8A期中考试复习课件

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8A Unit 3 Computer期中复习资料

8A Unit 3 Computer期中复习资料

8A Unit 3 Computer期中复习资料( )1. — I want to be a musician in the future. What about you?—I want to work as a scientist to stop the Earth from being polluted. [单选题] *A.haveB. be(正确答案)C. get( )2. — What do you think of this flat?—I’m afraid that I can’t buy it because it’s expensive. [单选题] *A.not cheap(正确答案)B.not excellentC. not different( )3. — The boy is so young, but he can use the remote control to operate the toy car well. [单选题] *A.sellB.tidyC. control(正确答案)( )4. — I look forward to seeing my uncle and aunt again.—Your dream will come true because they will work here two years later. [单选题] *A.hope to see(正确答案)B. hate to seeC. agree to see( )5.— The computer inside this machine is tiny. You won’t see it if you aren’t careful. —Yes. I didn’t find it just now. [单选题] *A.very largeB. very small(正确答案)C. very long( )6. — Did you hear the strange sound outside just now, Judy?— No. I was busy doing my homework, so I was unaware of it. [单选题] *A.didn’t thinkB. didn’t realize(正确答案)C. didn’t imagine( )7.— Excuse me. W hat’s the price of the black Mi Band?— 79 yuan. You can try it on. [单选题] *A.How much is(正确答案)B. How many isC. How often is( )8.— There are some beautiful flowers in the new park.— In addition, trees from foreign countries are planted in it. [单选题] *A.Besides(正确答案)B. HoweverC. Instead( )9.—What’s this, Josh? It looks like a pencil.— You can use it to write on your iPad. With it, you don’t have to ____. [单选题] *A.type(正确答案)B. drawC. listen( )10.— Tu Youyou and her team have done a lot for human beings.—That’s true. They often have smart ideas inside their ____. [单选题] *A.eyesB. pocketsC. brains(正确答案)( )11.— Angelique Kerber did well in the tennis game last week.— She is one of the most ______ tennis players in the world. Many people like her. [单选题] *A.differentB. popular(正确答案)C. foolish( )12.— Who do you prefer, Iron Man or Captain America?— I don’t want to _____ them. Both of them are my heroes. [单选题] *pare(正确答案)B. checkC. change( )13. Our lives are different after the invention of computers. Can you tell me how computers_________ our lives a few years ago? [单选题] *A.change(正确答案)B. operateC. depend( )14. —You’re a green hand, so please drive at a slow___________. [单选题] *A.numberB. speed(正确答案)C. decision( )15. — You said you wanted to buy a mobile phone on the Internet. Did you place a (n) _________?—No. I don’t know what kind of mobile phone I should buy. [单选题] *A.order(正确答案)B. gramC. model1. Planes can travel ___________ a faster speed than trains. [填空题] *空1答案:at2. _________ addition, computers can do important jobs like operating railways and flying planes and spaceships. [填空题] *空1答案:In3. ________ computers, people can send e-mails to their friends in a short time. [填空题] *空1答案:With4. My father was born in ___________1950s. [填空题] *空1答案:the5. I was aware ______ my mother’s anger and I admitted my fault. [填空题] *空1答案:of6. My mother never compares me ____________my brother. [填空题] *空1答案:with7. He bought this computer _______ a high price. [填空题] *空1答案:at8. My grandfather was born _________ the 1920s. [填空题] *空1答案:in9. We can type and draw things ___________computers. They are useful. [填空题] *空1答案:with10. He goes ________a walk with his parents every afternoon. [填空题] *_________________________________(答案:for)1. He uses the computer __________ (look) up information. [填空题] *空1答案:to look2. Whether you can achieve good grades __________ (depend) on how hard you work. [填空题] *空1答案:depends3. I _______________ (realize) that I was wrong after talking with my teacher. [填空题] *空1答案:realized4. Computers are becoming smaller and smaller, but more and__________________ (importance). [填空题] *空1答案:more important5. He didn’t hear us, so he was _____________ (aware) of the danger ahead. [填空题] *空1答案:unaware6. Inventions change our _____________(life) in many ways. [填空题] *空1答案:lives7. The teacher ordered the students _______________(sit) straight. [填空题] *空1答案:to sit8. The doctor is _______________ (operation) on his leg. [填空题] *空1答案:operating9. Who did_______________(bad) in the 100-metre race, Jim or Tim? [填空题] *空1答案:worse10. This cat is much_____________ (fat) than that one. [填空题] *空1答案:fatter11. Tom does a better job at_________________ (calculate) than Jack. [填空题] *空1答案:calculating12. This kind of material is ______________(tiny) than the other one. I can hardly see it. [填空题] *空1答案:tinier13. Which ruler is the________________ (expensive), the white one, the blue one or the red one? [填空题] *空1答案:most expensive14. This laptop is ________________(thin) than that one. So I will take this one. [填空题] *空1答案:thinner15. I am looking forward to ________________(challenge) him some day. [填空题] *空1答案:challenging三、信息询问1. 你想知道这台电脑可以多快计算出数字,你问老师: [填空题]_________________________________2. 你想知道人们用电脑做什么重要的事,你问老师: [填空题]_________________________________3. 你想知道这两部手机总共的价格是多少,你问店员: [填空题]_________________________________4. 你想知道哪一台电脑更受年轻人欢迎,你问店员: [填空题]_________________________________good比较级:_________good最高级:_________ [填空题] *空1答案:better空2答案:bestbad比较级:_________bad最高级:_________ [填空题] *空1答案:worse空2答案:worstold比较级:_________old最高级:_________ [填空题] *空1答案:older空2答案:oldestinteresting比较级:_________interesting最高级:_________ [填空题] *空1答案:more interesting空2答案:the most interesting。

