人教版第十一单元同步练习题含答案
(完整word)新人教版九年级第十一单元精选练习题附答案
新人教版九年级第十一单元优选练习题附答案Unit 11Sad movies make me cry.第一课时Section A(1a～2d)1基础过关Ⅰ.用方框中所给的单词填空。
spend，while ，friendship， together，drive1. Although you will return to your hometown tomorrow，I will remember our ________ forever.2.As parents，we shouldn't ________ our children to do much homework.3.In China and some other countries，it is impolite to speak loudly ________ you are havinga meal.4.We often work ________ as a team in English classes.5.Nowadays it's a modern lifestyle to ________ weekends in the countryside.Ⅱ. 用括号内所给单词的适合形式填空。
6.Mike didn't receive his daughter's letters ________(late).7.Mary was ________(happy)，because she failed her English exam.8.Our teacher makes us ________(help) the boy every day.9.Mike is ________(strong) than any other student in our class.10.Why don't you ________(climb) the mountains with us on weekends?Ⅲ. 单项选择。
人教版九年级下册化学第十一单元同步测试卷含答案
人教版九年级下册化学第十一单元同步测试题一、单选题1．下列关于碳酸钠与碳酸氢钠的说法错误的是A ．Na 2CO 3溶液呈碱性B ．NaHCO 3固体难溶于水C ．“苏打”是碳酸钠的俗名D ．NaHCO 3可用作发酵粉 2．下列物质名称与化学式对应关系错误的是 A ．烧碱—NaOH B ．纯碱—Na 2CO 3 C ．小苏打—NaHCO 3D ．熟石灰—CaO3．下列有关盐的用途的说法错误的是 A ．氯化钠是重要的调味品 B ．可用亚硝酸钠代替食盐腌渍食品 C ．小苏打可用于焙制糕点D ．碳酸钙可用作补钙剂 4．下列选项中物质的俗称、化学式、类别、用途对应正确的是 A ．烧碱 Na 2CO 3 碱 制玻璃 B ．生石灰 CaO 化合物 干燥剂 C ．食盐 NaOH 盐 除铁锈 D ．酒精 C 2H 6O 氧化物 燃料 5．下列反应属于复分解反应的是 A ．2NaOH+HCl=NaCl+H O B ．2ΔCO+CuO CO +CuC ．2322H CO +CuO=H O+CO ↑D ．22Fe+2HCl=FeCl +H ↑6．下列物质能够发生反应，且生成气体的是 A ．向稀硫酸中滴入Ba(OH)2溶液 B ．向NaCl 溶液中滴加K 2SO 4溶液 C ．将CuCl 2溶液滴入KOH 溶液中D ．将(NH 4)2SO 4和熟石灰混合研磨 7．下列各组物质中，能发生复分解反应且反应前后溶液总质量不变的是 A ．氧化镁和稀硫酸 B ．氯化钾溶液和硫酸钠溶液 C ．氢氧化钠溶液和稀盐酸D ．盐酸和硝酸银溶液8．下列酸碱盐物质在水溶液中能够共存的一组是 A ．碳酸钾与氯化钡 B ．氯化钾与硝酸银 C ．氢氧化铜与稀盐酸D ．氢氧化钠与氯化钡9．下列各组内物质在溶液中能大量共存的是A．NaCl、AgNO3、K2SO4B．KOH、NaNO3、H2SO4C．Ba（OH）2、NH4Cl、CuSO4D．KNO3、MgCl2、ZnSO410．下列各种溶质的溶液混合后无明显现象的一组是A．HCl、Na2CO3、K2SO4B．KNO3、Ba(OH)2、NaClC．KCl、AgNO3、HNO3D．NaOH、FeCl3、(NH4)2SO411．草木灰的有效成分是K2CO3，草木灰属于A．钾肥B．磷肥C．氮肥D．复合肥12．下列化肥属于复合肥的是A．KNO3B．K2SO4C．Ca3（PO4）2D．CO（NH2）2 13．某班学生以“施用化肥的利与弊”为主题进行小组辩论，正方的观点是施肥有利。
人教版英语11单元练习题(含答案)
人教版英语11单元练习题（含答案）一、单项选择。
1. —Are your parents ____ agreement with you about going traveling this winterholiday?—No. They are really hard ____ me and always ask me to spend my timestudying.A. on; withB. in; onC. on; toD. in; for2. In every ____ there has to be some give-and-take.A. friendshipB. instrumentC. attentionD. blackboard3. Rafael Nadal is so great that he has won the Rogers Cup several times. He never____ his fans.A. praisesB. greetsC. disappointsD. supports4. —You look ____，Katie. What's up?—Well，I've been ill for a few days.A. madB. activeC. politeD. pale5. —What's the weather like in Kunming, Lucy?—It's ____ hot ____ cold. So Kunming is called “the Spring City”.A. neither; norB. not only; but alsoC. either; orD. both; and6. —Would you like to watch the movie Dying to Survive with me?—I'm not interested in it. ____，I have no time.A. HoweverB. BesidesC. ExceptD. Finally7. —Mum，I feel nervous about the exam next week.—Take it easy！____ you study，____ results you'll get.A. Hard；goodB. Harder；goodC. Hard；betterD. The harder；the better8. —Driving less and walking more is good for our health.—So I'd rather ____ an hour's walk to work than consider ____ a car.A. take; driveB. take; to driveC. take; drivingD. taking; driving9. —Come and see! The baby is crying.—Please do something to make him ____.A. stop cryingB. stop to cryC. cryingD. cry10. —The doctor ____ to examine my grandpa. What happened to him, Mom?—He hurt himself while working in the garden.A. dropped byB. called inC. was dropped byD. was called in二、完形填空。
人教版英语九年级下册Unit11SectionA同步练习题及答案.doc
人教版英语九年级下册Unit11SectionA同步练习题及答案.doc【若缺失公式、图片现象属于系统读取不成功，文档内容齐全完整，请放心下载。
】Unit 11 Sad movies make me cryⅠ. 根据语境，从方框中选择恰当的短语填空，有的需要变换形式。
