A.My pleasure. B.That’s right.C.Why not? D.Never mind. 15.-Do you think the rain will stop tomorrow?-_____. It has rained for four days. It’s too wet everywhere.A.I hope not B.I don’t think soC.Don’t worry D.I hope so16.— Could you please clean your room?—_________. I’ll do it at once.A.Yes, sure B.Sorry, I can’t C.It doesn’t matter D.Here you are 17.—Would you like a small or a large bowl of noodles? —_______. I’m very hungry. A.A small bowl B.A large bowl C.Yes, please D.No, thanks 18.— Shall we go to Nanjing Green Expo Park to enjoy the beautiful flowers this afternoon?— ________. Let’s go there by bike.A.I think so B.That’s all right C.My pleasure D.Sounds great 19.—TV says there will be a heavy rain tomorrow.—________. I planned to go climbing with my friend.A.Bad luck B.I hope so C.Good idea D.I don’t mind 20.—Why not take your son to watch the new film A Little Red Flower?—__________.A.Good idea B.No problem C.Good luck D.No way 21.—Do you like cartoons or scary movies?—_______. They can cheer me up.A.Yes, I do B.No, I don't C.Cartoons D.Scary movies 22.—Excuse me, can you give me some water? The cup is empty.—________A.Go ahead. B.My pleasure C.At your service D.You’d better not. 23.—You seem so happy today, Jack.—________? I won the first prize in the singing competition yesterday.A.So what B.How come C.Guess what D.Why not 24.—Susan, will you please go and empty that drawer?— _________ ?A.What for B.What is it C.How is it D.How come 25.–This box is too heavy for me to carry upstairs.–__________A.You may ask for help B.I’ll give you a handC.Please do me a favor D.I’d come to help26.—I wonder if Tenny is doing well in her new school.—________. She is old enough to look after herself well.A.You’re welcome B.Good luck C.It’s a pity D.No need to worry 27.—All of Mark Twain’s novels are popular.— ________. Especially The Adventures of Tom Sawyer.A.I can’t agree more B.That’s not the case C.That’s not the point D.Don’t mention it 28.—Time is up. I have to go now.—________ ! We don’t have more time to talk.A.That’s cool B.That’s the answer C.That’s a p ity D.That’s good news 29.—Don’t keep the water running when you brush your teeth.— ________ .A.I hope so B.I’m afraid not C.Sorry, I won’t D.It’s nothing 30.—I find it really unwise to go travelling during May Day holiday.—________! Wherever you go, it’s crowded with cars and people.A.Not exactly B.Forget it C.You said it D.It depends 31.—Only those who have a lot in common can get along well.—________ Opposites sometimes attract.A.I think so. B.I don’t think so.C.I don’t care.D.I hope so. 32.—Only those who have a lot in common can get along well.—________. Opposites sometimes attract.A.I think so B.I don’t think so C.I don’t care D.I hope so 33.—Shall we go to the amusement park right away or the day after tomorrow?—________. Any time will do.A.Excuse me B.Have a good timeC.It’s up to you D.I’m afraid I can’t34.— Mr. Smith, I won the first prize in the competition.—______ I think you’ll do better and better.A.Congratulations! B.Good idea! C.That’s all right!D.What a shame! 35.—Oh, my love, you say you have ordered a dozen cups of bubble tea (奶茶)?—________A.Agree. B.Forget it. C.I really do. D.Are you kidding me? 36.—Hi, everybody! Here is the music.—________. Let’s dance to the music.A.That’s no good B.Here we go C.That’s a shame D.Have a good time 37.—I’m so sorry to keep you waiting for me so long.— ________!A.With pleasure. B.Don’t say so C.I don’t think so D.It doesn’t matter 38.—How about buying that coat?—________. It’s too expensive. I can’t afford it.A.That sounds good B.No way C.Good idea D.What a pity 39.—Can you tell me how to get to the park?—________—Thank you all the same.A.Show me the map, please.B.Certainly. It’s opposite the museum.C.Sorry, I don’t know. I’m a stranger here.D.Sure. Turn right and go along Rock Road.40.—Many people think women are better at cooking than men.—________. Most top chefs in the world are men.A.I agree B.I can’t agree more C.Not at all D.That’s not the case 41.—I’ll be away on a business trip. Would you mind looking after my cat?—Not at all. ________.A.It’s my pleasure B.I’d rather not.C.I’d like it.D.With pleasure. 42.— Wow, what a good smell! Can I have a piece of cake?— ________A.No way. B.Good idea! C.HeIp yourself. D.What a pity! 43.—Summer camping gives children the chance to live away from home.—________. It is always good to help children grow up.A.That’s true.B.Come this way. C.Let me have a look. D.I don’t think we agree.44.—Thank you for helping to build hospitals during this special period.— ________ ! Many hands make light work.A.My pleasure B.All right C.Never mind D.None of my business45.— Would you mind my turning on the TV? The New Year concert has just begun.— ________. Just go ahead.A.Please don’t B.Better not C.Of course not D.I’m afraid not 46.—I visited the Purple Mountain Observatory by myself last Saturday.—________ Why didn’t you tell me earlier?A.You did? B.I hope not. C.Have a good time. D.I can’t believe it. 47.— The movie Lost in Russia sends a message about the importance of family.— ________. It reminds me of my parents.A.I hope so B.That’s all right C.You bet D.I don’t think so 48.— The dress I got is not the same color as that is shown online.—________? But if so, I promise we will send you another one.A.How come B.Who knows C.What for D.Why worry 49.— I guess you want to play tennis in the park this afternoon.—_______. That’s exactly what I was thinking just now.A.It’s up to you B.Of course not C.You read my mind D.It’s hard to say 50.— Do you think Steve will pass the exam this time?— ________! He spends most of his time playing games on the phone.A.Promise B.No way C.Well done D.No problem【参考答案】***试卷处理标记,请不要删除一、选择题1.C【详解】句意:——我更喜欢西餐。

八年级物理下册精选50题(选择题提优)-涵盖重点易错难点

八年级物理下册精选50题(选择题提优)-涵盖重点易错难点

八年级物理下册精选50题(选择题提优)-涵盖重点易错难点八下期末选择精练1.2010 年的东亚足球四强赛中,中国队与韩国队的比赛进行到第62 分钟时,中国男足队员邓卓翔连过三人杀入禁区,一脚冷静的弧线球绕过门将,直入球门后角,3:0 锁定胜局。

足球离开脚面后在空中飞行的过程中,使足球运动状态发生改变的施力物体是()A. 邓卓翔和地球B. 足球和空气C. 守门员和地球D. 地球和空气2.体重为490N 的某同学用双手握住竖直的木杆匀速上攀,他所受的摩擦力()A. 等于490N ,方向竖直向下B. 等于490N,方向竖直向上C. 大于490N ,方向竖直向下D. 小于490N,方向竖直向上3.把一个重为2 牛的苹果竖直向上抛出,苹果在空中受到重力和空气阻力的作用。

若苹果在上升和下降过程中所受合力的大小分别为F1、F2 , 则()A F i可能小于F2B F i可能等于F2C F i 一定等于F2D F i 一定大于F24.如图所示,静止在水平路面上的小车,其支架的杆子上固定一铁球,关于杆子给铁球的奉J)的方向,下列说法正确的是(A .沿杆子C.竖直向上的某一方向5.如图(甲)所示,.垂直于杆子・沿杆子与竖直方向之间物体甲重30N,©被50N的水平压力F甲压在竖直墙壁上保持静止.(乙)所示,物体乙重60N,在40N的水平拉力F乙作用下,沿水平桌面匀速向右运动•则物体甲受到的摩擦力f甲和物体乙受到的摩擦力f乙分别是()A. f 甲=30N? f 乙=40NC. f 甲=50N? f 乙=40N 乙=60N B . f 甲=30N?乙=60N D . f 甲=50N?6 •体育课上小伟和小强进行爬绳和爬杆比16N,乙重 12N,赛.小伟爬绳小强爬杆,两人同时匀速向上爬, 则( )A. 小强受杆的摩擦力小于他受的重力B. 小伟受绳的摩擦力大于他受的重力C. 小强受的摩擦力与重力大 小相等,方向相同D. 小强受的摩擦力与重力大 小相等,方向相反7 •如图所示实验装置,甲重静止时不计弹簧测力计自重,则弹簧测力计的 示数是()A. 16NB.12NC.28ND.4N8. —木块在水平地面上做匀速直线运动, 此时 它受到的水平拉力为0.5N ,若把拉力增大到0.8N ,仍使木块在该平面上运动,这时木块受 到的合力为()A. 1.3NB.0.8NC. 0.3ND. 0N9. 有两个鸡蛋,一生一熟,让它们在光滑的水平桌面上以同样的速度同时开始转动()A. 生鸡蛋很快停止转动,熟鸡蛋转了一会儿才停止B. 熟鸡蛋很快停止转动,生鸡蛋转了一会儿才停止C. 两个鸡蛋都很快停止转动D.两个鸡蛋都转了一会儿,然后同时停止10.挂在竖直墙壁上的石英钟,它的秒针在走动时会受到转轴处的摩擦阻力和重力的作用. 当石英钟内电池的电能将耗尽而停止走动时,其秒针往往停在表盘上的()A .“3” 的位置B .“6” 的位置C.“ 9”的位置 D .“ 12"的位置11.关于平衡力,下列说法正确的是()A. 物体只有静止时受到的力才是平衡力B. 作用在一条直线上的两力,大小相等,这两个力一定是平衡力C. 物体在平衡力的作用下,处于静止状态或匀速直线运动状态D. 物体受到的拉力和重力大小相等,这两个力一定平衡12. 小明同学喜欢动手用简易器材探究物理问题。

2023年中考苏科版数学一轮复习专题练习-二次根式

2023年中考苏科版数学一轮复习专题练习-二次根式

2023年中考数学一轮复习专题练习八下 第12章 二次根式一、 选择题1. 9的平方根是A .±3B .3C .±4.5D .4.5 2. 使代数式12-x x 有意义的x 的取值范围是( ) A .x≥0 B .x≠21 C .x≥0且x≠21 D .一切实数 3. 下列计算正确的是( )A .a 6÷a 2=a 3B .(a 3)2=a 2C .25=±5D .38-=-24. 若5=a ,17=b ,则85.0的值用a. b 可表示为( ) A .10b a + B .10a b - C .10ab D .ab 5. 能使等式22-=-x x x x 成立的x 的取值范围是 ( ) A .x≠2 B .x≥0 C .x >2 D .x≥2 6. 下列计算正确的是( )A .0(2)0-=B .239-=-C 3=D =7. 已知实数x ,y 满足8|4|-+-y x =0,则以x ,y 的值为两边长的等腰三角形的周长是( )A .20或16B .20C .16D .以上答案均不对8. 如果ab>0,a+b<0,给出下列各式:①b a b a =,②1=•a b b a ,③b b a ab -=÷,那么其中正确的是( )A .①②B .②③C .①③D .①②③二、填空题9. x 应满足的条件是 _______ 。

10. 若y =22-+-x x +4,则xy 的平方根为_______。

11. 当x 满足______时,0)3(11--++x x x 有意义。

12. 式子2x x -有意义的x 取值范围是________。

13. 若|x +y +4|+2)2(-x =0,则3x +2y =_____。

14. 若y =x x x 21)1(122-+-+-,则(x +y )2008=_____。

15. 实数a. b 在数轴上的位置如图所示,则化简a b a ++2)(的结果为____。

苏科版数学八年级下册第九章 9.4 矩形、菱形、正方形(选择、填空题)专练(详细答案)

苏科版数学八年级下册第九章 9.4 矩形、菱形、正方形(选择、填空题)专练(详细答案)