期中复习方法主题班会ppt课件

期中复习方法主题班会ppt课件

反思这阶段的学习, 你存在什么问题?
上课睡觉,转笔,晃腿或跷二郎腿
自修或上课说话,传纸条或代传纸条
课间或到操场后东张西望,浪费时间
迟到 你有这样的问题吗?
01
03
02
04
作业的习惯:
作业应付观点,作业潦草(导致出错的最多的原因);
审题不严;做前不思考(不愿意动脑),做的过程中出错不断,做后不总结;;
期中来了, 你做好准备了吗?
高二(23班)主题班会
考前复习动员,为期中复习最后两个周的学习和复习指明方向。
知道期中复习阶段应该做好哪些方面的准备,明了如何准备。
探究高效学习方法的,找到适合自己的学习和复习方法。
班会目的:
从前有一位农场主,在大西洋沿岸耕种一块土地。他总是不断地张贴雇用人手的广告,可还是很少有人愿意到他的农场工作。因为大西洋沿岸的风暴总是摧毁沿岸的建筑和庄稼。直到有一天,一个又矮又瘦的中年男人找到农场主应聘。“你会是一个好帮手吗?”农场主问他。”“这么说吧,即使是飓风来了,我都可以睡着。”应征者得意地回答。
突出重点(你最想在哪些方面尽快有所提高)
具体实施方案(你想通过什么途径来实现你的目标)
切合实际(你的目标符合你的实际吗?对你有挑战性吗)
计划的执行要进行监控(计划要有监督人,要进行说,做一道题一定弄懂吃透,可以反复几次来回思考,从各个角度考虑,这样做会一题胜过做十题,也只有这样才能做到举一反三,触类旁通。
02
集中精力,心无旁骛。“蚓无爪牙之利,筋骨之强,上食埃土,下饮黄泉,用心一也。” 别把心思用在学习之外的事情上。
03

向弱科要分数更明智 有些同学存在一 个错误的倾向,就是为 了保持自己在某个科目 的优势花费了大量时间, 结果分数没有明显提高。 明智的做法是对自己的弱科多花时间,结果必然是分数有明显提高。

期中考试复习 Unit3--4单元课件人教版八年级英语上册

期中考试复习 Unit3--4单元课件人教版八年级英语上册
11
考点4 aloud, loud 与 loudly
loudly, loud,aloud作为副词都有“大声地,响亮地”的意思。loudly与loud含义 相同,可放在动词之前或之后,用以说明声音的强度,含“喧闹,嘈杂”的意味; loud和loudly有比较级和最高级形式,而aloud则没有。
Speak louder, or nobody can hear you. 请大声些讲话,否则谁也听不见你的话。 (1)loudly只能作副词,含有“喧闹”的意味,常与argue, ring, knock等动词连用。 As students, we shouldn't argue loudly with our teachers. 作为学生,我们不应该大声和老师争吵。
5
词汇过关
20.serious adj.→ __se_r_i_o_u_s_ly_ adv.严重地;严肃地 21.loud adj.→ ___l_o_u_d_ly__ adv.喧闹地;大声地 22.hungry adj.→ ___h_u_n_g_e_r_ n.饥饿 23.bored adj.→ ___b_o_r_in_g__ adj.无聊的 24.act v.& n.→ __a_c_ti_v_e___ adj.积极的→ ___a_c_ti_v_e_ly_ adv.积极地 → __a_c_t_o_r___ n.男演员→ ___a_c_t_r_es_s_ n.女演员→ __a_ct_i_o_n___ n.行动 25.wait→ _w__a_it_e_r___ n.侍者;男服务员→ ___w__a_it_r_e_ssn.女服务员 26.quietly adv.→ ___q_u_i_et___ adj.安静的
The man looks like our headmaster.那个人看起来像我们的校长。 (4)be like比look like的应用范围更大,可指品德、性格、相貌等。 What's your sister like?你姐姐什么样子?/你姐姐是怎样一个人? 习题精练 ①Look! My bag i_s_s_i_m_i_la_r__to_ hers. Maybe we buy them in the same shop. ②—I wonder what your sister _l_o_o_k_s_l_ik_e__.—She is tall. (be similar to, take after, look like, be like)