wait for, leave out, each time, would rather, have a lot in common1. When copying this article, be careful not _______________ any words.2. To enjoy the scenery (风景), Dale _______________ spend long hours on the train.3. It doesn't matter if you're a few minutes late. We'll _______________ you.4. —I like reading and listening to music, especially classical music.—Me too. It seems we _______________.5. _______________ Holly sees the photo on her desk, she will think of the happy days they spent together.Ⅱ. 根据汉语意思完成英语句子，每空一词(含缩略形式)。
1. 你何不外出野餐呢？_________ _________ _________ go out for a picnic?2. 这部电影如此精彩以至于萨莉想再看一遍。
The film is _________ wonderful _________ Sally wants to see it again.3. 把音乐声音调小点儿，吵得我快疯了！Turn that music down. It's _________ _________ _________!4. 安和萨拉是我的朋友，我们经常一起玩。
人教版新目标英语九年级-Unit11单元同步测试卷及答案
九年级英语第十一单元期末复习测试题一、单项填空（每小题1分，共20分）1. Does Mary agree with you?— Yes, sure. We are in ______ agreement. A. a B. an C. the D. 不填2. — My parents are sometimes too hard ______ me.— Are they? They just want you to spend more time ______ your lessons.A. on; onB. on; withC. with; onD. with; with3. Is it true that some colors can make us feel relaxed?— Y es. Colors do have the ______ to change our feelings and moods.A. secretB. powerC. ideaD. experience4. Doctor, do you think I have got a bad cold?— Maybe. But I can't say that before I ______ you.A. createB. warnC. examineD. prove5. Look at Eric's ______ face. The snake scared him just now.— Yes, I think so. He isn't a brave boy.A. blackB. redC. paleD. blue6. Tina and I are good friends. Our ______ began 10 years ago.A. messageB. friendshipC. suggestionD. education7. Did you and your parents join the trip?— Yes. ______ us, the Greens also went to the amusement park.A. ExceptB. Except forC. BesideD. Besides8. How do you like Han Han's books?— They are my last choice. The more I read them, ______ I like them.A. the lessB. the leastC. the moreD. the most9. How about seeing a movie, Jenny?— Well, I would stay at home rather than ______ to the movies.A. goB. goingC. goesD. went10. I didn't enjoy myself at the party. I just felt ______ . — Well, maybe there were too many people at the party.A. left outB. to leave outC. leaving outD. be left out11. He was happy to see an old friend of ______ in the street. A. him B. he C. his D. her12. I asked Tom if he would help me and he ______ . A. disagreed B. nodded C. refused D. cried13. It's ______ far ______ we can't walk there. Let's take a taxi.A. so; thatB. too; toC. such; thatD. enough; to14. I am not sure which tie to wear for the party.— Sorry, I have no idea, ______ .A. tooB. neitherC. alsoD. either15. The bed was very hard and ______ , so I couldn't fall asleep.A. comfortableB. uncomfortableC. softD. beautiful16. — Have you heard from Mrs. Green lately?— ______ I ______ my brother has received any call or e-mail from her. Hope she is doing well.A. Not only; but alsoB. Neither; norC. Both; andD. Either; or17. — I have told Jim many times to be careful with his lessons, but...— He is clever but careless. You can't make a crab（蟹）______ straight, can you?A. walksB. to walkC. walkD. walking18. Tom ______ a new camera lately. — Really? Do you know its brand?A. buysB. has boughtC. is buyingD. will buy19. — Look at the lovely baby panda. Do you know ______ at birth?— I guess he might be about 100 grams heavy.A. what was his weightB. how heavy was heC. how he was heavyD. what his weight was20. I hope you won't disappoint us in the final, Andy.— ______. I will try my best not to let you down.A. I dislike itB. I am afraid notC. You're wrongD. Believe in me二、完形填空（每小题1分，共10分）A few years ago, I worked at a church（教堂）. My son was little, 21 he went with me to the church every day. Most mornings, we'd stop at a 22 , and get a chocolate drink for him and a cup of coffee for me.A girl at the store brought some 23 and color to our lives each day, so we went there again and again. She had found her own way of enjoying life and her job. I was not even 24 if she knew that her exuberance （活力）had put a smile on the face of each customer.When a customer brought 25 to the counter（柜台）, a saleswoman could have asked, "Would you like some milk with these cookies?" 