9.4 矩形、菱形、正方形(选择、填空题)一.选择题1.菱形具有而一般平行四边形不具有的性质是()A.对边相等B.对角相等C.对角线互相平分D.对角线互相垂直2.如图,四边形ABCD是菱形,AC=8,DB=6,DH⊥AB于H,则DH等于()A.B.C.5 D.43.矩形OABC在平面直角坐标系中的位置如图所示,点B的坐标为(3,4),D 是OA的中点,点E在AB上,当△CDE的周长最小时,点E的坐标为()A.(3,1)B.(3,)C.(3,)D.(3,2)4.如图,在矩形ABCD中,AB=4,BC=6,点E为BC的中点,将△ABE沿AE折叠,使点B落在矩形内点F处,连接CF,则CF的长为()A.B.C.D.5.如图,矩形ABCD的顶点A、C分别在直线a、b上,且a∥b,∠1=60°,则∠2的度数为()A.30°B.45°C.60°D.75°6.如图,点P是矩形ABCD的边AD上的一动点,矩形的两条边AB、BC的长分别是6和8,则点P到矩形的两条对角线AC和BD的距离之和是()A .4.8B .5C .6D .7.27.如图,矩形ABCD 与菱形EFGH 的对角线均交于点O ,且EG ∥BC ,将矩形折叠,使点C 与点O 重合,折痕MN 恰好过点G 若AB=,EF=2,∠H=120°,则DN 的长为( ) A .B .C .﹣D .2﹣8.如图,矩形ABCD 中,O 为AC 中点,过点O 的直线分别与AB 、CD 交于点E 、F ,连结BF 交AC 于点M ,连结DE 、BO .若∠COB=60°,FO=FC ,则下列结论:①FB 垂直平分OC ;②△EOB ≌△CMB ;③DE=EF ;④S △AOE :S △BCM =2:3.其中正确结论的个数是( )A .4个B .3个C .2个D .1个9.如图,在矩形ABCD 中,AD=6,AE ⊥BD ,垂足为E ,ED=3BE ,点P 、Q 分别在BD ,AD 上,则AP +PQ 的最小值为( ) A .2B .C .2D .310.有3个正方形如图所示放置,阴影部分的面积依次记为S 1,S 2,则S 1:S 2等于( )A .1:B .1:2C .2:3D .4:911.如图,正方形ABCD 的边长为9,将正方形折叠,使顶点D 落在BC 边上的点E 处,折痕为GH .若BE :EC=2:1,则线段CH 的长是( ) A .3B .4C .5D .612.如图是由三个边长分别为6、9、x的正方形所组成的图形,若直线AB将它分成面积相等的两部分,则x的值是()A.1或9 B.3或5 C.4或6 D.3或613.如图,在正方形ABCD中,连接BD,点O是BD的中点,若M、N是边AD 上的两点,连接MO、NO,并分别延长交边BC于两点M′、N′,则图中的全等三角形共有()A.2对B.3对C.4对D.5对14.如图,有一平行四边形ABCD与一正方形CEFG,其中E点在AD上.若∠ECD=35°,∠AEF=15°,则∠B的度数为何?()A.50 B.55 C.70 D.7515.如图,面积为24的正方形ABCD中,有一个小正方形EFGH,其中E、F、G 分别在AB、BC、FD上.若BF=,则小正方形的周长为()A.B.C.D.16.如图,在正方形ABCD中,AC为对角线,E为AB上一点,过点E作EF∥AD,与AC、DC分别交于点G,F,H为CG的中点,连接DE,EH,DH,FH.下列结论:=13S ①EG=DF;②∠AEH+∠ADH=180°;③△EHF≌△DHC;④若=,则3S△EDH,其中结论正确的有()△DHCA.1个 B.2个 C.3个 D.4个二.填空题17.如图,在菱形ABCD中,对角线AC与BD相交于点O,AC=8,BD=6,OE⊥BC,垂足为点E,则OE=.18.如图,菱形ABCD的对角线AC、BD相交于点O,E为AD的中点,若OE=3,则菱形ABCD的周长为.19.如图,已知菱形ABCD的边长2,∠A=60°,点E、F分别在边AB、AD上,若将△AEF沿直线EF折叠,使得点A恰好落在CD边的中点G处,则EF=.20.如图,在菱形ABCD中,∠BAD=120°,点E、F分别在边AB、BC上,△BEF 与△GEF关于直线EF对称,点B的对称点是点G,且点G在边AD上.若EG⊥AC,AB=6,则FG的长为.21.如图,延长矩形ABCD的边BC至点E,使CE=BD,连结AE,如果∠ADB=30°,则∠E=度.22.如图,在矩形ABCD中,对角线AC与BD相交于点O,过点A作AE⊥BD,垂足为点E,若∠EAC=2∠CAD,则∠BAE=度.23.如图,在矩形ABCD中,点E、F分别在边CD、BC上,且DC=3DE=3a.将矩形沿直线EF折叠,使点C恰好落在AD边上的点P处,则FP=.24.如图,正方形ABCD的边长为2,对角线AC、BD相交于点O,E是OC的中点,连接BE,过点A作AM⊥BE于点M,交BD于点F,则FM的长为.25.如图,菱形ABCD的面积为120cm2,正方形AECF的面积为50cm2,则菱形的边长为cm.26.如图,在平面直角坐标系中,边长为1的正方形OA1B1C1的两边在坐标轴上,以它的对角线OB1为边作正方形OB1B2C2,再以正方形OB1B2C2的对角线OB2为边作正方形OB2B3C3,以此类推…、则正方形OB2021B2021C2021的顶点B2021的坐标是.27.如图,在平面内,四边形ABCD和BEFG均为正方形,则AG:DF:CE=.28.如图,在Rt△ABC中,∠C=90°,BC=3,AC=4,M为斜边AB上一动点,过M作MD⊥AC,过M作ME⊥CB于点E,则线段DE的最小值为.29.如图,正方形ABCD边长为3,连接AC,AE平分∠CAD,交BC的延长线于点E,FA⊥AE,交CB延长线于点F,则EF的长为.30.如图,在正方形ABCD中,点E,N,P,G分别在边AB,BC,CD,DA上,点M,F,Q都在对角线BD上,且四边形MNPQ和AEFG均为正方形,则的值等于.答案与解析一.选择题1.(2021•莆田)菱形具有而一般平行四边形不具有的性质是()A.对边相等B.对角相等C.对角线互相平分 D.对角线互相垂直【分析】由菱形的性质可得:菱形的对角线互相平分且垂直;而平行四边形的对角线互相平分;则可求得答案.【解答】解:∵菱形具有的性质:对边相等,对角相等,对角线互相平分,对角线互相垂直;平行四边形具有的性质:对边相等,对角相等,对角线互相平分;∴菱形具有而一般平行四边形不具有的性质是:对角线互相垂直.故选D.【点评】此题考查了菱形的性质以及平行四边形的性质.注意菱形的对角线互相平分且垂直.2.(2021•枣庄)如图,四边形ABCD是菱形,AC=8,DB=6,DH⊥AB于H,则DH等于()A.B.C.5 D.4【分析】根据菱形性质求出AO=4,OB=3,∠AOB=90°,根据勾股定理求出AB,再根据菱形的面积公式求出即可.【解答】解:∵四边形ABCD是菱形,∴AO=OC,BO=OD,AC⊥BD,∵AC=8,DB=6,∴AO=4,OB=3,∠AOB=90°,由勾股定理得:AB==5,=,∵S菱形ABCD∴,∴DH=,故选A.【点评】本题考查了勾股定理和菱形的性质的应用,能根据菱形的性质得出S菱=是解此题的关键.形ABCD3.(2021•苏州)矩形OABC在平面直角坐标系中的位置如图所示,点B的坐标为(3,4),D是OA的中点,点E在AB上,当△CDE的周长最小时,点E的坐标为()A.(3,1)B.(3,)C.(3,)D.(3,2)【分析】如图,作点D关于直线AB的对称点H,连接CH与AB的交点为E,此时△CDE的周长最小,先求出直线CH解析式,再求出直线CH与AB的交点即可解决问题.【解答】解:如图,作点D关于直线AB的对称点H,连接CH与AB的交点为E,此时△CDE的周长最小.∵D(,0),A(3,0),∴H(,0),∴直线CH解析式为y=﹣x+4,∴x=3时,y=,∴点E坐标(3,)故选:B.【点评】本题考查矩形的性质、坐标与图形的性质、轴对称﹣最短问题、一次函数等知识,解题的关键是利用轴对称找到点E位置,学会利用一次函数解决交点问题,属于中考常考题型.4.(2021•威海)如图,在矩形ABCD中,AB=4,BC=6,点E为BC的中点,将△ABE沿AE折叠,使点B落在矩形内点F处,连接CF,则CF的长为()A.B.C.D.【分析】连接BF,根据三角形的面积公式求出BH,得到BF,根据直角三角形的判定得到∠BFC=90°,根据勾股定理求出答案.【解答】解:连接BF,∵BC=6,点E为BC的中点,∴BE=3,又∵AB=4,∴AE==5,∴BH=,则BF=,∵FE=BE=EC,∴∠BFC=90°,∴CF==.故选:D.【点评】本题考查的是翻折变换的性质和矩形的性质,掌握折叠是一种对称变换,它属于轴对称,折叠前后图形的形状和大小不变,位置变化,对应边和对应角相等是解题的关键.5.(2021•海南)如图,矩形ABCD的顶点A、C分别在直线a、b上,且a∥b,∠1=60°,则∠2的度数为()A.30°B.45°C.60°D.75°【分析】首先过点D作DE∥a,由∠1=60°,可求得∠3的度数,易得∠ADC=∠2+∠3,继而求得答案.【解答】解:过点D作DE∥a,∵四边形ABCD是矩形,∴∠BAD=∠ADC=90°,∴∠3=90°﹣∠1=90°﹣60°=30°,∵a∥b,∴DE∥a∥b,∴∠4=∠3=30°,∠2=∠5,∴∠2=90°﹣30°=60°.故选C.【点评】此题考查了矩形的性质以及平行线的性质.注意准确作出辅助线是解此题的关键.6.(2021•宜宾)如图,点P 是矩形ABCD 的边AD 上的一动点,矩形的两条边AB 、BC 的长分别是6和8,则点P 到矩形的两条对角线AC 和BD 的距离之和是( )A .4.8B .5C .6D .7.2【分析】首先连接OP ,由矩形的两条边AB 、BC 的长分别为6和8,可求得OA=OD=5,△AOD 的面积,然后由S △AOD =S △AOP +S △DOP =OA•PE +OD•PF 求得答案.【解答】解:连接OP ,∵矩形的两条边AB 、BC 的长分别为6和8,∴S 矩形ABCD =AB•BC=48,OA=OC ,OB=OD ,AC=BD=10, ∴OA=OD=5,∴S △ACD =S 矩形ABCD =24, ∴S △AOD =S △ACD =12,∵S △AOD =S △AOP +S △DOP =OA•PE +OD•PF=×5×PE +×5×PF=(PE +PF )=12, 解得:PE +PF=4.8. 故选:A .【点评】此题考查了矩形的性质以及三角形面积问题.此题难度适中,注意掌握辅助线的作法以及掌握整体数学思想的运用是解题的关键.7.(2021•资阳)如图,矩形ABCD与菱形EFGH的对角线均交于点O,且EG∥BC,将矩形折叠,使点C与点O重合,折痕MN恰好过点G若AB=,EF=2,∠H=120°,则DN的长为()A.B.C.﹣ D.2﹣【分析】延长EG交DC于P点,连接GC、FH,则△GCP为直角三角形,证明四边形OGCM为菱形,则可证CG=OM=CM=OG=,由勾股定理求得GP的值,再由梯形的中位线定理CM+DN=2GP,即可得出答案.【解答】解:延长EG交DC于P点,连接GC、FH;如图所示:则CP=DP=CD=,△GCP为直角三角形,∵四边形EFGH是菱形,∠EHG=120°,∴GH=EF=2,∠OHG=60°,EG⊥FH,∴OG=GH•sin60°=2×=,由折叠的性质得:CG=OG=,OM=CM,∠MOG=∠MCG,∴PG==,∵OG∥CM,∴∠MOG+∠OMC=180°,∴∠MCG+∠OMC=180°,∴OM∥CG,∴四边形OGCM为平行四边形,∵OM=CM,∴四边形OGCM为菱形,∴CM=OG=,根据题意得:PG 是梯形MCDN 的中位线,∴DN +CM=2PG=,∴DN=﹣; 故选:C .【点评】本题考查了矩形的性质、菱形的性质、翻折变换的性质、勾股定理、梯形中位线定理、三角函数等知识;熟练掌握菱形和矩形的性质,由梯形中位线定理得出结果是解决问题的关键.8.(2021•眉山)如图,矩形ABCD 中,O 为AC 中点,过点O 的直线分别与AB 、CD 交于点E 、F ,连结BF 交AC 于点M ,连结DE 、BO .若∠COB=60°,FO=FC ,则下列结论:①FB 垂直平分OC ;②△EOB ≌△CMB ;③DE=EF ;④S △AOE :S △BCM =2:3.其中正确结论的个数是( )A .4个B .3个C .2个D .1个【分析】①利用线段垂直平分线的性质的逆定理可得结论;②在△EOB 和△CMB 中,对应直角边不相等;③可证明∠CDE=∠DFE ;④可通过面积转化进行解答.【解答】解:①∵矩形ABCD 中,O 为AC 中点,∴OB=OC ,∵∠COB=60°,∴△OBC 是等边三角形,∴OB=BC,∵FO=FC,∴FB垂直平分OC,故①正确;②∵△BOC为等边三角形,FO=FC,∴BO⊥EF,BF⊥OC,∴∠CMB=∠EOB=90°,但BO≠BM,故②错误;③易知△ADE≌△CBF,∠1=∠2=∠3=30°,∴∠ADE=∠CBF=30°,∠BEO=60°,∴∠CDE=60°,∠DFE=∠BEO=60°,∴∠CDE=∠DFE,∴DE=EF,故③正确;④易知△AOE≌△COF,∴S△AOE =S△COF,∵S△COF =2S△CMF,∴S△AOE :S△BCM=2S△CMF:S△BCM=,∵∠FCO=30°,∴FM=,BM=CM,∴=,∴S△AOE :S△BCM=2:3,故④正确;所以其中正确结论的个数为3个;故选B【点评】本题综合性比较强,既考查了矩形的性质、等腰三角形的性质,又考查了全等三角形的性质和判定,及线段垂直平分线的性质,内容虽多,但不复杂;看似一个选择题,其实相当于四个证明题,属于常考题型.9.(2021•雅安)如图,在矩形ABCD中,AD=6,AE⊥BD,垂足为E,ED=3BE,点P、Q分别在BD,AD上,则AP+PQ的最小值为()A.2 B.C.2 D.3【分析】在Rt△ABE中,利用三角形相似可求得AE、DE的长,设A点关于BD 的对称点A′,连接A′D,可证明△ADA′为等边三角形,当PQ⊥AD时,则PQ最小,所以当A′Q⊥AD时AP+PQ最小,从而可求得AP+PQ的最小值等于DE的长,可得出答案..【解答】解:设BE=x,则DE=3x,∵四边形ABCD为矩形,且AE⊥BD,∴△ABE∽△DAE,∴AE2=BE•DE,即AE2=3x2,∴AE=x,在Rt△ADE中,由勾股定理可得AD2=AE2+DE2,即62=(x)2+(3x)2,解得x=,∴AE=3,DE=3,如图,设A点关于BD的对称点为A′,连接A′D,PA′,则A′A=2AE=6=AD,AD=A′D=6,∴△AA′D是等边三角形,∵PA=PA′,∴当A′、P、Q三点在一条线上时,A′P+PQ最小,又垂线段最短可知当PQ⊥AD时,A′P+PQ最小,∴AP+PQ=A′P+PQ=A′Q=DE=3,故选D.【点评】本题主要考查轴对称的应用,利用最小值的常规解法确定出A的对称点,从而确定出AP+PQ的最小值的位置是解题的关键,利用条件证明△A′DA是等边三角形,借助几何图形的性质可以减少复杂的计算.10.(2021•南宁)有3个正方形如图所示放置,阴影部分的面积依次记为S1,S2,则S1:S2等于()A.1:B.1:2 C.2:3 D.4:9【分析】设小正方形的边长为x,再根据相似的性质求出S1、S2与正方形面积的关系,然后进行计算即可得出答案.【解答】解:设小正方形的边长为x,根据图形可得:∵=,∴=,∴=,∴S1=S正方形ABCD,∴S1=x2,∵=,∴=,∴S2=S正方形ABCD,∴S2=x2,∴S1:S2=x2:x2=4:9;故选D.【点评】此题考查了正方形的性质,用到的知识点是正方形的性质、相似三角形的性质、正方形的面积公式,关键是根据题意求出S1、S2与正方形面积的关系.11.(2021•毕节市)如图,正方形ABCD的边长为9,将正方形折叠,使顶点D 落在BC边上的点E处,折痕为GH.若BE:EC=2:1,则线段CH的长是()A.3 B.4 C.5 D.6【分析】根据折叠可得DH=EH,在直角△CEH中,设CH=x,则DH=EH=9﹣x,根据BE:EC=2:1可得CE=3,可以根据勾股定理列出方程,从而解出CH的长.【解答】解:设CH=x,则DH=EH=9﹣x,∵BE:EC=2:1,BC=9,∴CE=BC=3,∴在Rt△ECH中,EH2=EC2+CH2,即(9﹣x)2=32+x2,解得:x=4,即CH=4.故选(B).【点评】本题主要考查正方形的性质以及翻折变换,折叠问题其实质是轴对称变换.在直角三角形中,利用勾股定理列出方程进行求解是解决本题的关键.12.(2021•徐州)如图是由三个边长分别为6、9、x的正方形所组成的图形,若直线AB将它分成面积相等的两部分,则x的值是()A.1或9 B.3或5 C.4或6 D.3或6【分析】根据题意列方程,即可得到结论.【解答】解:如图,∵若直线AB将它分成面积相等的两部分,∴(6+9+x)×9﹣x•(9﹣x)=×(62+92+x2)﹣6×3,解得x=3,或x=6,故选D.【点评】本题考查了正方形的性质,图形的面积的计算,准确分识别图形是解题的关键.13.(2021•陕西)如图,在正方形ABCD中,连接BD,点O是BD的中点,若M、N是边AD上的两点,连接MO、NO,并分别延长交边BC于两点M′、N′,则图中的全等三角形共有()A.2对 B.3对 C.4对 D.5对【分析】可以判断△ABD≌△BCD,△MDO≌△M′BO,△NOD≌△N′OB,△MON ≌△M′ON′.由此即可得出答案.【解答】解:∵四边形ABCD是正方形,∴AB=CD=CB=AD,∠A=∠C=∠ABC=∠ADC=90°,AD∥BC,在△ABD和△BCD中,,∴△ABD≌△BCD,∵AD∥BC,∴∠MDO=∠M′BO,在△MOD和△M′OB中,,∴△MDO≌△M′BO,同理可证△NOD≌△N′OB,∴△MON≌△M′ON′,∴全等三角形一共有4对.