8AUnit4复习课件

8AUnit4复习课件
try 之后既可接不定式,又可接动名词,但含义上有区别。 try to do 意思是“努力去做某事”“尽力干……” ; try doing 意思是“尝试着干某事”,“试着(用什么方法) 去做某事”。
3. Another time, he wanted to put up a picture on his bedroom wall, but he hit a pipe and filled the room with water.
3/8/2021
1. We should do something instea(d代替) of just talking about it.
2. She has never made so many mistakes in answering such easy questions. 3. Hundreds of people will attend(出席) the concert. 4. I want to take a course(课程) in
put away:把(某物)放在合适的地方 put on: 穿上;戴上 put off: 脱去;除去
Sentences
1. My cousin Andrew is crazy about DIY. be crazy about 对……着迷
2. He once tried to put in a brighter light in his bedroom, but he made a mistake.
3/8/2021
strawbeery spoon salad cream mix add tip example leave sauce ham correct finished
40确定的 41积极的 42可能的 43收拾 44秘密的 45错误的 46拼写 47气球 48粘住 49封面 50完成 51颜料 52家具

新人教版八年级数学上册期中考试知识点总复习课件精华版省名师优质课赛课获奖课件市赛课一等奖课件

新人教版八年级数学上册期中考试知识点总复习课件精华版省名师优质课赛课获奖课件市赛课一等奖课件

例4:求证:有一条直角边和斜边上旳高 相应相等旳两个直角三角形全等。
分析:首先要分清题设和结论,然后按要求画出图形, 根据题意写出已知求证后,再写出证明过程。
阐明:文字证明题旳
书写格式要原则。
如图:将纸片△ABC沿DE折叠,点A落在点F处,
已知∠1+∠2=100°,则∠A=
度;
例5、如图6,已知:∠A=90°, AB=BD,ED⊥BC于 D.
你能画图阐明吗?
3.逆定理:与一条线段两个端点距离相等旳点, 在线段旳垂直平分线上。(完备性)
4.线段垂直平分线旳集合定义: m 线段垂直平分线能够看作是 A F
与线段两个端点距离相等旳所
有点旳集合。
C D
B
E
三.用坐标表达轴对称小结:
在平面直角坐标系中,有关x轴对称
旳点横坐标相等,纵坐标互为相反数.有
(-2, -3) (1, 2) (6, -5)
• 有关y轴旳对 2、称已点知点P(2a+b,-3a)与点P’(8,b+2).
(0,1.6) (4,0) (0, -1.6) (-4,0)
关y轴对称旳点横坐标互为相反数,纵坐
标相等.
点(x, y)有关x轴对称旳点旳坐标为_(x_,_-__y_).
点(x, y)有关y轴对称旳点旳坐标为_(-___x_, y_).
练习
1、完毕下表. (抢答)
已知点
(2,-3) (-1,2) (-6,- (0,-1.6) (4,0) 5)
• 有关x轴旳对 (2, 3) (-1,-2) (-6, 5) 称点
10、已知,△ABC和△ECD都是等边三角形,且点B,C,D在一
条直线上求证:BE=AD 证明:

人教版八年级上册期中复习练习课件(常考题型复习) (共53张PPT)

人教版八年级上册期中复习练习课件(常考题型复习) (共53张PPT)