26 , the girl asked, "Would you like a lottery ticket（彩票）with these cookies?" She 27 asked some funny questions.Y es, life is what you make of it. It's clear that this girl's way of dealing with the customers made the hours in her day more 28 . By doing that, she also influenced the lives of others and made them 29 .Sometimes, if my day at the church made me tired, we'd stop at that store before 30 home. We'd giggle （咯咯笑）as we left the store with the girl's words still behind us, "Would you like some shampoo（洗发香波）with that soda?"21. A. though B. so C. because D. if22. A. store B. hospital C. hotel D. station23. A. trouble B. fun C. ideas D. sweets24. A. afraid B. worried C. sure D. nervous25. A. drinks B. cookies C. coke D. chocolate26. A. Suddenly B. Otherwise C. Instead D. Besides27. A. seldom B. never C. hardly D. always28. A. necessary B. important C. strange D. interesting29. A. cry B. shout C. laugh D. think30. A. cleaning B. going C. leaving D. missing三、阅读理解（每小题2分，共30分）AJohn and Bobby joined a wholesale（批发）company together just after graduation from college the same year. After several years, however, the boss chose Bobby to be the manager but John remained a worker. John could not stand it anymore. He wrote a resignation letter（辞职信）to the boss and complained that the boss did not know who worked harder and better.The boss knew that John worked very hard for the years. He thought a moment and said, "Thank you for your criticism（批评）, but I hope you will do one more thing for our company before you leave. Perhaps you will change your decision and take back your resignation letter."John agreed. The boss asked him to go and find out anyone selling watermelon in the market. John went andreturned soon. He said he had found out a man selling watermelon. The boss asked the price. John didn't know and went back to the market to ask and returned to tell the boss $1.2 per kilo.Then the boss called Bobby to come to his office. He asked Bobby to go and find anyone selling watermelon in the market. Bobby went, returned and said to the boss, "Only one person selling watermelon, $1.2 per kg, $10 for 10 kg. He has 340 melons（甜瓜）. Each melon is about 2 kg. Bought from the South two days ago, they are fresh and red, good quality."John was very surprised and realized the difference between himself and Bobby. He decided not to resign but to learn from Bobby.31. After Bobby was chosen to be the manager, John decided to ______.A. criticize BobbyB. give up his jobC. work even harderD. learn from Bobby32. In fact, John was ______. A. hard-working B. lazy C. knowledgeable D. clever33. How did John know the watermelon price?A. He asked Bobby.B. He asked the boss.C. He bought a watermelon.D. He asked the watermelon seller.34. The boss asked John to do one more thing for his company hoping that ______.A. he would resignB. he would be the managerC. he would remain to work thereD. he would change his attitude towards Bobby35. The difference between John and Bobby was that ______.A. Bobby didn't work so hard as JohnB. Bobby got along better with the boss than John.C. Bobby collected much more market information than JohnD. Bobby sold more watermelons than John at a wholesale food marketBAn American boy said he didn't want an 11th birthday party because he had no friends. But now he is getting something exciting—to be a professional hockey（曲棍球）player.Colin and his family visited players and coaches of the Kalamazoo Wings at a restaurant this week. Colin said, "I knew we were going to the restaurant, but I was not expecting the rest（其余）."The team provided the boy with a one-day contract（合同）. It will