故选C.【点评】本题考查正方形的性质、全等三角形的判定和性质,解题的关键是熟练掌握全等三角形的判定方法,属于基础题,中考常考题型.14.(2021•台湾)如图,有一平行四边形ABCD与一正方形CEFG,其中E点在AD上.若∠ECD=35°,∠AEF=15°,则∠B的度数为何?()A.50 B.55 C.70 D.75【分析】由平角的定义求出∠CED的度数,由三角形内角和定理求出∠D的度数,再由平行四边形的对角相等即可得出结果.【解答】解:∵四边形CEFG是正方形,∴∠CEF=90°,∵∠CED=180°﹣∠AEF﹣∠CEF=180°﹣15°﹣90°=75°,∴∠D=180°﹣∠CED﹣∠ECD=180°﹣75°﹣35°=70°,∵四边形ABCD为平行四边形,∴∠B=∠D=70°(平行四边形对角相等).故选C.【点评】本题考查了正方形的性质、平行四边形的性质、三角形内角和定理等知识;熟练掌握平行四边形和正方形的性质,由三角形内角和定理求出∠D的度数是解决问题的关键.15.(2021•呼和浩特)如图,面积为24的正方形ABCD中,有一个小正方形EFGH,其中E、F、G分别在AB、BC、FD上.若BF=,则小正方形的周长为()A.B.C.D.【分析】先利用勾股定理求出DF,再根据△BEF∽△CFD,得=求出EF即可解决问题.【解答】解:∵四边形ABCD是正方形,面积为24,∴BC=CD=2,∠B=∠C=90°,∵四边形EFGH是正方形,∴∠EFG=90°,∵∠EFB+∠DFC=90°,∠BEF+∠EFB=90°,∴∠BEF=∠DFC,∵∠EBF=∠C=90°,∴△BEF∽△CFD,∴=,∵BF=,CF=,DF==,∴=,∴EF=,∴正方形EFGH的周长为.故选C.【点评】本题考查正方形的性质、相似三角形的判定和性质等知识,解题的关键是正确寻找相似三角形,利用相似三角形的性质解决问题,属于中考常考题型.16.(2021•昆明)如图,在正方形ABCD中,AC为对角线,E为AB上一点,过点E作EF∥AD,与AC、DC分别交于点G,F,H为CG的中点,连接DE,EH,DH,FH.下列结论:=13S ①EG=DF;②∠AEH+∠ADH=180°;③△EHF≌△DHC;④若=,则3S△EDH,其中结论正确的有()△DHCA.1个 B.2个 C.3个 D.4个【分析】①根据题意可知∠ACD=45°,则GF=FC,则EG=EF﹣GF=CD﹣FC=DF;②由SAS证明△EHF≌△DHC,得到∠HEF=∠HDC,从而∠AEH+∠ADH=∠AEF+∠HEF+∠ADF﹣∠HDC=180°;③同②证明△EHF≌△DHC即可;④若=,则AE=2BE,可以证明△EGH≌△DFH,则∠EHG=∠DHF且EH=DH,则∠DHE=90°,△EHD为等腰直角三角形,过H点作HM垂直于CD于M点,设HM=x,则DM=5x,DH=x,CD=6x,则S△DHC=×HM×CD=3x2,S△EDH=×DH2=13x2.【解答】解:①∵四边形ABCD为正方形,EF∥AD,∴EF=AD=CD,∠ACD=45°,∠GFC=90°,∴△CFG为等腰直角三角形,∴GF=FC,∵EG=EF﹣GF,DF=CD﹣FC,∴EG=DF,故①正确;②∵△CFG为等腰直角三角形,H为CG的中点,∴FH=CH,∠GFH=∠GFC=45°=∠HCD,在△EHF和△DHC中,,∴△EHF≌△DHC(SAS),∴∠HEF=∠HDC,∴∠AEH+∠ADH=∠AEF+∠HEF+∠ADF﹣∠HDC=∠AEF+∠ADF=180°,故②正确;③∵△CFG为等腰直角三角形,H为CG的中点,∴FH=CH,∠GFH=∠GFC=45°=∠HCD,在△EHF和△DHC中,,∴△EHF≌△DHC(SAS),故③正确;④∵=,∴AE=2BE,∵△CFG为等腰直角三角形,H为CG的中点,∴FH=GH,∠FHG=90°,∵∠EGH=∠FHG+∠HFG=90°+∠HFG=∠HFD,在△EGH和△DFH中,,∴△EGH≌△DFH(SAS),∴∠EHG=∠DHF,EH=DH,∠DHE=∠EHG+∠DHG=∠DHF+∠DHG=∠FHG=90°,∴△EHD为等腰直角三角形,过H点作HM垂直于CD于M点,如图所示:设HM=x,则DM=5x,DH=x,CD=6x,=×HM×CD=3x2,S△EDH=×DH2=13x2,则S△DHC=13S△DHC,故④正确;∴3S△EDH故选:D.【点评】本题考查了正方形的性质、全等三角形的判定与性质、等腰直角三角形的判定与性质、勾股定理、三角形面积的计算等知识;熟练掌握正方形的性质,证明三角形全等是解决问题的关键.二.填空题(共14小题)17.(2021•内江)如图,在菱形ABCD中,对角线AC与BD相交于点O,AC=8,BD=6,OE⊥BC,垂足为点E,则OE=.【分析】先根据菱形的性质得AC⊥BD,OB=OD=BD=3,OA=OC=AC=4,再在Rt△OBC中利用勾股定理计算出BC=5,然后利用面积法计算OE的长.【解答】解:∵四边形ABCD为菱形,∴AC⊥BD,OB=OD=BD=3,OA=OC=AC=4,在Rt△OBC中,∵OB=3,OC=4,∴BC==5,∵OE⊥BC,∴OE•BC=OB•OC,∴OE==.故答案为.【点评】本题考查了菱形的性质:菱形具有平行四边形的一切性质;菱形的四条边都相等;菱形的两条对角线互相垂直,并且每一条对角线平分一组对角.也考查了勾股定理和三角形面积公式.18.(2021•扬州)如图,菱形ABCD的对角线AC、BD相交于点O,E为AD的中点,若OE=3,则菱形ABCD的周长为24.【分析】由菱形的性质可得出AC⊥BD,AB=BC=CD=DA,再根据直角三角形斜边上的中线等于斜边的一半得出AD的长,结合菱形的周长公式即可得出结论.【解答】解:∵四边形ABCD为菱形,∴AC⊥BD,AB=BC=CD=DA,∴△AOD为直角三角形.∵OE=3,且点E为线段AD的中点,∴AD=2OE=6.C菱形ABCD=4AD=4×6=24.故答案为:24.【点评】本题考查了菱形的性质以及直角三角形的性质,解题的关键是求出AD=6.本题属于基础题,难度不大,解决该题型题目时,根据菱形的性质找出对角线互相垂直,再通过直角三角形的性质找出菱形的一条变成是关键.19.(2021•盐城)如图,已知菱形ABCD的边长2,∠A=60°,点E、F分别在边AB、AD上,若将△AEF沿直线EF折叠,使得点A恰好落在CD边的中点G处,则EF=.【分析】延长CD,过点F作FM⊥CD于点M,连接GB、BD,作FH⊥AE交于点H,由菱形的性质和已知条件得出∠MFD=30°,设MD=x,则DF=2x,FM=x,得出MG=x+1,由勾股定理得出(x+1)2+(x)2=(2﹣2x)2,解方程得出DF=0.6,AF=1.4,求出AH=AF=0.7,FH=,证明△DCB是等边三角形,得出BG⊥CD,由勾股定理求出BG=,设BE=y,则GE=2﹣y,由勾股定理得出()2+y2=(2﹣y)2,解方程求出y=0.25,得出AE、EH,再由勾股定理求出EF即可.【解答】解:延长CD,过点F作FM⊥CD于点M,连接GB、BD,作FH⊥AE交于点H,如图所示:∵∠A=60°,四边形ABCD是菱形,∴∠MDF=60°,∴∠MFD=30°,设MD=x,则DF=2x,FM=x,∵DG=1,∴MG=x+1,∴(x+1)2+(x)2=(2﹣2x)2,解得:x=0.3,∴DF=0.6,AF=1.4,∴AH=AF=0.7,FH=AF•sin∠A=1.4×=,∵CD=BC,∠C=60°,∴△DCB是等边三角形,∵G是CD的中点,∴BG⊥CD,∵BC=2,GC=1,∴BG=,设BE=y,则GE=2﹣y,∴()2+y2=(2﹣y)2,解得:y=0.25,∴AE=1.75,∴EH=AE﹣AH=1.75﹣0.7=1.05,∴EF===.故答案为:.【点评】本题考查了菱形的性质、翻折变换的性质、勾股定理、等边三角形的判定与性质等知识;本题综合性强,难度较大,运用勾股定理得出方程是解决问题的关键.20.(2021•哈尔滨)如图,在菱形ABCD中,∠BAD=120°,点E、F分别在边AB、BC上,△BEF与△GEF关于直线EF对称,点B的对称点是点G,且点G在边AD上.若EG⊥AC,AB=6,则FG的长为3.【分析】首先证明△ABC,△ADC都是等边三角形,再证明FG是菱形的高,根=BC•FG即可解决问题.据2•S△ABC【解答】解:∵四边形ABCD是菱形,∠BAD=120°,∴AB=BC=CD=AD,∠CAB=∠CAD=60°,∴△ABC,△ACD是等边三角形,∵EG⊥AC,∴∠AEG=∠AGE=30°,∵∠B=∠EGF=60°,∴∠AGF=90°,∴FG⊥BC,=BC•FG,∴2•S△ABC∴2××(6)2=6•FG,∴FG=3.故答案为3.【点评】本题考查菱形的性质、等边三角形的判定和性质、翻折变换、菱形的面积等知识,记住菱形的面积=底×高=对角线乘积的一半,属于中考常考题型.21.(2021•巴中)如图,延长矩形ABCD的边BC至点E,使CE=BD,连结AE,如果∠ADB=30°,则∠E=15度.【分析】连接AC,由矩形性质可得∠E=∠DAE、BD=AC=CE,知∠E=∠CAE,而∠ADB=∠CAD=30°,可得∠E度数.【解答】解:连接AC,∵四边形ABCD是矩形,∴AD∥BE,AC=BD,且∠ADB=∠CAD=30°,∴∠E=∠DAE,又∵BD=CE,∴CE=CA,∴∠E=∠CAE,∵∠CAD=∠CAE+∠DAE,∴∠E+∠E=30°,即∠E=15°,故答案为:15.【点评】本题主要考查矩形性质,熟练掌握矩形对角线相等且互相平分、对边平行是解题关键.22.(2021•包头)如图,在矩形ABCD中,对角线AC与BD相交于点O,过点A作AE⊥BD,垂足为点E,若∠EAC=2∠CAD,则∠BAE=22.5度.【分析】首先证明△AEO是等腰直角三角形,求出∠OAB,∠OAE即可.【解答】解:∵四边形ABCD是矩形,∴AC=BD,OA=OC,OB=OD,∴OA=OB═OC,∴∠OAD=∠ODA,∠OAB=∠OBA,∴∠AOE=∠OAD+∠ODA=2∠OAD,∵∠EAC=2∠CAD,∴∠EAO=∠AOE,∵AE⊥BD,∴∠AEO=90°,∴∠AOE=45°,∴∠OAB=∠OBA==67.5°,∴∠BAE=∠OAB﹣∠OAE=22.5°.故答案为22.5°.【点评】本题考查矩形的性质、等腰直角三角形的性质等知识,解题的关键是发现△AEO是等腰直角三角形这个突破口,属于中考常考题型.23.(2021•黄冈)如图,在矩形ABCD中,点E、F分别在边CD、BC上,且DC=3DE=3a.将矩形沿直线EF折叠,使点C恰好落在AD边上的点P处,则FP= 2a.【分析】作FM⊥AD于M,则MF=DC=3a,由矩形的性质得出∠C=∠D=90°.由折叠的性质得出PE=CE=2a=2DE,∠EPF=∠C=90°,求出∠DPE=30°,得出∠MPF=60°,在Rt△MPF中,由三角函数求出FP即可.【解答】解:作FM⊥AD于M,如图所示:则MF=DC=3a,∵四边形ABCD是矩形,∴∠C=∠D=90°.∵DC=3DE=3a,∴CE=2a,由折叠的性质得:PE=CE=2a=2DE,∠EPF=∠C=90°,∴∠DPE=30°,∴∠MPF=180°﹣90°﹣30°=60°,在Rt△MPF中,∵sin∠MPF=,∴FP===2a;故答案为:2a.【点评】本题考查了折叠的性质、矩形的性质、三角函数等知识;熟练掌握折叠和矩形的性质,求出∠DPE=30°是解决问题的关键.24.(2021•湖北襄阳)如图,正方形ABCD的边长为2,对角线AC、BD相交于点O,E是OC的中点,连接BE,过点A作AM⊥BE于点M,交BD于点F,则FM的长为.【分析】先根据ASA判定△AFO≌△BEO,并根据勾股定理求得BE的长,再判定△BFM∽△BEO,最后根据对应边成比例,列出比例式求解即可.【解答】解:∵正方形ABCD∴AO=BO,∠AOF=∠BOE=90°∵AM⊥BE,∠AFO=∠BFM∴∠FAO=∠EBO在△AFO和△BEO中∴△AFO≌△BEO(ASA)∴FO=EO∵正方形ABCD的边长为2,E是OC的中点∴FO=EO=1=BF,BO=2∴直角三角形BOE中,BE==由∠FBM=∠EBO,∠FMB=∠EOB,可得△BFM∽△BEO∴,即∴FM=故答案为:【点评】本题主要考查了正方形,解决问题的关键的掌握全等三角形和相似三角形的判定与性质.解题时注意:正方形的对角线将正方形分成四个全等的等腰直角三角形.25.(2021•南京)如图,菱形ABCD的面积为120cm2,正方形AECF的面积为50cm2,则菱形的边长为13cm.【分析】根据正方形的面积可用对角线进行计算解答即可.【解答】解:因为正方形AECF的面积为50cm2,所以AC=cm,因为菱形ABCD的面积为120cm2,所以BD=cm,所以菱形的边长=cm.故答案为:13.【点评】此题考查正方形的性质,关键是根据正方形和菱形的面积进行解答.26.(2021•聊城)如图,在平面直角坐标系中,边长为1的正方形OA1B1C1的两边在坐标轴上,以它的对角线OB1为边作正方形OB1B2C2,再以正方形OB1B2C2的对角线OB2为边作正方形OB2B3C3,以此类推…、则正方形OB2021B2021C2021的顶点B2021的坐标是(21008,0).【分析】首先求出B1、B2、B3、B4、B5、B6、B7、B8、B9的坐标,找出这些坐标的之间的规律,然后根据规律计算出点B2021的坐标.【解答】解:∵正方形OA1B1C1边长为1,∴OB1=,∵正方形OB1B2C2是正方形OA1B1C1的对角线OB1为边,∴OB2=2,∴B2点坐标为(0,2),同理可知OB3=2,∴B3点坐标为(﹣2,2),同理可知OB4=4,B4点坐标为(﹣4,0),B5点坐标为(﹣4,﹣4),B6点坐标为(0,﹣8),B7(8,﹣8),B8(16,0)B9(16,16),B10(0,32),由规律可以发现,每经过8次作图后,点的坐标符号与第一次坐标符号相同,每次正方形的边长变为原来的倍,∵2021÷8=252∴B2021的纵横坐标符号与点B8的相同,横坐标为正值,纵坐标是0,∴B2021的坐标为(21008,0).故答案为:(21008,0).【点评】本题主要考查正方形的性质和坐标与图形的性质的知识点,解答本题的关键是由点坐标的规律发现每经过8次作图后,点的坐标符号与第一次坐标符号相同,每次正方形的边长变为原来的倍.27.(2021•安徽自主招生)如图,在平面内,四边形ABCD和BEFG均为正方形,则AG:DF:CE=1::1.【分析】连接BD、BF,可证明△ABG∽△DBF,可求得AG:DF,连接CE,可证明△ABG≌△CBE,可求得AG=CE,可求得答案.【解答】解:连接BD、BF和CE,∵四边形ABCD和BEFG均为正方形,∴==,且∠ABD=∠GBF=45°,∴∠ABG+∠GBD=∠GBD+∠DBF,∴∠ABG=∠GBD,∴△ABG∽△DBF,∴,又∴AB=BC,BG=BE,∠ABC=∠GBE=90°,∴∠AGB+∠GBC=∠GBC+∠CBE,∴∠AGB=∠CBE,在△ABG和△CBE中∴△ABG≌△CBE(SAS),∴AG=CE,∴AG:CE=1:1,∴AG:DF:CE=1::1,故答案为:1::1.【点评】本题主要考查相似三角形和全等三角形的判定和性质,构造全等或相似三角形是解题的关键.28.(2021•湖北校级自主招生)如图,在Rt△ABC中,∠C=90°,BC=3,AC=4,M为斜边AB上一动点,过M作MD⊥AC,过M作ME⊥CB于点E,则线段DE 的最小值为.【分析】连接CM,先证明四边形CDME是矩形,得出DE=CM,再由三角形的面积关系求出CM的最小值,即可得出结果.【解答】解:连接CM,如图所示:∵MD⊥AC,ME⊥CB,∴∠MDC=∠MEC=90°,∵∠C=90°,∴四边形CDME是矩形,∴DE=CM,∵∠C=90°,BC=3,AC=4,∴AB===5,当CM⊥AB时,CM最短,此时△ABC的面积=AB•CM=BC•AC,∴CM的最小值==,∴线段DE的最小值为;故答案为:.【点评】本题考查了矩形的判定与性质、勾股定理、直角三角形面积的计算方法;熟练掌握矩形的判定与性质,并能进行推理论证与计算是解决问题的关键.29.(2021•丹东)如图,正方形ABCD边长为3,连接AC,AE平分∠CAD,交BC的延长线于点E,FA⊥AE,交CB延长线于点F,则EF的长为6.【分析】利用正方形的性质和勾股定理可得AC的长,由角平分线的性质和平行线的性质可得∠CAE=∠E,易得CE=CA,由FA⊥AE,可得∠FAC=∠F,易得CF=AC,可得EF的长.【解答】解:∵四边形ABCD为正方形,且边长为3,∴AC=3,∵AE平分∠CAD,∴∠CAE=∠DAE,∵AD∥CE,∴∠DAE=∠E,∴∠CAE=∠E,∴CE=CA=3,∵FA⊥AE,∴∠FAC+∠CAE=90°,∠F+∠E=90°,∴∠FAC=∠F,∴CF=AC=3,∴EF=CF+CE=3=6,故答案为:6.【点评】本题主要考查了正方形的性质,角平分线的性质等,利用等角对等边是解答此题的关键.30.(2021•天津)如图,在正方形ABCD中,点E,N,P,G分别在边AB,BC,CD,DA上,点M,F,Q都在对角线BD上,且四边形MNPQ和AEFG均为正方形,则的值等于.【分析】根据辅助线的性质得到∠ABD=∠CBD=45°,四边形MNPQ和AEFG均为正方形,推出△BEF与△BMN是等腰直角三角形,于是得到FE=BE=AE=AB,BM=MN=QM,同理DQ=MQ,即可得到结论.【解答】解:在正方形ABCD中,∵∠ABD=∠CBD=45°,∵四边形MNPQ和AEFG均为正方形,∴∠BEF=∠AEF=90°,∠BMN=∠QMN=90°,∴△BEF与△BMN是等腰直角三角形,∴FE=BE=AE=AB,BM=MN=QM。