22.如图,AD是△ABC中BC边上的中线,若AD=5, AC=8,则AB的取值范围是___.
23.如图,每个小正方形的边长为1,A、B. C是 小正方形的顶点,则∠ABC的度数为()
22.如图,AB∥CD,O为∠BAC,∠ACD平 分线的交点,OE⊥AC交AC于E,且 OE=2,则AB与CD之间的距离等于___.
(3)△ACE和△ABE的周长差。
6cm
8cm
10cm
A
3.已知△ABC的∠B、∠C的平分线交于点O。
求证: BOC 90 1 A
2
B
0 C
4.已知:BP、CP是△ABC的外角的平分线,交于点O。
求证:
BOC
90
1
A
B
2
\
A
C
o
5.△ABC中,∠ABC的平分线BD和△ABC的外角平分线CD
o 交于 ,
(2)若AC=2,BC=1,求CM的长
29.如图,已知△ABC中,AB=AC=8cm,∠B=∠C,BC=5cm,点D为AB的中点。 (1)如果点P在线段BC上以1cm/s的速度由点B向点C运动,同时,点Q在线段CA上 由点C向点A运动。 ①若点Q的运动速度与点P的运动速度相等,经过1秒后,△BPD与△CQP是否全 等,请说明理由;
40.如图,已知P(3,3),点B. A分别在x轴正半轴和y轴正半轴 上,∠APB=90∘,则OA+OB=______.
41.等腰三角形一腰上的高与另一腰的夹角为 40°,底角的度数是____
42.等腰三角形一腰上的垂直平分线与另一腰 的夹角是40°,底角度数 是_________
43.如图,E在△ABC的AC边的延长线上,D点在AB 边上,DE交BC于点F,DF=EF,BD=CE,求证: △ABC是等腰三角形。

牛津 8A U1 复习课件

牛津 8A U1 复习课件

初 中 英 语
八 上
C Put the following sentences into English 1 Lucy是一个聪明的女孩。 是一个聪明的女孩。 是一个聪明的女孩 Lucy _______________________. 2 Jack是他们班最高的男生。 是他们班最高的男生。 是他们班最高的男生 Jack _______ boy _____ his class. 3 这首乐曲听起来美极了! 这首乐曲听起来美极了! The music ___________________! 4 你现在累了吗? 你现在累了吗? ______ you _______ now? 5 我现在感觉比昨天好多了。 我现在感觉比昨天好多了。 I ________ much ________ than yesterday.
初 中 英 语
八 上
A Write the comparatives and superlatives with the following adjectives 1 small _______ ________ 2 thin ______ ________ 3 early _______ ________ 4 slim _______ ________ 5 healthy ______ _______ 6 ill _______ ________ 7 exciting _______ ________ 8 fine _______ _______
对某人慷慨wearasmileononesface面带微笑八上bewillingto情愿愿意干某事情愿照料他妈为他溜狗喂它食物初中英语bewillingtolookafterhismotherbewillingtowalkhisdogbewillingtofeedit八上初中英语sharewith

人教版八年级(上册)数学期中复习PPT课件-【完整版】

人教版八年级(上册)数学期中复习PPT课件-【完整版】

C′
共同学习
例题1:如图:AC⊥BC,BD⊥AD, AC=BD.求证:BC=AD.
D O C 证明: AC⊥BC,BD⊥AD
∴ ∠D=∠C=90°
在Rt△ACB和Rt△BDA中,则
A
B
AB=BA(共公边)
AC=BD.(已知)
∴ Rt△ACB≌Rt△BDA (HL). ∴BC=AD
(全等三角形对应边相等).
A
B
DM
C
三角形木架的形状不会改变,而四边形木架的形状 会改变.
三角形具有稳定性, 四边形具有不稳定性
练习 下列图形中哪些具有稳定性 具有稳定性 不具有稳定性 不具有稳定性
具有稳定性 不具有稳定性
具有稳定性
练习3
下列关于三角形稳定性和四边形不稳定性的说法
正确的是( C )
A、稳定性总是有益的,而不稳定性总是有害的 B、稳定性有利用价值,而不稳定性没有利用价值 C、稳定性和不稳定性均有利用价值
F
∴BD=CD= 12BC(中线的定义B)
E O

C
D
三角形的三条中线相交于一点,交点在三角形的内部.
三角形的角平分线
在三角形中,一个内角的角平分线与它的对边相交,
这个角的顶点与交点之间的线段,叫做三角形的角平分线。
A
∵AD是 △ ABC的角平分线


∴∠ BAD = ∠ CAD = 21∠BAC (角平分线的定义)
3.已知: AB BD, ED BD,C是BD上一点 且AC EC, AC EC 求证:BD AB ED
A
E
B
C
D
角平分线的性质:
角的平分线上的点到角的两 边的距离相等.