八年级下册选择题

八年级下册选择题

八年级下册选择题专练( )1. —How much did you ____ buying the new bike?—Three hundred yuan.A. payB. costC. takeD. spend( )2. —Mike felt sad because he failed his exam yesterday.—I’m sorry to hear that. Let’s ____.A. cheer him onB. cheer on himC. cheer him upD. cheer up him ( )3. Some children were skating on the ice happily. Suddenly one of them ____ the water and the other children felt ____.A. falls into; frighteningB. fell into; frightenedC. fall into; frighteningD. fall into; frightened( )4. —Tom, Jane wanted you to call her.—I’ll ____ in twenty minutes. Thank you.A. call on herB. call her onC. ring up herD. ring her up ( )5. Ann will not be able ____ your birthday party because she has a temperature.A. to come toB. come toC. comesD. to come( )6. Jack wanted to get a ticket to Titanic, but there was ____ left.A. noB. notC. noneD. one( )7. Kate’s grandmother lives in a house____, but she doesn’t feel ____.A. alone; aloneB. lonely; lonelyC. alone; lonelyD. lonely; alone ( )8. He entered PeKing University____. The people in his village are ____ him.A. in the end; pride inB. at the end; pride ofC. in end; proud ofD. in the end; proud of( )9. —What’s the matter with Tom? He seems ____ sad.—His pet dog died.A. feelB. feelsC. to feelD. feeling( )10. —Shall we go hiking this weekend?—Sounds ____.A. goodB. wellC. good ideaD. bad( )11. —There is ____ with my watch, so I don’t know the time.—Let me have a look.A. something wrongB. anything wrongC. wrong somethingD. wrong anything( )12. The weather in Beijing is not ____ good ____ that in Hainan.A. as; thanB. so; asC. than; asD. as; so( )13. —Why does Jane feel so upset?—She failed the exam and she has no friends ____.A. talkingB. talking withC. to talkD. to talk with ( )14. The little girl felt upset ____ her pet dog died.A. whyB. because ofC. becauseD. what( )15. His mother gets up at 6:00 a. m. every day. She is used to ____ early to make breakfast for the family.A. get upB. getting upC. gets upD. got up( )16. The soft music sounds ____. We are all listening ____.A. beautiful; carefullyB. beautifully; carefullyC. moving; carefulD. happily; careful( )17. The baby ____ cry ____ when he saw his mother come in.A. doesn’t; longerB. doesn’t; moreC. didn’t; any moreD. didn’t; any longer( )18. —I think Helen studies English as ____ as Lucy.—I don’t think so. Helen often makes mistakes.A. carefulB. carefullyC. more carefulD. more carefully ( )19. —Beth is ____ shy girl that she is always afraid ____ in public.—I think she should talk to her friends first.A. a such; speakB. such a; of speakingC. a so; speakD. so a; of speaking( )20. ____ Mr. Zhang gave us some good suggestions, we still didn’t deal with those problems very well.A. ThoughB. ButC. BecauseD. /( )21. —Tom must be at home because the light in his house is on.—He ____ be at home, because I saw him playing basketball on the playground.A. mustB. canC. mustn’tD. can’t( )22. You’ll find the bus stop ____ the street.A. at the end ofB. by the end ofC. at the endD. in the end ( )23. —I feel really ____ before making speeches.—Take it easy. You are the best.A. nervousB. disappointedC. unpopularD. bitter( )24. Our headmaster told us how to ____a good mood, so we can study in high spirits.A. keepB. keptC. keepingD. keeps( )25. It makes me so ____ to see children being treated ____.A. angrily; badlyB. angry; badC. angrily; badD. angry; badly ( )26. Before you are going to hand in your test papers, you should ____ again.A. think about themB. think them aboutC. think over themD. think them over ( )27. Mr. Li is ill. Let Mr. Wang ____ us instead of him.A. to teachB. teachC. teachesD. taught( )28. —Do you think it’s important to ____ your family?—Yes, I think so.A. get along onB. get alongC. get along ofD. get along with ( )29. I saw a snake lying across the road ____.A. on the way to homeB. on the way homeC. in the way to homeD. in the way home( )30. —Shall we ____ a short play for Ann’s birthday party?—Sounds great.A. put upB. put downC. put onD. put off( )31. —What about going shopping together?—Sorry, I have a lot of homework ____.A. doB. to doC. doingD. did( )32. It’s impossible for us ____ there on foot in two hours.A. to getB. getC. gettingD. got( )33. —Though Mike is ____ boy, he can say many words.—How clever!A. an-one-year-oldB. a one-year-oldC. an one-year oldD. a one-year old ( )34. —What did the teacher say just now?—He asked them ____ the math problem.A. discussingB. discussedC. to discussD. discuss ( )35. —I’ll go on a visit to Mount Huang.—____A. Thank you.B. Have a good trip!C. Never mind.D. My pleasure. ( )36. I want ____ the answer to the problem. Could you help me?A. to come up withB. coming up withC. come up withD. came up with ( )37. The foreign visitors ____ watching Beijing Opera at Haidian Theater.A. looked forward toB. looking forward toC. are looking forward toD. will look forward to( )38. There are so many bags. You can ____ any one.A. choose fromB. pick fromC. decideD. choose ( )39. —How much did your new car ____ you?—¥800 000.A. spendB. payC. costD. take( )40. They will decide whether ____ the movie The Sound of Music at the cinema.A. seeB. to seeC. seeingD. saw( )41. —Where is Japan, do you know?—It’s ____ the east of China.A. inB. atC. toD. on( )42. —Would you help me plan my vacation?—_____A. All right.B. No, let’s not.C. Thank you.D. Of course not. ( )43. —Mary can’t help ____ the house. Why?—Because she is busy ____ a hotel reservation.A. to clean; makingB. cleaning; makingC. cleaning; to makeD. to clean; to make( )44. My father was watching TV ______ my mother was cooking.A. whenB. untilC. whileD. as soon as ( )45. Mr. Green ____ go to bed ____ he finished his work last night.A. does; untilB. don’t; untilC. didn’t; untilD. isn’t; until ( )46. The official was looking at a postcard sadly ____ his workmate came in.A. whileB. whenC. afterD. before ( )47. —I’m sorry that John is out.—Please ask him to call me as soon as he ____.A. returnedB. returnsC. will returnD. is returning ( )48. The Ming Tombs are ____ the Tianshou Mountains, in the northwest of Beijing.A. at the foot ofB. in the east ofC. in the middleD. in the south of ( )49. I got 99 points in the English exam. My English teacher ____ my score.A. was angry withB. was angry aboutC. was surprised atD. was satisfied at( )50. It took us ____ to finish the new research protect.A. three hour and a halfB. three and a half hourC. three and half hoursD. three and a half hours( )51. —The girls ____ the boys in that exciting football match.—How surprising!A. winB. beatC. hitD. hurt( )52. She didn’t have a rest and ____.A. continue workingB. go on workingC. went on to workD. went on working ( )53. Beijing is famous ____ its places of interest, such as the Forbidden City, the Summer Palace and the Great Wall.A. forB. asC. toD. in( )54. When you ____ the classroom, please turn off the lights.A. leftB. are leavingC. leaveD. leaves( )55. Jack is a little ____ than Peter.A. strongB. strongerC. strongestD. the strongest ( )56. At last, the truck avoided ____ the tree.A. hitB. to hitC. hittingD. hits( )57. Li Lei’s legs were ____ in the traffic accident yesterday.A. badly hurtB. bad hurtC. hurtsD. hurt bad ( )58. Miss Li warns us ____ loudly in the classroom.A. not speakB. not speakingC. not to speakD. don’t speak ( )59. Many animals are not found ____ else. They are extinct (灭绝的).A. anywhereB. everywhereC. in anywhereD. in everywhere ( )60. In Britain, you must drive on the ____ side of the road.A. right-handB. right handC. left handD. left-hand ( )61. My uncle’s family is very poor, so he ____ work hard to make more money.A. need toB. needsC. needs toD. needed to ( )62. I often chat with my classmates ____ the Internet in my spare time.A. onB. throughC. acrossD. by( )63. —____ lovely day! Let’s go for a picnic, shall we?—Good idea!A. WhatB. HowC. What aD. How a( )64. —Do you think Brazil will beat Japan in the next match?—Yes. They have better players. And I ____ to watch the match next Sunday.A. hopeB. preferC. wishD. think( )65. She didn’t sing the so ng ____ at the party last night.A. enough goodB. well enoughC. enough wellD. good enough ( )66. When you have some difficult math problems, you can ____ your math teacher.A. turn toB. to askC. turnD. ask for( )67. Our English teacher is often pleased ____ what we do in class.A. asB. thatC. toD. with( )68. —I lost my MP3 on my way to school this morning.—____ You must be careful next time.A. Take care!B. Excuse me!C. It’s a great pity!D. You’re welcome! ( )69. Jenny’s teeth are not good, because she ____.A. has a sweet toothB. has sweet toothC. have a sweet toothD. have sweet teeth( )70. —Shall we invite our English teacher to the food festival?—That’s a good idea! But I ____ think she ____ come.A. do n’t; willB. /; won’tC. won’t; willD. do; won’t ( )71. It’s very kind ____ you to help me with my English.A. forB. withC. ofD. to( )72. —Could I have ____ bottle of apple juice, please?—Of course. Here you are.A. anotherB. otherC. the otherD. others( )73. Please ____ the ham and green onions finely, then add them to the bread.A. cut upB. cut intoC. cut inD. cut off( )74. Don’t worry. My father will ____ us up in the car if it rains tomorrow.A. bringB. takeC. carryD. pick( )75. I remembered ____ off the light last night, but it was still on.A. turningB. to turnC. turnedD. turn( )76. I don’t know____it’s polite or not to eat with our arms or elbows on the table in America.A. ifB. whetherC. weatherD. which( )77. In old days, people often used animals ____ in the fields.A. to workingB. for workingC. to workD. work( )78. Somebody ____ begging for(讨要) money near the bridge last week.A. isB. wasC. areD. were( )79. It’s impolite ____ laugh at others in our country.A. toB. forC. ontoD. with( )80. —I want to know if Bob ____ us in the discussion tonight.—I believe if he ____ his homework, he will join us.A. will join; will finishB. will join; finishesC. joins; finishesD. joins; will finish( )81. Not only you but also I ____ interested in the English song Yesterday Once More.A. amB. areC. wasD. were( )82. —Remember, everyone. ____ you study, ____ result you’ll get.—We get it(明白), Miss Read.A. The better; the harderB. The harder; the betterC. The hard; the betterD. The harder; the good( )83. —____—Let me have a look. Beijing Roast Duck is¥40. 00, and the hot dog is¥3. 00.A. May I have a bill?B. Can I have the bill?C. Can I help you?D. Can I give you money?( )84. The young mother looks very happy because her son’s progress ____ her.A. satisfyB. satisfyingC. satisfiesD. satisfied ( )85. My little sister likes some soft drinks, ____ tea, milk and lemonade.A. for exampleB. such asC. looks likeD. is like( )86. With Xu Ming’s help, Zhang Lin does his homework ____ than before.A. more carefulB. more carefullyC. much carefulD. much carefully ( )87. —Lucy, where is Jim?—____! Near the tree.A. There is heB. He is thereC. There is himD. There he is ( )88. This book is very interesting, so it is worth ____.A. readB. readingC. to readD. be read ( )89. —____ —Sure. I’d like a bowl of fried noodles and a cup of tea.A. What would you like to buy?B. Would you like something to drink?C. Which kind of foods would you like?D. May I take your order?( )90. —Why not go to the restaurant on foot?—It takes me ____ time.A. too littleB. too muchC. much tooD. many( )91. Not only you but also I ____ interested in the English song Yesterday Once More.A. amB. areC. wasD. were( )92. —Remember, everyone. ____ you study, ____ result you’ll get.—We get it(明白), Miss Read.A. The better; the harderB. The harder; the betterC. The hard; the betterD. The harder; the good( )93. —Why not go to the restaurant on foot?—It takes me ____ time.A. too littleB. too muchC. much tooD. many( )94. —Excuse me, could you tell me ____?—There’s a bank on the second floor. You can do it there.A. where I can change moneyB. how I can get to the bankC. if there’s a bank near hereD. where the bank is( )95. My little sister likes some soft drinks, ____ tea, milk and lemonade.A. for exampleB. such asC. looks likeD. is like( )96. With Xu Ming’s help, Zhang Lin does his homework ____ than before.A. more carefulB. more carefullyC. much carefulD. much carefully ( )97. —Lucy, where is Jim?—____! Near the tree.A. There is heB. He is thereC. There is himD. There he is ( )98. This book is very interesting, so it is worth ____.A. readB. readingC. to readD. be read ( )99.The reporter was busy ____ the famous model.A. interviewingB. interviewsC. interviewedD. interview ( )100. ( )11. Is there ____ in today’s show?A. something interestingB. interesting somethingC. interesting anythingD. anything interesting。

八下《关雎》选择题专练-冲刺2024年中考语文古代诗歌课内篇目常考题型专练(统编版六册)(解析版)

八下《关雎》选择题专练-冲刺2024年中考语文古代诗歌课内篇目常考题型专练(统编版六册)(解析版)

2024年中考语文古代诗歌课内篇目常考题型专练八下《关雎》选择题专练(解释版)关雎男子的爱慕之情和相思之苦,以及对美好爱情的大胆热烈的追求,表现得淋漓尽致,感情坦率朴素、健康明朗、热烈浓郁。

】1.对《关雎》一诗理解有误的一项是()A.选自于《诗经·周南》,风格上热烈而奔放。

B.统领《关雎》全篇的诗句是“关关雎鸠,在河之洲”。

C.《诗经》的主要艺术表现手法有赋、比、兴等,这首诗歌第一章开头用关关雎鸠起兴,运用比的手法点出了恋爱的主题。

D.诗中通过反复写男子对爱情的执着追求且细心呵护的短语是:采之、芼之、友之、乐之。

【答案】B【解析】本题考查的是对《关雎》这首诗的内容的理解、手法运用的分析和思想感情的把握,我们解答时要结合整首诗,逐句进行分析。

B项理解不正确,统领全篇的诗句是:窈窕淑女,君子好逑。

2.下面说法有误的一项是( )A.课本中的两首诗都是古代反映爱情的民歌。

B.“比兴”手法是《诗经》中诗歌常用的手法,《关雎》中就有大量的“比兴”。

C.《关雎》与《蒹葭》都运用了反复的修辞方法。

D.《关雎》的感情真挚热烈,《蒹葭》也表现了热烈奔放的情感。

【答案】D【解析】本题考查学生文学常识的把握,文学常识正误的判断点是:作者名、称谓、生活时代、作品名、体裁、书中人物、主要情节、作品主题及风格、流派等。

回顾所读文章的相关情节,根据问题作答即可。

D 项表述不正确,《蒹葭》表现的是一种可望而不可即的心焦和失望的情感。

3.选出下列对《关雎》一诗赏析不完全正确的......一项..()A.“悠哉悠哉,辗转反侧”以行动来反映君子的深深思恋,十分生动形象。

B.“参差荇菜,左右流之”两句反复使用,增强了诗歌的节奏感,也反映了古代民歌的特色。

C.“寤寐求之”中的“寤”和“寐”分别指醒来和睡着,可见君子思恋之苦。

D.“关关雎鸠,在河之洲”两句运用比喻手法,说明淑女、君子在河滩幽会,营造一种幽静的氛围。

【答案】D要求学生在理解诗歌内容的基础上分析选项。

八年级下册期末复习 选择题专项练习

八年级下册期末复习 选择题专项练习

八年级下册期末复习选择题专项练习Part One( )1.—How do you like _______ TV play Ren Changxia?—Oh, it’s _____ wonderful play. It’s one of _____ best TV plays.A.a; a; theB.the; the; theC.the; a; /D.the; a; the( )2.—Maria likes singing. Do you often hear her _______ after class? —Yes, I do.A.singB.to singC.singsD.sang( )3.—_______ do you have a Music Festival at your school? —Once a year.A.How soonB.How oftenC.How longD.What time( )4.Don’t worry. She can look after your pet _______.A.careful enoughB.enough carefulC.carefully enoughD.enough careful( )5.—Would you mind my smoking here? —_______ It’s not allowed here.A.Of course not.B.Better not.C.Yes, please.D.OK.( )6.After class, I like playing computer games and chatting _______ my friends _______ the Internet.A.to; byB.with; onC.for; inD.about; through( )7.She told us a story, and her voice sounded _______. We’re interested in it.A.sweetB.smallC.clearlyD.sadly( )8.My sister is only three years old. She can’t take care of _______. A.her B.herself C.myself D.yourself ( )9.—_______ —Nothing serious, but a bit tired. —Better have a rest now, dear.A.Is that all?B.Is there anything else?C.What’s this?D.What’s the matter with you?( )10.—Which is _______, the sun, the moon or the earth? —Of course the sun.A.smallerB.the smallestC.biggerD.the biggest( )11.—Must we finish the project in a month? —No, you _______.A.mustn’tB.needn’tC.can’tD.don’t( )12.—What were you doing at this time yesterday?—We _______ in the classroom.A.readB.were readingC.are readingD.was reading( )13.Ride slowly please. There is _______ water on the road today.A.much tooB.too muchC.too manyD.many too( )14.—_______ there _______ two football matches here tomorrow? —Yes, there are.A.Is; /B.Are; /C.Is; going to beD.Are; going to be( )15.—Would you like to go swimming with me this afternoon?—______, but I have a lot of homework to do.A.I’d love toB.Yes, let’s goC.No, I won’tD.It doesn’t matter( )16.—Miss Chen teaches _______ English this term. —You’re lucky. ______ is a very good teacher.A.our; She; He; SheD.ours; He( )17.—Do you usually wash clothes at home?—Yes, although I think it’s _______, I have to help my mother.A.necessaryB.boringC.excitingD.interesting( )18.—Would you mind _______ in the classroom? —Sorry, I won’t do that again.A.not runningB.don’t runC.not to runD.to not run( )19.—Did Alice sleep well last night? —No, s he didn’t. She didn’t go to bed _______ 12 o’clock last night.A.afterB.whenC.untilD.if( )20.—What happened to Mike?—He had a stomachache. He began to work _______ having breakfast this morning.A.withB.ofC.fromD.without( )21.The girl is eight years old. She is _______ to go to school.A.old enoughB.young enoughC.too oldD.too young( )22.—How does Bob usually go to work? —He _______ take a bus, but now he is used to walking.edB.was used toed toD.is used to( )23.—How much did the new watch _______ your sister? —She _______ 350 yuan for it.A.cost; paidB.spend; costC.pay; costD.take; paid( )24.—Do you often help your cousin with his English? —No. He learns English _______.A. by himselfB.for himselfC.himselfD.on himself( )25.—He is often late for school, isn’t he?—_______ He always goes to school earlier than others.A.Yes, he is.B.No, he isn’t.C.Yes, of course.D.No, sometimes.( )26.—Would you please pass me today’s newspaper?—_______A.Yes, please.B.Here you are.C.You are welcome.D.Not at all.( )27.The new road is much _______ than before. Six cars can pass it at the same time.rgerB.widerC.fartherD.longer( )28.Suzhou is one of _______ most beautiful tourist cities and I be lieve I’ll come for _______ second time.A.the; aB.a; aC.the; theD.a; the( )29.We _____ play on this road. There is too much traffic.A.mustB.mustn’tC.needD.needn’t( )30.—Well, let’s go to visit the Ren’ai Park this Saturday.—That ____ great.A.feelsB.looksC.soundsD.smell答案:1-5DABCB 6-10 BCBDD 11-15 BBBDA 16-20 CBACA 21-25ACAAB 26-30ABAACPart Two( ) 1. One of the most famous ________ in China _______ Cheng Long.A. star, isB. stars, isC. stars, areD. star, are( ) 2.I don’t know ______organize the class meeting.A.I should howB. how I shouldC. how should ID.I how should( ) 3. My watch is broken. I don’t know how to make it ______. A. walk B. to walk C. work D. to work ( ) 4. I’m pleased _____hear that and I’m very pleased ____what you did.A. at, withB. with, toC. to, withD. to, for( ) 5. It’s very right _____you to help the old. A. to B. of C. for D. with( ) 6. His parents were worried that he ___ too much time chatting on line.A. spentB. costC. paidD. took( ) 7. Not only Jack but also I _____ interested in cooking. A. am B. is C. are D. be( ) 8. This kind of biscuits smells and sells .A. good; wellB. good; goodC. well; goodD. well; well( ) 9. Do you know he is a teacher or not? A. if B. that C. w hether D. what ( ) 10.There is much noise in this room I can’t hear anything.A. such; thatB. so; thatC. too; toD. enough; to( ) 11. My friend, Darren, is coming to visit us. I’m looking forward _______ him.A. meetB. meetingC. to meetD. to meeting( ) 12. I’m not sure if he ______ the exam. But he w ill be better if he _____ harder.A. passes; will workB. passes; worksC. will pass; will workD. will pass; works( ) 13. She asked me whose jacket A. is it B. it is C. it was D. was it( ) 14. you get up, the better. A. Earlier B. The early C. The earlier D. Early( ) 15. --Would you mind if I open the window? --A.Of course not.B. No, you can.C. Don’t do that.D. You’re welcome.( )16. It’s impolite in Japan. A. to eat noise B. to eat noisily C. eating noise D. eating noisily ( )17- You’ll look nice______this red coat? - No, it looks ugly_ _me.A. on; onB. in; inC. on; inD. in; on( )18- What’s your shirt_______? - Cotton. A.made from B. made of C. made in D. made into ( )19.The man_____a pair of glasses____our English teacher.A. with, areB. with, isC. wear, isD. wear, are( )20. The man ______ get up late ,but now he ______ getting up early.A. is used to , used toB. used to, is used toC. used to , used toD. is used to, is used to( )21.We should our plan at once after we make it together.A. take outB. put awayC. carry outD. give up( )22.We can’t afford_______this summer. A. travel B. travels C. traveling D. to travel( )23.Miss Wang is . She likes making friends with people. A. serious B. easy-going C. shy D. quiet ( )24. The girl plays the piano still _______ she used to.A. as beautiful asB. as beautifully asC. so beautiful asD. so beautifully as( )25. –Did he ____ the table tennis game yesterday? --Yes. He _______ his classmate, Zhang Qing.A. won; wonB. beat; beatC. win; beatD. beat; won( )26.____ he is only 8 years old, he knows more English than his father.A. ButB. ThoughC. SoD. Because( )27. To keep fit, doctors tell us not to eat ____ meat. A. too much B. much too C. too many D. many too ( )28.There _____ an important football game next Monday .A. wasB. will beC. is going toD. will have( )29. — The scarf is so beautiful .How much did it ? —I 98 yuan on it.A.pay ,costB. cost ,spentC. spend ,paidD. cost ,paid( )30. --- What did your mother say on the phone? --- She asked______.A.why did I fail the examB. why I failed the examC. why did you fail the examD. why I fail the exam( )31.He found very interesting to ride a horse on the farm. A. this B. that C. it D. it’s答案:1-5 BBCCC 6-10AAACB 11-15DDCCA 16-20BDBBB 21-25CDBBC 26-31BABBB CPart Three1. She prefers ______ basketball. A. play B. to playing C. playing D. plays2. — ______ do you play sports?— Once a week.A. How longB. How oftenC. How manyD. How much3. Lucy would like ______ skiing on Sunday. A. go B. goes C. to go D. going4. ______ makes your body strong. A. Runing B. Running C. To run D. Runner5. What language do you ______? A. say B. talk C. speak D. speaks6. — ______ — He is a little ill.A. What’s wrong with him?B. Is he ill?C. Isn’t he healthy?D. Is he in hospital?7. There is ______ on the table. A. so many water B. so much water C. so many apples D. so many students8. It’s important______. A. stay healthy B. stay health C. to stay healthy D. to stay health9. ______ more sports and you can ______ next year.A. Do, be healthB. Doing, healthC. Do, be healthyD. Doing, healthy10. The box is so heavy that he _______ life it _______.A. can, easilyB. can’t, easyC. can, easilyD. can’t, easily11. I’ll tell her when she ______ back. A. came B. will come C. comes D. is coming12. Who made Tom ______ so tired? A. feeling B. feels C. feel D. to feel13. He will be back ______ four days. A. after B. in C. from D. to14. ______ a cold winter morning, the girl died. A. On B. In C. At D. From15. They are _______ Beijing tomorrow.A. leave forB. will leave forC. leaving forD. going to leaving for16. Would you mind ______ here? A. don’t smoke B. don’t smoking C. not smoking D. not smoke17. There _______ a meeting this afternoon. A. is B. are C. will be D. will have18. She knows ______ about English. She only knows some of the letter.A. a lotB. littleC. muchD. many19. We shouldn’t ______ in class. A. talk B. speak C. say D. tell20. You ______ take off your coat on a cold morning.A . had better B. had better not C. didn’t have better D. had not better答案1-5 CBCBC 6-10 ABCCC 11-15DCBAC 16-20 CCBABPart Four1. — Must I finish my homework now? — No, you ______. A. may not B. mustn’t C. can’t D. need2. They each ______ a CD in their bags. A. have B. has C. is D. are3. It is a good time ______. A. sing B. to sing C. singing D. sang4. — ______ will you stay in America?— About two months.A. How manyB. How oftenC. How longD. How5. She’s good at _______. A. read B. reading C. to read D. reads6. —Mum, I’ m going to Ann’ s party this evening. —_______.A. Why notB. Have a good timeC. Come back earlyD. Good idea7. There is going to _______ a party in our school. A. have B. has C. is D. be8. If it ___ sunny tomorrow, I ____ the Great Wall.A. will be, climbB. is, climbingC. will, am climbingD. is, am going to climb9. —Would you like to go for a picnic with us?—_______, but I’m too busy.A. No, I can’tB. I’d likeC. Yes, I’d love toD. Why not10. The flowers smell ______. A. well B. badly C. good D. much well11. Eating ______ is not good for your health. A. too many B. much too C. enough too D. too much12. I am not good _______ English. Will you please help me ______ it?A. with, atB. at, toC. at, withD. with, with13. —What’s the man?— He ______ a teacher. A. maybe B. may is C. may be D. may14. What ______ you _______ when your mother came back?A are, doing B. were, doing C. did, do D. do, do15. While mother _______ some washing, I _______ a kite.A. did, makeB. was doing, madeC. was doing, was makingD. did, was making16.The Browns _______ to Beijing next week.A. is goingB. are goingC. are goD. is going to go17. On my way _______ home, I met an old friend of mine. A. to B. / C. at D. of18. Please _______ thanks _______ your parents. A. say, to B. say, for C. tell, to D. tell, for19. The lonely father became _______ because of the _______ children.A. angry, noisyB. angry, noisilyC. angyily, noisy,D. angrily, noisily20. I don’t know ________. A. what to do. B. what to do it. C. how to do. D. how to do with it.21. I want _______ 10 rooms _______ two single beds.A. book, forB. book, withC. to book, forD. to book, with22. Jane cooks _______ than Tom.A. more carefulB. more carefullyC. most carefulD. most carefully23. I want ________ like ________.A. to buy, yourB. to buy, yoursC. buy, yourD. buy, yours24. It’s necessary ________ us ________ study hard. A. for,/ B. of,/ C. for, to D. of, to25. The teacher said that the earth ________ around the sun. A. moved B. move C. will move D. moves 答案1-5 CABCA 6-10 BDDCC 11-15 DCCBC 16-20ABAAB 21-25DBBCD。