八上语文期中复习一等奖课件字形字音

八上语文期中复习一等奖课件字形字音

【解析】字音重点考核多音字、形声字、形似字、音近字、方言、 生僻字等。在具体的语言环境中遇到多音多义字时,要先弄清楚它 们在词语或句子中的意义,再根据音义对应的规律辨别读音。还可 根据形声字中的声旁特点协助判断读音。如“桂冠”:原先人们把 月桂树的枝条做成花圈的形状或把花圈戴在头上作为一种胜利或杰 出的象征,后来通常以桂冠作为光荣的称号。这里“冠”是名词, 所以念“ɡuān”。注意据义定音。字形题从表象上看主要考核双音 节词语和成语,有时会考核三字的专业术语和熟语。从分类看主要 考核音近字或形近字,音近字注意据义定形,形近字可以以音定形。 辨析方法主要有对举、组词、读音、形旁辨形。如“颁”不要写成 同音字“班”“斑”。“誉”不要写成形近字“誊”“眷”。
4.根据拼音写出相应的词语。 (1)国民党的广大官兵一致希望和平,不想再打了,听见南京拒绝和 平,都很xiè qì(_泄__气___)。 (2)经济学家帕西,他建立了法国国际zhònɡ cái(__仲__裁__)协会。 (3)这是达卡多拉游泳场的8千名观众一齐翘首而望,bǐnɡ shēnɡ liǎn xī(__屏__声__敛__息__)的一刹那。 (4)渤海某海域,海风呼啸,海浪pénɡ pài(_澎__湃___)。
8.根据拼音写出相应的词语。 (1)他不知道详细,所以要问我怎么裹法,足骨变成怎样的jī xínɡ(__畸__形__)。 (2)我到云南后,从家信中知道,我母亲对我这一举动不但不反 对,还给我许多wèi miǎn(_慰__勉__)。 ( 3 ) 有 的 从 图 拉 驾 车 赶 来 , 在 客 厅 里 zhènɡ jīn wēi zuò (__正__襟__危__坐__)地等待这位大师的接见。 (4)这个物理学家hé yán yuè sè(__和__颜__悦__色__)地回答:“我不 知道……你可以想到,我希望它有很美丽的颜色。”

八年级上册期中复习ppt课件

八年级上册期中复习ppt课件

·教育科学版
第3课时 │ 考点聚焦
考点2 声音的特性 1.__音__调____、___响__度___、__音__色____是声音的三个特征。
[比较] 音调、响度和单色
音调 响度 音色
概念
影响因素
声音的 发声体的振动__频___率___。频率越大,音调
高低
越高
①发声体的_振___幅____。振幅越大,响度越
·教育科学版
测量值 真实值 3.误差是________和________之间的差别。 4.特殊测量方法 (1)测多求少法;(2)化曲为直;
[留意] 测量工具的选择并不是越精确越好,应根 据实际测量的需要合理的选择。
2021/6/28
·教育科学版
测量误差和测量错误的比较
测量误差
测量错误
性质 不是错误,不可消灭
限速40km/h 49.5 s [解析] t=vs=400.5k5mkm/h=0.01375 h=49.5 s [点评] 本题看得懂交通标志牌上数字的含义是解决问 题的关键。
·教育科学版
·教育科学版
第3课时 │ 考点聚焦
考点聚焦
考点1 声音的产生和传播
产生
声音是由于物体的__振___动___而产生的,振动停止,发声就停
2.时间的测量
单位
测量 工具
秒(s)、小时(h)、分(min)等 古代 日晷、沙漏、滴漏、脉搏等
现代
机械钟、石英钟、电子表、 停表等
2021/6/28
·教育科学版
第1课时 │ 归类示例
例1 读图,图1-3,用停表测量校运会上女子1500m 比赛成绩,从开始计时到此刻经历的时间是__5_m__in_1_0_。s
(2)不能选择所研究的对象本身作为参照物,那样研究 对象总是静止的。

厉兵秣马,备战期中——期中备考主题班会课件-高中主题班会优质课件

厉兵秣马,备战期中——期中备考主题班会课件-高中主题班会优质课件





期中考试重要性
2.帮助大家明白自己所处的位置
像期中考试这样的正规考试,考试结果出来后,学校必然会 给 同 学 们 进行排名。而考试排名会使 大 家 清楚地看到自己在班 级的位置,给自己树立危机感,从而明确努力的方向,让自己 有超越的目标,并为了这个目标不断努力,不断学习。