牛津译林版八年级英语下期末复习专练《选择题》(含答案)

牛津译林版八年级英语下期末复习专练《选择题》(含答案)

八年级英语下期末复习专练《选择题》1. One day, ______ UNICEF officer came to the poor mountain village. He wanted to dosomething to help ______ local people.A. a; 不填B. a; theC. an; 不填D. an; the2. People should avoid burning wheat stubble (秸秆), for it can __ lots of smoke and causesserious air pollution.A. protectB. preventC. provideD. produce3. ─ Any tips ______ us if we’re going to the UK?─ Well. For example, you should wait patiently if someone is ______ your way.A. to; onB. for; onC. to; inD. for; in4. ─ My father ______ drive me to school, but now I ______ riding bicycles.─ Great! That’s the way we should take to live a green life.A. used to; am used toB. used to; used toC. was used to; am used toD. was used to; used to5. It was brave ______ the boy ______ part in the Special Olympic World Games.A. of; takesB. of; to takeC. for; tookD. for; to take6. ─ John came first in the Maths test.─ ______. She works the hardest in our class.A. No pain, no gain.B. Practice makes perfect.C. The early bird catches the worm.D. Every dog has its day.7. ---You’d better not ________. You should show good manners.--- OK.I will queue for my turn ________.A. push in; politeB. carry on; politelyC. push in; politelyD. hand in; polite8. ---The ________ you wrote about the film is wonderful. ---Thanks.A. renewB. reviewC. recycleD. reuse9. I think our spacecraft(宇宙飞船) is ____slow ___carry large numbers ofpeople to Mars at present.A. so, thatB. such, thatC. too, toD. enough, to10. ---How long can I ________ the book?--- For two weeks. And you mustn’t ________ it to others.A. borrow; keepB. keep; lendC. keep; borrowD. borrow; lend11. Don’t ______ others too much. You should do things by yourself.A. agree withB. depend onC. think aboutD. look after12. —Which sport are you in at the, school sports meeting?—No decision yet. I think it _______ after discussing it with Mr Zhao.A. was decidedB. will be decidedC. will decideD. is decided13. A lot of money __________ at the charity show, but the cost of living __________ a lot, sowe still need to do much work to help the disabled people.A. was raised; has risenB. was raised; were raisedC. rose; has risenD. rose; were raised14. Not only the twins but also their cousin ____Japan for half a year, but _____ of them canspeak Japanese.A. has gone to; eitherB. has been in; eitherC. has been in; noneD. have been in; none15. —The secretary’s already on the way to the company, __________ she?— __________. She was badly hurt in the accident and sent to the hospital.A. has n’t; YesB. hasn’ t; NoC. isn’t; YesD. isn’t; No16. — Mrs. Liu, can I pass the final exam if I start working hard from now on?— Of course. __________.A. Better late than neverB. Practice makes perfectC. Actions speak louder than wordsD. Many hands make light work17. You can click on ______icon to take _______ online trip to European countries.A. an; anB. an; theC. the; anD. the; a18. The train to Beijing will leave at 8:30. We should reach the railway station ________.A. on timeB. in a timeC. at timesD. at a time19. I __________ you for a long time, Where _____________?A. haven’t seen; have you goneB. haven’t seen; have you beenC. didn’t see; have you beenD. didn’t see; have you gone20. It’s said that the old couple ___________ for fifty years.A. marriedB. got marriedC. has got marriedD. has been married21. — Have you ______ read the book Flags of our fathers—No, it’s so meaningful that I haven’t finished reading up it, _______.A. already; recentlyB. just; everC. ever; yetD. never; yet22. — Would you mind my________ here? —________. If you do that, you will be fined.A. to smoke; OKB. smoking; Certainly notC. smoking; Better notD. to smoke; Good idea23. — We will have a Reading Week this term.—Good idea. I think you need to decide _______ because a quiet place is important for reading.A. what to readB. who to read withC. when to readD. where to read24. The Stylistic Park _______ a football field, some basketball courts and other sports places.A. is made inB. is made fromC. is made byD. is made up of25. — Thanks for telling so much about your school! — ___________A. It’s my pleasureB. I’m glad you like itC. With pleasureD. You needn’t to say like that26.--- It is said that the government will build _______ international bank here.--- Do you believe _______ news?A. a; theB. the; /C. an; theD. an; a27. I went to _______ side of the road in order to avoid _______ him.A. another; to meetB. another; meetingC. the other; to meetD. the other; meeting28. If you don’t know _______ with your old clothes, you can send them to me.A. where to doB. what to doC. how to doD. which to do29. Please move the chair. It is _______.A. on my wayB. in my wayC. by the wayD. in some ways30. --- Where’s your father? --- He _____ Beijing. He ____ there since last month.A. has gone to; has goneB. has been to; has beenC. has gone to; has beenD. has been to; has gone31 ---You have dropped ____ "s" in the word "classical"!---Sorry, I forgot _____ letter "s" doubled.A.a, a,B. a ,theC. an ,theD. the, the32. Please give me _____on how to work out the problem.A. some advicesB. some adviceC. some suggestionD. an advice33. --- Where is Millie?---She _______ to New York on business. She __________ the airport at five in the morning.A. has gone, has left forB. has been, has left for;C. has gone; left forD. has been, left for34. – Did you enjoy yourself at the party? -- Yes. I’ve never been to one before?A. a more excitingB. the more excitedC. a more excitedD. the most exciting35. ---Were you sick after four hours’ journey on the coach?---Of course, I ___________ quickly as soon as it stopped.A. got it onB. got on itC. got it offD. got off it36. ---The reporter’s already back from Malaysia safely, __________ he?A. isB. isn’tC. hasD. hasn’t37. It ________ two years since we ________this school, we really like it.A. was, entered intoB. is, enteredC. has been, enteredD. B&C38. ---How pleasant ______ is to go fishing with my father!--- Yes, parents and children should spend more time together.A. thatB. heC. thisD. it39.--- Have you collected many foreign stamps recently?--- Y es. I have many foreign stamps American ones and French ones.A.likeB. such asC. for exampleD. Both A & B40.---_____did your uncle leave his hometown?--- He____for nearly twenty years.A.When; has leftB. When; has been awayC. How long; has leftD. How long; has been away41.He is a teacher with a lot of____. He often tells us many of his interesting ___ in Africa.A.experiences; experienceB. experience; experienceC. experience; experiencesD. experienced; experience42.The poor man lived in a small house, and he often feels .A.alone; lonely; lonelyB. lonely; alone; lonelyC. alone; alone; lonelyD. lonely; lonely; alone43.Jack Rose in 1998. That is to say, they _____for 15 years.A.got married with; have got marriedB. got married to; have marriedC. married; have been marriedD. married to; have been married44.--- Can you tell me how long ? --- Since you rang me just now.A.has the show begunB. has the show been onC. the show has been onD. the show has begun45.What changes________in your lives?A.have there hadB. has there beenC. have there beenD. has there had46.---_______, she is a good teacher but not a good mother.---Y es, I agree with you. She spends too much time working at school every day.A.By the wayB. In a wayC. In some waysD. In some way47.--- What’s your uncle?--- He a policeman, but now he is a businessman.A.is used to beingB. is used to beC. used to beD. used to being48.The main job of the support team is to the runners drinking water and food.A. protect; fromB. provide; forC. prevent; fromD. provide; with49. After working _____ with each other for months, they felt much _____ to eac h other that theybegan to share lunch together.A. closely, closerB. closely, closeC. close, closeD. close, closely50. ---What do you think of the show The Brain on Jiangsu TV?---Fantastic._____ is really smart _____ a 7-year-old boy to add up numbers so quickly.A. It; ofB. That; ofC. It; forD. That; for51. —When is the sports meeting __ every year?—It ____at the beginning of the new term.A.taken place; is heldB. held; takes placeC. taken place; holdsD. held; is taken place52.—It's selfish of our child share his toys with his friends.—So he is. We must tell him be so selfish.A. not to; don'tB. not to; not toC. don't; don'tD. not; not to53. ---I hear that the old man has given up_______.---Yes, he has already given_______.A. drinking; it upB. to drink; up itC. drinking; up itD. to drink; it up54. Russia, ______ European country, finished ______ second in Wuhan CISM Military WorldGames.A. a, theB. a, /C. /, theD. an, /55. Don’t try to do everything _____. As you know, we can’t burn the candle at ______.A.at times, both endsB. at times, both endC. at a time, both endD. at a time, both ends56. The coach gave Lily ___ useful advice that she ____to improve herself in a short time .A. such a, triedB. such, triedC. so, managedD. such, managed57. Nobody told us _______ .A. what to do itB. how to do itC. where to doD. when to do58.The radio is________ a strange signal. What’s wrong with it?A. giving upB. giving inC. giving outD. giving away59.The water _________is very serious in Tongyu Town now, please stop ______it.A.pollute, pollutionB.pollution, to polluteC.pollution, pollutingD.pollution,pollution60. The young man was seen_____ into a bank by a policeman.A. to breakB. breakC. breakingD. broken61.The milk in the fridge ________________. Don’t drink it.A. is smelled badB. smells badlyC. smells badD. is smelled badly62. Will the patient ______ when the doctor_______?A. operate; reachesB. operated; arrivesC. be operated on; arrivesD. be operated; gets to63.The energy from the sun and wind is very cheap and it will never __________.A. come outB. put outC. run outD. carry out64.____________ that there is another football match on the air this evening.A.It saysB. It was saidC. It is saidD. What was said65.—In fact, everyone can do something to __________ to our environment.—Yes? I don’t think we should throw away the waste ________.A. make difference; carefullyB. make differences; carefulC. make a difference; carelesslyD. make a few differences; careless66. —To avoid too many natural resources ,what should we do?— We should stop people_____too many trees..A. waste ; to cut downB. wasting ; to cut downC. wasting ; cutting downD. to waste ; to cut down67. UNICE was ______in 1946. It works to help children live a better life.A. set upB. put upC. picked upD. turned up68.— I hear the teacher has chosen five of us as volunteers. You , right?— Yes. Some of us are chosen, Tom, Jim and me.A. have included; includingB. are included; includingC. are included; includeD. have included; include69.. —She’s told to write the report instead of you, ?— Yes. She has to hand it in tomorrow.A. isn’t sheB. doesn’t sheC. hasn’t sheD. is she70.At last they ________________ take a plane to Beijing.A. made their mind toB. made up their minds toC. have decidedD. make a decision71. The ship Eastern Star sank (沉没) in the water on June 1st, 2015. Over 400 people ______ died.How sad!A. in boardB. on boardC. in the boardD. on the board72.—Boys and girls, have you finished drawing the pictures? —Yes, they________ a moment ago.A. have finishedB. were finished C .are finished D. finished73. You may go fishing if your work_______ .A is doneB will be doneC has doneD have done74. These kinds of CD---ROMS______ in that shop over there. They _____ well.A are sold, are soldB are sold, sellC sell, sellD sell, are sold75. Three years since we came to America. Sixty percent of us our parents very much.A. have passed, missB. has passed, missesC. has passed, missD. have passed, misses76. ---Mum, I want to have some milk.----There is none . What about some orange juice?A. leavingB. to leaveC. leftD. leave77.The disease___ all around the country, something must__________ to prevent it..A. has spread; be doneB. was spread; be doneC. spread; doD. is spread; do78.— All of us thought ______ dangerous for children to play with fire.—Yes. It’s important ________ to be safe all the time.A. it is; of themB. it; for themC. that is; of themD. that; for them79.Keep the door __________, my _________ friend.A. close; closedB. close; closeC. closed; closedD. closed; close80.—The volunteers really provided the athletes with support.—Exactly. __________ they helped make the event!A. What a great successB. What great successC. How a great successD. How great success81.---Why do they hold “Walk for Children”?---The purpose is ______ for the charity called UNICEF.A. to donate moneyB. raising moneyC. to raise moneyD. donating money82. LiHai finished in the event hard work.A. fourth ;byB. fourth; throughC. the fourth; byD. the fourth; through83.It was a hard time for those students because of losing the game, but they did not ______ hope.A. give upB. give offC. give inD. give out84.She was busy ________ for her exam and too busy ________ with me at that time.A. preparing; to talkingB. to prepare; talkingC. preparing, talkedD. preparing; to talk85.Mr. Jiang, as ___ elderly man, took part in the Special Games for ___ elderly, and won ____first prize in the race.A. a; the; theB. an; the; theC. an; an; theD. the; an; /参考答案:1--20 BDDAB ACBCB BBACD ACABD21--40 CCDDA CDBBC CBCAD ABDDB41--60 CBCCA CCDAA BBABD DBCCA61--85 CCCBC CABAB BBABC CABDA CBADB亲爱的读者:感谢你的阅读,祝您生活愉快。

八下语文文学常识选择题

八下语文文学常识选择题

八下语文文学常识选择题
好的,以下是一些八下语文文学常识选择题,希望对您有所帮助:
1. 下列哪个作品不是鲁迅的作品?
A. 《阿 Q 正传》
B. 《狂人日记》
C. 《朝花夕拾》
D. 《故事新编》
答案:D。

2. 下列哪个国家是诺贝尔文学奖的创设国?
A. 英国
B. 法国
C. 德国
D. 瑞典
答案:D。

3. 下列哪个作品与《西游记》是同一时期的?
A. 《水浒传》
B. 《三国演义》
C. 《红楼梦》
D. 《儒林外史》
答案:C。

4. 下列哪个诗人不是唐代著名诗人?
A. 李白
B. 杜甫
C. 白居易
D. 苏轼
答案:D。

5. 下列哪个节气不是春节?
A. 雨水
B. 惊蛰
C. 清明
D. 冬至
答案:B。

6. 下列哪个作家不是俄国文学巨匠?
A. 契诃夫
B. 托尔斯泰
C. 普希金
D. 果戈里
答案:D。

7. 下列哪个乐器不是中国传统乐器?
A. 小提琴
B. 二胡
C. 笛子
D. 鼓
答案:B。

8. 下列哪个朝代不是中国古代的高峰期?
A. 汉朝
B. 唐朝
C. 宋朝
D. 明朝
答案:D。

以上是一些八下语文文学常识选择题,希望对您有所帮助。

如果您有其他问题或需要更多帮助,请随时提问。

2020-2021学年人教英语八年级下册Unit5 单项选择专练(含答案)

2020-2021学年人教英语八年级下册Unit5 单项选择专练(含答案)

人教版八年级英语下册Unit5 单项选择专练一、单项选择题( )1. Although Ben was ______ my opinion, he didn’t come up with his own.A. forB. onC. againstD. in( )2. — I called you last night, but nobody answered. Where were you then?— Oh, I________my pet dog in my yard.A.walked B.was walking C.am walking D.will walk( )3. After the rainstorm, you can see ______ trees everywhere.A. fallB. fallingC. fallenD. fell( )4.— Why were you all wet?—It rained _______ and I didn’t take my umbrella.A. hardlyB. slowlyC. comfortablyD. suddenly ( )5.—Why didn’t you come to my birthday party yesterday?—Sorry, I was so busy that I _______ forgot it.A. partlyB. completelyC. recentlyD. quietly( )6. It should be one of the most important events _______ for Americans.A. in historyB. in timeC. in silenceD. in style ( )7. —The telephone is ringing. Please ______, Kate. — OK, Mom.A. pick up itB. pick it upC. give up itD. give it up ( )8. My brother was so tired. He _____ as soon as he lay in bed.A. fell downB. feel sleepC. fell sleepD. fell asleep ( )9. I’m sure that Tom will _____ the match because nobody can _______ him.A. win; winB. win; beatC. beat; winD. beat; beat ( )10. —Why are you late for class? — Because the alarm clock didn't _______ this morning.A. cut offB. put offC. go offD. turn off( )11.Mrs. King put a coat_____ the sleeping girl to keep her warm.A. overB. withC. behindD. beside( )12. —How ________!There are no workers in the bank.—It’s a self­service bank which provides 24­hour self­service for customers.A. boringB. terribleC. strangeD. delicious( )13. Today,more and more people begin to ______ the importance of saving water. A.waste B. realize C.control D.cause ( )14.The important event will have _______ to most Americans.A. meaningB. problemC. informationD. question ( )15. George is _______ his way _______ work when I met him.A. taking ;ofB. making ;ofC. taking ;toD. making ;to ( )16.—Miss Brown, I have some difficulty_______the passage.—Remember________it three or four times at least.A. to understand; readingB. understanding; readingC. understanding; to readD. to understand; to read( )17. All the students were sleeping _______they heard a man _______“help”.A. when; shoutingB. while; to shoutC. when; shoutedD. while; shouted ( )18. —Why do you always sleep ____?—Because I’m afraid of the dark.A.by yourselfB. with the door openC. with the window openD. with the light on( )19.—Wang Bin can speak English very well.—________ He couldn't even say a word a week ago.A.Why not? B.You're kidding. C.Good idea. D.Sounds great ( )20.Do you remember _____when terrorists took down the World Trade Center on September 11?A. what are you dingB. what you are doingC. what were you doingD. what you were doing( )21.—Keep quiet, son! I need complete __________ when I'm working. —Sorry, Dad. I won’t make any noise again.A .trustB .silenceC .controlD .strength ( )22.—__________ did the rainstorm come?—While we __________ a physics lesson yesterday.A .When; have hadB .While; are havingC .When; were havingD .While; have( )23.Peter with his classmates __________ for the bus when the earthquake happened.A .is waitingB .was waitingC .are waitingD .were waiting ( )24.Ben was helping his mother when the rain began to beat heavily ___the windows.A .againstB .acrossC .aboveD .below( )25.—Ana, how does the dress look on me?—To tell you the __________ , it doesn’t fit you well.A .tradeB .trustC .truthD .treat( )26.Students in Grade Nine __________ a maths exam at this time yesterday. A .take B .are taking C .were taking D .have taken ( )27.— I saw Mr. King in the school at ten o'clock last night.— That's impossible. He _______ a movie with me then.A .watchesB .watchedC .was watchingD .is watching( )28.—I saw your light still on at 11 o'clock last night.—Oh. I __________ an interesting talk show at that time.A .watchB .watchedC .am watchingD .was watching( )29.—Did you notice a man passing by? —No, I __________ on the phone.A .a talkB .am talkingC .was talkingD .talked( )30.Lucy __________ her friends the whole morning, but they didn't show up.A .expectsB .will expectC .is expectingD .was expecting ( )31.While Nick_______ CCTV News, someone knocked at the door.A .watchedB .was watchingC .watchD .watch( )32.—Did you hear the strange noise next door at around 10 o’clock last night?—No, I _______my favorite music in my bedroom.A .listB .listened toC .was listening to D.am listening to ( )33.Sorry, I didn’t see you, because I_______ a picture.A .drawB .drewC .was drawingD .have drawn ( )34—Jim, could you please answer the question?—Sorry, I_______. Could you say it again?A .wasn’t listeningB .don’t listenC .am not listeningD .won’t listen ( )35.—I went to your office at 9: 00 yesterday morning, but you were not in. —Sorry, I_______ with the manager in the meeting room at that time.A .am talkingB .was talkingC .were talkingD .have talked( )36. Don't ________ the chance when you can catch it,or you will regret. A.guess B.miss C.remember D.allow( )37.________ we came back to school,Dale was playing the violin.A.When B.While C.Until D.After( )38. After a serious illness,he finally _____ the importance of health.A.realized B.meant C.added D.impressed( )39.—Were you at home at 9:00 last night?—Yes,I ________ at that time. A.take a shower B.took a showerC.was taking a shower D.am taking a shower( )40.—Sally,I'm going to drive all the way to Tibet from Nanjing by myself! —What?________!A.No problem B.Good idea C.Have a good time D.You're kidding ( )41.(2020四川甘孜州中考)I ______a math problem with Joe when Mike called me up.A. have discussedB. discussedC. was discussing( )42.(2020江西南昌二中期中)—I found a good job in the big city_________. —How lucky you are!A. completelyB. loudlyC. differentlyD. recently( )43.(2019安徽阜阳太和三校联考)After we watched TV yesterday, we knew the_________ about the traffic accident.A. planB. truthC. decisionD. opinion( )44.(2020湖南株洲中考)The last BeiDou navigation satellite(北斗卫星导航)_________ successfully last month.A. was sent upB. sent upC. has sent up( )45.(2020独家原创试题)—You are the same age, but your hobbies and thoughts are _________ different. —You are right.A. heavilyB. carefullyC. completelyD. happily( )46.(2019湖北襄阳中考)—How strange!You sit in your room _________ for a long time, Li Ming.—I just want to be quiet for a while. I’m sorry, Dad. I failed the test again.A.in silenceB.in personC.in publicD.in fact( )47.— Anna, how does the dress look on me?— To tell you the _______ , it doesn't fit you well.A .tradeB .trustC .truthD .treat( )48.— Do you know the man who is standing _______ the door?—Sorry, I don’t know.A .onB .inC .withD .against( )49.— What' s the weather like in summer here ?—It’s hot. Sometimes it rains _______ .A .clearlyB .heavilyC .carefullyD .hardly( )50.— How strange! You sit in your room _______ for a long time, Li Ming.— I just want to be quiet for a while. I'm sorry, Dad. I failed the test again.A .in silenceB .in personC .in publicD .in fact( )51.— You look worried. What's wrong?—I suddenly ______ my homework is still at home. I have to go back quickly for it.A .hopeB .loseC .realizeD .offer( )52.— The wind is so str ong . I’m afraid we can’t go for the picnic tomorrow.— Don' t worry. The radio says it will _______ in six hours.A .put downB .turn downC .die downD .get down( )53.Mr. Black walked around and offered help _______ we were doing an experiment(实验).A .whileB .althoughC .untilD .unless( )54.If you have trouble _______along with your classmates, you can ask me for help.A .getB .gettingC .to getD .gets( )55.— I saw Mr. King in the school at ten o'clock last night.— That's impossible. He _______ a movie with me then.A .watchesB .watchedC .was watchingD .is watching( )56.— My computer has caught a virus(病毒)and it has gone wrong. — _______ .A .I'm sorry to hear thatB .Don't mention itC .It doesn't matterD .I’m sure it can work参考答案一、1-5 CBCDB 6-10 ABDBC 11-15 ACBAD16-20 CADBD 21--25BCBAC 26---30CCDCD31-35BCCAB 36--40BAACD 41--45CDBAC46--50ACDBA 51--55CCABC 56A。

人教版八下英语单项选择题及答案

人教版八下英语单项选择题及答案

窑火真传铸瓷魂——解析定窑(二)上一篇文章从定窑的发现历史、外销、工艺、装饰特点等方面对定窑进行了解析,本篇文章将重点解析定窑的鉴定方法,才疏学浅,不足之处还望共同交流学习。

定窑的釉色品种:定窑以白色为主,另外还有黑定、绿定、紫定(绛定)、酱定、外酱内白等品种,其中黑定、紫定,加金彩花纹尤为珍贵。

宋定窑金彩大盘黑定主要是仿建阳窑的乌金釉,这和宋代斗茶兴盛有关。

黑定产品胎质洁白,造型规整,器壁较薄,釉面匀净,乌黑发亮,在高倍放大镜下,釉中闪金色气泡。

定窑黑釉盏绿定,是仿磁州窑系辽绿中翡翠绿釉产品,其特点多采用印花工艺,胎质洁白,釉色鲜艳沉稳,选用绿釉中的大绿色,印花凸印,纹饰细腻清晰,绿定在定窑中属罕见品种。

绿定绿釉划花净瓶紫定又称绛定,并非紫色,是以铁为发色剂的一种柿红色的高温釉,紫定中釉料为高钙质釉,还含有一定数量的锰,为了增加其釉中的钙含量,窑工还采集当地山区生长的一种蕨类植物,晒干烧灰加入釉中,所以烧成后紫定釉面多有流淌现象,其釉色晶莹透彻,富有光泽,光可鉴人,故苏东坡有“定州花瓷琢如玉”的赞誉。

北宋紫(绛)定棱口碗酱定,釉料属低钙质,并含有一定数量的乳浊剂,烧出来的产品,尽管有深浅、偏红、偏褐、偏黄之分,但都有一个共同的特征,即釉色含蓄不透,由于釉中含钙量较低,釉在高温下较为稳定,流动性小,故烧成后釉面平静,没有流淌现象。