期中考试重要性




结束语
同学们,无论是月考还是期中考试,都仅仅是一个阶段性 的检测而已,考试成绩不重要,通过考试发现问题才是最重要 的。希望大家都能好好吸收消化今天讲到的备考方法好好复习, 争取在期中考试考出理想成绩!
老师真诚祝愿大家在本次期中考试开始的时候,带着成功 的信心走进考场,以自己扎实的学识和诚实的态度,考出好成 绩!为自己加油,为班级添彩。


胜利喜悦回家门 轻松心情进考场


厉兵秣马备战期中
旗开得胜,马到成功






考试后反思总结
3.全面分析考试中存在的问题
说到分析考试中存在的问题,通常情况下,我们主要是分 析学习知识方面的问题,殊不知,考试中存在的问题是多方 面的,既有知识层面的,也是能力层面的,还有方法技巧层 面的,甚至有考试心态层面的。这就需要我们全面分析考试 中存在的问题,为下一步制定计划和措施提供依据。
高考试卷每年都会出现一些创新题,同时有改编题等等,学 生对试卷的适应程度直接 影 响 其高考走向。那么对于高三的学 生来说,对不同试卷尤其是期中考试试卷的适应能力显得很重 要。




第二部分
胜利喜悦回家门 轻松心情进考场

《期中期末考前复习》PPT班会课件

《期中期末考前复习》PPT班会课件
➢ 通过自我控制,保持旺盛的战斗力,充满激 情的让每一天都变成金子!
➢ 用“分”来计算时间的人,比用“时”计算 时间的人,时间多五十九倍。
期中期末考
期中期末考前复习
期中期末考前复习方法总结
目录
01 如何取得更好的成绩 02 如何取得更佳的状态 03 如何科学的复习 04 制定学习计划
第一部分
如何取得更好的成绩
PART-01
如何取得更好的成绩
认真总结月考的成绩
要认真总结这次月考的经验教训,不放松学 习,不放权纪律。
尤其是晚上的就寝纪律,那可是全靠咱们同 学自觉的时候。
“轻和缓”指的是非重点,难度小,占分不多 的部分,也可以是自己掌握得比较好的部分。
重要性
B
重要但不紧迫
C
紧迫但不重要
A
重要而紧迫
D
不重要也不紧迫
紧迫性
有效率的人办事 A—B—C—D
制定周全的学习计划
➢ 依靠学习技能,可以提高学习效率,这样就 能完成更多的任务
➢ 充分利用往往被浪费或认为无足轻重的小块 时间,这样就能获得比别人更多的时间。
把复习看成获得知识、充实自己的机会,而不是一件必须完 成的令人不愉快的任务,不要把老师和家长看成是在监视自 己,而要认识到他们是在利用宝贵时间指导和帮助你,要把 他们看成是自己学习的指导者。
如何科学的复习
针对考点,专项练习
练习中,选题要精,在教师的指导下,从实际出发,进行各 种形式、多层次的练习,练习要有步骤、有目的、有思考, 切忌一味做题,陷入题海。
多看错题集,温故而知新
将日常练习、考试中遇到的错题、典型题分门别类地收集在 一起。期末复习中,一定要拿出一定的时间重新去温习,这 样做,会比做几道题有更大的收获。

2024-2025学年鲁教版(五四制)八年级数学上册期中考试知识梳理课件

2024-2025学年鲁教版(五四制)八年级数学上册期中考试知识梳理课件
(2)先乘方再计算乘除,再约分即可求解.
知识点6:同分母分式的加减
同分母分式相加减,分母不变,把分子相加减;
上述法则可用式子表为:
知识点7:异分母分式的加减
异分母分式相加减,先通分,变为同分母的分式,再加减.
上述法则可用式子表为:
题型五 已知分式恒等式,确定分子或分母
x3
A
B


x 1 x 1 x 1 x 1
【点拨】本题主要考查了分式的性质,熟练掌握分式的性质是解题的关
键.根据分式的分子分母都乘以或除以一个不为0的整数,分式的值不变,
即可得到答案.
知识点3:分式的约分,最简分式
与分数的约分类似,利用分式的基本性质,约去分子和分母的公因式,不改变
分式的值,这样的分式变形叫做分式的约分。如果一个分式的分子与分母没有相同
B.-x2+y2
C.-x2-y2

D.(-9 x)2-(-y)2
1 2 2 1 2 2 1
1
x -y =( x) -y =( x+y)( x-y),故不符合题意;
4
2
2
2
B.-x2+y2= y2-x2 = (y +x)( y-x),故不符合题意;
C.-x2-y2=-(x2+y2),不符合平方差公式的特点,故符合题意;
故选:B.
【点拨】此题考查了因式分解的意义,分解因式就是把一个多项式化为几个整式的积的形
式.因此,要确定从左到右的变形中是否为分解因式,只需根据定义来确定.
题型二 根据因式分解的结果求参数
2