定窑酱定鹦鹉形壶定窑的鉴定特征:定窑在唐末五代受到邢窑白瓷工艺影响,技艺得到很大提高,而且产品逐渐代替邢窑市场,在五代至北宋早期一度被皇室指定为贡瓷。

综合定窑特点,可归纳为以下几个阶段:唐末至五代,定窑以仿金银器造型光素大方为主,胎体细白,无化妆土,釉水洁白,采用仰烧即一匣一烧工艺,故成器口部有釉,足底无釉。

北宋早期多烧碗、盘、孩儿枕、如意枕、银锭形枕、梅瓶、长颈瓶、动物人物造型、文房砚滴等造型,纹饰采用刻花、划花并辅以蓖纹衬托装饰。

此时产品已开始使用一匣多层覆烧工艺,芒口金装满釉裹足,竹丝刷痕,泪痕等定窑烧造典型特征,此时釉色依然为白色。

政治八下第三课练习题

政治八下第三课练习题

政治八下第三课练习题一、选择题A. 人民代表大会制度B. 民族区域自治制度C. 基层群众自治制度D. 政治协商制度A. 国务院B. 最高人民法院C. 最高人民检察院D. 全国人民代表大会A. 全国人民代表大会B. 国务院总理C. 国务院各部委D. 地方各级人民政府A. 最高人民检察院B. 最高人民法院C. 地方各级人民法院D. 各级人民检察院A. 最高人民法院B. 最高人民检察院C. 地方各级人民检察院D. 各级人民法院A. 人民代表大会制度B. 政治协商制度C. 基层群众自治制度D. 民族区域自治制度A. 民族平等B. 民族团结C. 民族自治D. 民族繁荣A. 村(居)民委员会B. 企事业单位职工代表大会C. 城市居民委员会D. 农村村民委员会二、填空题9. 我国的国家机构是按照________的组织体系建立起来的。

10. 全国人民代表大会是我国的________,地位最高,权力最大。

11. 国务院是我国的________,是最高国家权力机关的执行机关。

12. 最高人民法院是我国的________,负责监督地方各级人民法院的审判工作。

13. 最高人民检察院是我国的________,负责监督地方各级人民检察院的检察工作。

14. 基层群众自治制度是________和________的基础,也是社会主义民主政治建设的基础。

15. 民族区域自治制度是在国家统一领导下,各少数民族________的地方实行区域自治,设立自治机关,行使自治权的制度。

三、判断题16. 人民代表大会制度是我国的根本政治制度,具有最高的法律地位。

()17. 国务院是最高国家权力机关,拥有最高立法权。

()18. 最高人民法院和最高人民检察院是我国的最高审判机关和最高检察机关,分别负责审判和检察工作。

()19. 基层群众自治制度是我国的基本民主制度,体现了人民民主专政的本质。

()20. 民族区域自治制度是我国的一项基本政治制度,有利于维护国家统一和民族团结。

  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

初二英语(下)选择题专练( )1.There a little oil in the bottle. A. are B. is C. aren’t D. am( )2.--In England, people eat a lot of beef. -- .We eat a lit of beef, too.A. So do theyB. So they doC. So we doD. So do we( )3.—Do you agree Jim ? A. with B. on C. to D. over( )4.What’s with you ? A. matter B. the wrong C. the matter D. the mater ( )5.Would you like to sit the table the window? A. on…near B. at…byC. on…by D. near…by ( )6.Let’s ask the policeman. He know. A. can B. may C. will D. shall( )7.I bought an English book my way . A. in, home B. in, to home C. on, home D. on, to home ( )8.You seem about him. A. worried B. worrying C. worry D. to worried( )9.Both of the books are good.If you let me have one, is OK A. neither B. either C. both D. all. ( )10. Help yourself some fish. A. to B. to have C. have D. for( )11.I want to eat. A. something English B. English something C. English anythingD. Anything English ( )12.May I your order now? A. take B. bring C. get D. took( )13. the end of the road, you’ll find a shop in front of you.A. On, theB. At, /C. In, /D. At, the( )14.The zoo is very . You’d better catch a bus. A. near B. far C. long D. short ( )15. is the way the cinema? A. What, of B. Where, to C. Which, to D. How, of ( )16.My home isn’t far from the school. It’s about .A. forty minutes’s walkB. forty minute’s walkC. forty minutes walkD. forty minutes’ walk ( )17. of his parents is at work. A. Neither B. All C. Both D. Some( )18.This one is not good, and that one is even . A. bad B. worse C. worst D. badly ( )19.You go with us right now. A. need B. should C. would D. could( )20.We won’t go to the Great Wall if it tomorrow. A. snows B. snowedC. snow D. will snow( )21.We must wash our hands we have meals. A. when B. before C. after D. because ( )22. “Stop and listen to me carefully.” Said the teacher. A. to talk B. talks C. talking D. talk( )23.He the bus, sat down and bought a ticket. A. got in B. got out C. got on D. got off ( )24.I’m sorry I can’t go fishing with you. I have a pain my right arm.A. inB. onC. with C. of( )25.The chicken smells . A. well B. badly C. hard D. good( )26.The farmers are busy vegetables. A. grow B. growing C. grew D. grows ( )27.Don’t be late. You be there on time. A. must B. can C. may D. mustn’t ( )28.Don’t worry. They always enjoys at the party. A. them B. their C. themselves D. theirs ( )29.—Thank you for having us. We had a very good time today. —. Bye.A. No, thank youB. I’m afraid notC. You shouldn’t say thatD. It was my pleasure ( )30.—May I smoke here?—.A.Yes, you mustB.Yes, you pleaseC.No,you needn’tD. No, you’d better not( )31.—Did the children go to the farm with the apple picking?—Yes, the first day they went to the farm and the second day went to the nearest farm.A. farB. fartherC. farthestD. farest( )32.—Can you see in the classroom? —No, I’m afraid not. Today’s a holiday. It’s Sunday.A. nobodyB. anybodyC. nothingD. something( )33. —Where’s Jim? —He went to Beijing last week. He be back until next month.A. didn’tB. won’tC. wasn’tD. doesn’t( )34. —Look! The woman in the lake is for help. She can’t swim.A. smilingB. laughingC. cryingD. saying( )35. —Is everything OK? —Yes, we want the meeting to start .A. in timeB. at timesC. on timeD. of time( )36.I can buy because I have no money. A. anything B. something C. nothing D. everything ( )37. —Where’s my football? —It must be in the room.A. anywhereB. somewhereC. any whereD. some where( )38.I feel thirsty. Please me something to drink. A. take B. bring C. carry D. help ( )39.It’s a secret. We’d better tell her. A. not B. no C. don’t D. won’t( )40.The little boy is young look after himself. A. too, not to B. to, too C. too, to D. very, to ( )41. —Mum, where’s my blue sweater? I can’t find it anywhere.—Don’t worry. You’ll find it somewhere.A. Soon or lateB. Sooner or laterC. Soon and lateD. Sooner and later( )42. —Is all the food there? —No, there’s nothing. The monkeys all the food.A. ate upB. ate outC. eat upD. eat out( )43. —Oh, the monkey have our picnic basket. —Quick! Let’s before they eat the food.A. take it awayB. get it backC. take away itD. get away it( )44. —Daddy, a dog, a dog is coming! —You are a big boy now. Don’t . TommyA. afraidB. worryC. be afraidD. be worried( )45. —How beautiful your school is! —Yes, our school is what it was three years ago!A. any moreB. not moreC. any longerD. no longer( )46.In the evening I told him story. A. my all B. the all C. whole my D. my whole ( )47.She said she would go there. A. not…more B. not…any more C. no more D. not…longer ( )48.We got up early, we didn’t catch the train. A. and B. so C. but D. then ( )49.He the boy English for an hour every day.A. keep, readingB. kept, to readC. keeps, readingD. keeps, to read( )50.I the picture three days ago. A. finish drawing B. finished drawing C. finished draw ( )51.The boy a face in class. All children . A. make, laugh B. makes, laughs C. made, laughed ( )52.Our country becomes . A. good and good B. well and well C. better and better ( )53.She was hungry and she stopped something. A. eating B. eats C. to eat D. having ( )54.Don’t turn the radio, please. My father is now.A. on, asleepB. on, sleepC. off, sleepingD. off, slept( )55.How did Ling Feng make the baby crying? A. stop B. to stopping C. stopping D. to stop ( )56.How old is this little baby? . A. It is only one little month oldB. She is only one monthsC. He is only one month oldD. It’s only one month( )57.Igot up late. I go to school in a hurry. A. have B. have to C. has D. had to ( )58.He his pen at home. He wanted to borrow one. A. leave B. left C. forgets D. forget ( )59.You’d better your coat you. It’s cold there.A. bring…forB. take…forC. take… withD. bring… with( )60.I told him run in the street. It was dangerous. A. doesn’t B. not C. didn’t D. not to ( )61.The film is interesting, I don’t like it. A. or B. but C. and D. so( )62.After that he sang . A. not any more B. not more C. no more D. no again ( )63.Are you the 100-meter race? A. for B. in C. at D. to( )64.Wu Ping dropped his stick. He stopped it. A. get B. to get C. getting D. gets ( )65.Who won the race? A. girl’s 100 meter B. girl’s 100-meters C. girls’ 100- meter ( )66.It was difficult the boy’s relay. A. win B. winning C. to win D. won( )67.—Who taught to write? —He learnt all by .A. him, him B. his, himself C. his, him D. him, himself ( )68.He is tall I. A. a little, than B. more, than C. as, as D. so, as( )69. she swim when she was nine years old? A. Can B. Could C. Can’t D. If ( )70.He two balls from the top of the building. A. jumped B. dropped C. passed D. fell ( )71.He and his parents teachers in the same middle school. A. all are B. are all C. both are D. are both ( )72.He tries to study hard and catch up his classmates. A. to B. on C. in D. with ( )73.He was very tired but he went on machines.A. mendingB. mendC. to mend D. mended ( )74.They passed the sticks the next runners the same time.A. on, to, inB. on, in, toC. on, to, atD. in, to, at( )75.Why didn’t Mr. Fat enjoy ?Can you the answer?A. himself, find outB. himself, findC. him, look forD. very much, find out( )76. —Would you please look out of the window? —Sorry, I do it again.A. don’t…won’tB. not…won’tC. not to…mustn’tD. won’t…can’t( )77.He found very difficult to learn English . A. it, good B. that, good C. it, well D. that, well ( )78.What you from seven to nine this morning? A. did, to B. do, do C. are, doing D. were, doing ( )79. —Why was Tom’s mother angry Tom? —Because he couldn’t pass the math exam.A. withB. atC. toD. for( )80. —Did she sing well? —Yes, we often heard her in the next room.A. singB. to singC. sangD. sings( )81. —English is very important now. —You must try English well.A. learningB. to learnC. learnD. learned( )82.They supper when I on the door. A. are having…are knockingB. had…were knockingC. are going to have…knockedD. were having…knocked ( )83.Brian is good at Chinese. He several hours books about it every day.A. spend…readingB. spent…readC. spends…readingD. spends… to read( )84. elephant is much heavier than sheep. A. A…a B. An, a C. The, the D. /, / ( )85.Do you remember name of cinema? A. the…the B. the…a C. a …the D. /, / ( )86. —Do you know what interested ? —I’m not sure.A. is he…inB. he is…withC. is he…withD. he is…in( )87. —What did you buy your mother for Mother’s Day? —I bought her a pair of shoes.A. forB. toC. withD. /( )88.Bob is much younger than Mike. But he is as as Mike. A. tall B. taller C. much taller ( )89.Can you make them to get on each other?A. decide…with wellB. to decide…well withC. decides…with wellD. decide…well with ( )90. —I’m sorry to trouble you. A. It doesn’t matter B. All right C. No. D. You’re right ( )91. —Are you interested in maths or history, Mike? —. I prefer physics.A. BothB. EitherC. NeitherD. Nothing( )92.We TV at midnight when our uncle came in.A. are watchingB. watchedC. were watchingD. watch( )93.Iwant to know . A. why doesn’t he give up smoking B. why does he smoke a lotC. why he doesn’t give up smokingD. why does he give up smoking( )94.Would you please drop your shoes on the floor during the night?A. not toB. notC. don’tD. never to( )95.I’m hungry, mum. But there is food in the fridge. A. a few B. a little C. little D. any ( )96. —May I watch TV before I finish the letter? —No, you .A. write, don’tB. wrote, needn’tC. writing, won’tD. writing, mustn’t( )97. —Which film are you going to see?—There’s nothing good at the moment. .Would you like to go to a concert?A. Let’ do something elseB. Let’s go to buy the ticketsC. Let’s go there right awayD. Let’s go to buy some DVDs( )98. —How long does it take you to go to your school? —About fifteen walk.A. minuteB. minutesC. minute’sD. minutes’( )99.Betty Smith is not married yet, I think, for people call her .A. Mrs. SmithB. Miss BettyC. Mr. SmithD. Miss Smith( )100. —How are you this morning? —. A. Yes, I’m fine. B. It’s fine this morning.C. How are you, Tom.D. Not very well. I have a pain in my head.( )101—When is Bob’s birthday?. —November 21st, the same day .A. to youB. as yoursC. with mineD. like me( )102.The teacher thought he would try to make the students harder.A. workB. workingC. workedD. to work( )103.Which of these inventions is useful of all? A. the second B. the second most C. much more ( )104.At the end of the last lap, Lily and Susan were .A. neck to neckB. neck for neckC. neck and neckD. neck by neck( )105. we’re having today!A. What a fine weatherB. How fine the weatherC. How fine weatherD. What fine weather ( )106. —How carefully you are writing! —.A. Don’t mention itB. Not very beautifulC. It’s kind of you to say soD. That’s not true ( )107. —Don’t read in the sun. —No, I . A. mustn’t B. don’t C. won’t D. can’t ( )108.Will you please it yourself. A. don’t do B. not to do C. not do D. don’t to do ( )109.I have to stop and have a rest five minutes. A. every B. each C. other D. all ( )110.Wait for a moment, I’ll give you to eat.A. something differentB. nothing differentC. different somethingD. different nothing ( )111. Yesterday I saw a man on the road. A. lay B. was laying C. lying D. lie( )112.He hurried to get the box. A. of B. off C. at D. on( )113. —What happened to Mary’s brother? —He off when he a motor bike.A. was, falling, rodeB. fell, was ridingC. falls, is ridingD. was falling, was riding ( )114.It was very kind you my son to the hospital.A. of, to takeB. for, to takeC. of, bringingD. for, to bring( )115.The students saw the accident near the gate yesterday.A. to happenB. happenedC. happensD. happen( )116.He looks today than yesterday. A. more tired B. tireder C. most tired D. much tired ( )117. both enjoy fishing on Sunday. A. Wang B. Wangs C. The Wang D. The Wangs ( )118.She went to the hospital as quickly as she . A. could B. walked C. can D. did( )119.You’d better the book.. bad book it is!A. not read, HowB. not to read, What aC. not read, WhatD. not read, What a ( )120. a pair of glasses the nose the teacher came.A. With, onB. Wearing, overC. Having, inD. Putting, on参考答案:1-5 BDACB 6-10 BCABA11-15 AABBC 16-20 DABBA21-25 BCCAD 26-30 BACDD31-35 CBBCC 36-40 CBBAC41-45 BABCD 46-50 DCCCB51-55 CCCAA 56-60 CDBCD61-65 BCBBC 66-70 CDCBB71-75 BDACA 76-80 BCDAA81-85 BDCBA 86-90 DAADA91-95 CCCBC 96-100 DADDD101-105 BABCD 106-110 CCCAA111-115 CBBAD 116-120 ADADA。

相关文档
最新文档