若 -3-10 = ( + ) ( + ),则 + =

牛津译林版8A期中1-4单元基础知识复习(翻译)含答案

牛津译林版8A期中1-4单元基础知识复习(翻译)含答案

Unit l Friends1.张老师关心每个学生,就像他们的父亲一样。

2.据说他们的语文老师擅长在课堂上讲滑稽的笑话。

3.你觉得是什么使得英语课这么有趣呢?4.替朋友保守秘密是好朋友最重要的品质之一。

5.李平是个诚实的男孩,他从不撒谎。

6.她长长的直发使她很特别。

7.如果你工作有困难,我愿意任何时候帮助你。

8.由于在床上看书时间太多,他视力很差。

9.Betty从不感到无聊或不愉快,她常开些有趣的玩笑,逗我笑。

10.他很和善,从不说别人的坏话。

11.当我读到你的作文时,我想起了名叫May的好友。

12.昨天当我听到这首歌的时候,我想起了我的一个老朋友。

13.昨天在公交车上,我把座位让给了一个抱婴儿的妇女。

14.如果你需要帮助,你可以在任何时间给我打电话。

15.长大后我想当一位艺术家。

16.安迪是我最好的朋友,我愿意告诉他任何事情。

17.当夏天来到时,天气变得越来越热。

18.他认为骑自行车是最利于健康的户外活动之一。

19.第九题比第十二题难多了。

20.在考试中你越细心,犯的错误就越少。

21.野营没有滑水危险。

22.当我们拥有足够的时间时,我们就去周游世界。

23.午餐期间她总是一个人坐在操场上。

24.我在那儿时交了许多朋友。

25.李强将来想成为一名社会工作者。

26.王叔叔经常帮助人们解决他们的问题。

27.昨天我的父母和我谈论了关于他们的未来计划。

参考答案:1.Mr.Zhang cares about every student,just like their father.2.It is said that their Chinese teacher is good at telling funny jokes in class.3.What do you think makes English classes so interesting?4.Keeping a secret for friends is one of the most important qualities of a good friend.5.Li Ping is an honest boy and he never tells lies.6. Her long straight hair makes her very special .7. If you have problems with your work, I am willing to help you any time.8. He has poor eyesight because of reading in bed too much time.9. Betty never feels bored or unhappy.She often tells funny jokes and makes me laugh.10. He's very kind and never says a bad word about others.11. I thought of my good friend named May when I read about your composition.12.I thought of an old friend of mine when I heard the song yesterday.13 .Yesterday I gave my seat to a woman with a baby on the bus.14.You can call me any time if you need help.15.I’want to be an artist when I grow up.16.Andy is my best friend.I am willing to tell him anything.17. When summer comes, the weather becomes hotter and hotter.18. He thinks cycling is one of the healthiest outdoor activities.19. The ninth problem is much more difficult than the twelfth one.20. The more careful you are in an exam, the fewer mistakes you'll make.21. Camping is not as dangerous as skating.22.When we have enough time,we will travel around the world.23.During lunchtime, she always sit alone in the playground.24.He made many friends while he was there.25.Li Qiang would like to be a social worker in the future.26.Uncle Wang often helps people with their problems.27.Yesterday my parents talked about their future plans with me.8A Unit2 School life 1.英特网上的广告比电视上少。

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than my dad. 14 Which subjectthise _m_o_s_t_i_m_p_o_r_ta_n_t__(important), Science,
English or Art? 15 Mr Lin is muchm_o_re__p_o_p_u_la_r___ (popular) than Mr Guo to the
on your right. 3 Wang Nan spends 6 hours practicing _p_l_a_y_in_g_(play) table
tennis every day. 4 __T_a_k_i_n_g__(take) a bus is much faster than walking.
6 ---Dad , I can’t find Mum in the shop. ---Oh, Look! She _is_p_a_y_i_n_g_ (付款) for your new coat there.
7 Mary is always late for school. It _w__o_rr_ie_s_(烦扰)
past the Music Hall?
11 The girl is getting fatter and fatter, so she eats less to lose her __w_e_i_g_h_t____(重量). 12 My drawing is the most beautiful in the drawingco_m_p_e_t(i比tio赛n ). 13 I am 1.75 metres in ___h_e_ig_h_t__(高度), but I am still shorter
show? 6 Which team do you think can be in the _f_in_a_l__(决赛). 7 The book may be useful to me some day so I __ke_e_p_ (留 着) it in my study. 8 The story __i_ts_e_l_f (本身)is not interesting at all. 9 He fell off the bike yesterday. _L_u_c_k_i_ly_(幸运地) , he
on her face all day. 6 I like her bright and _s_m__il_in_g__(smile) eyes very much
7 Poor luck! Today is my ___w_o_s_t___(bad) day in a week. 8 Uncle Li put on _w__e_ig_h_t_(weigh) again when I saw him last
workers. 26 What an _e_x_c_e_ll_e_n(t极好的) doctor he is! He has
saved so many people. 27 I like my sister bright and _s_m__il_in_g_ (微笑的)
eyes very much.
students.
19 Wang Jun is taller than __a_n_y__(任何的)
other student in his class. 20 Liu Ping wants to be a __s_o_c_ia_l_(社会的)
worker. _A_m__o_n_g_(在。。。之中) all the subjects, I like
good time.
1 Nie Haisheng and Fei Junlong are my _h_e_ro_e_s_(hero).
I admire them very . 2 The play wasn’t interesting at all. We all felt __b_o_r_e_d_(bore) 3 Doudou is one of the best teenager _s_in_g_e_r_s_(sing)
different countries. 8He couldn’t wait __to__tu_r_n_(turn) on the TV as soon as he got
home. 9I hear that all of you are doing __fi_n_e__(顺利) at school this
term. 10We can teach _o_u_rs_e_l_ve_s_(us) English by using computer. 11As a _p_r_e_si_d_e_n_t (总统), he must think about his country and
his people first.
English best.
21 The boy is crying. Can you make him __la_u_g_h__(大笑) 24 You will have to be _p_a_t_ie_n_t_(耐心的) with
Granny because she can’t hear well. 25 It’s true that bosses all likeh_a_r_d_-w__o_rk_in_g(努力的)
her parents. 8 The red pen is __n_ic_e_r_ (nice) than the green one.
1 This watch is m__o_r_e_e_x_p_e_n_s_iv_e_(expensive) than the others
in the shop. 2 My mother says she feels much ___b_e_tt_e_r _(well) today. 3 Do you think Rose is __th_e__p_r_e_tt_ie_s_t_____(pretty) of the
didn’t hurt himself.
5Do you __b_e_l_ie_v_e(相信) that they will win the game again? 6You can take a boat trip and enjoy the beautiful __s_ig_h_t_s(风 景) along the river. 7I am interested in learning about the _c_u_lt_u_re_s_(文化) of
Oh, look! She __is__d_o_in_g_(do) some washing in the yard. 9 My uncle is _h_u_m__o_ro_u(幽s 默的) and he always makes us laugh. 10 Can you buy two ___ti_c_k_e_ts__(票) for me when you walk
month.
1 She went straight to Simon’s house and ___k_n_o_c_k_e_d(knock)
on the 2 Cross the road and you __w_i_ll _fi_n_d__(find) the police station
6Walk along the __s_t_ra_i_g_h_t (直的) road till you see a post office. 7 Walk __p_a_s_t _ (经过) the restaurant, you will see a bank on
your right.
8 Dad , I can’t find Mum in house.
12The boy is clever. He can work out the problem _h_im__s_e_lf____(him). 13Please help _y_o_u_r_s_e_lv_e_s_ (you) to some fish, children.
17It’s snowing hard. You must drive _ca_r_e_f_u_lly____(careful). 18Allie asked me ___p_o_li_te_l_y__ (polite) to put the things away.
in China. I like her voice. 4 Funny __jo_k_e_s___(笑话) can make people happy. 5 Walk __p_a_s_t_(经过) the bookshop, and you will see
a bank on your right.
19I am not __re_a_l_ly____(real) interested in playing computer games. 20English is a useful _l_a_n_g_u_a_g_e_(语言). Many important
articles are written in English. 21I have __m_o_r_e___(更多) books than Li Lei does. 22English is one of the important _la_n_g_u_a_g_e_s(language) of all. 23Time seems __to__g_o__ (go) faster when we are having a
1 He tried his bestt_o_r_e_a_c_h (reach) the station before the
train left. 2 The __p_re_s_i_d_e_n_t _(总统) lost the support of people in his
country. 3 Would you like to have a long j_o_u_rn_e_y__(旅行) to Tibet? 4 __F_in_a_ll_y_(最后) we found the way back to the hotel. 5 Where can we buy any _ti_c_k_e_ts__(票) for the charity
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