allow him to join the Wings for their home（主场）game on Sunday. Colin will get his own jersey（线衣）. He will drop the game puck（冰球）and even sit on the bench with the players.Colin has trouble communicating with other people. This makes it hard for him to make friends with kids of his age. Children and adults with such trouble often have high IQ, but have problems in social situations. They often have trouble understanding jokes.So his mother created a "Happy Birthday Colin" on a Facebook page. It went viral and drew more than 2 million "likes." Colin's mom said the best reward for her efforts was seeing Colin grow. "I have seen him change greatly because he knows he has 2.1 million friends. His self-confidence has grown."K-Wings Head Coach Nick Bootland said, "There are things that are much bigger than the game. If we can put a smile on a kid's face that deals with a lot of trouble, we're excited about that chance."36. The Kalamazoo Wings is a ______.A. popular gameB. hockey teamC. school's nameD. Facebook page37. What's TRUE about Colin?A. He has few friends in his real life.B. He is a really professional hockey player.C. He has trouble with his lessons.D. He is good at telling jokes.38. The underlined words "went viral" most probably mean "______ ".A. became strange to peopleB. became popular with peopleC. was known by few peopleD. was easy to get39. Now Colin ______ than before.A. is much strongerB. has a higher IQC. is more confidentD. is more interested in Facebook40. The reading above may be taken from the ______ page of a newspaper.A. school & teenage lifeB. art & musicC. scienceD. world news四、短文填空（每小题1.5分，共15分）When I first met my fifth-grade teacher, I was happy. She seemed pretty nice, so I was excited to（46）_________ a whole year with her. Every day the class would do a warm-up and then discuss it. We would also read stories, sing songs and learn about different cultures around the world. I thought I was very lucky to have such a great, kind and caring（47）_________.When December came around, my teacher suddenly stopped（48）_________ to school. The whole class missed （49）_________. Rumors（谣言）spread around the school about（50）_________ she didn't come to school."She's（51）_________ holiday," some girls explained to each other during lunchtime."She's got really tired of us and decided（52）_________ to teach us anymore," some boys said.（53）_________ no one knew the truth.For the rest of the school year, I never saw her again. In the middle of the sixth grade, I received a disturbing（令人不安的）message. She had died of cancer（癌症）. I（54）_________ very upset. I wish I could visit her in the hospital. Whenever I think about her, I remember all of the happy times we had together. Because of her, I can understand what matters most to me. I never told her how much she meant to me. And now it's too（55）_________.五、读写综合（本大题分为A、B 两部分，共25分）A. 信息归纳（每小题1分，共5分）Puerto Galera is a small town on the northeast coast of the island of Mindoro in the Philippines（菲律宾）. It's a popular spot in summer. People come here from all over the country and the rest of the world for its wonderful beaches and fun water activities.Puerto Galera beachesWater skiing, boating and swimming are some of the activities that Puerto Galera beaches offer to vacation tourists. They are great places to watch the stars light up in the sky.Dolphin watchingThe best time to go dolphin watching in Puerto Galera is early in the morning. In the beginning, dolphin watching can be difficult as the creatures may lie in between the waves（海浪）. But soon enough, one or two of them will break out of the waters and perform a jump. Then the other dolphins will begin to jump as well.Puerto Galera museumIt is on the ground floor of a church. There are many exhibitions of Spanish and pre-Spanish times.Tamaraw FallsTamaraw Falls offers a beautiful place to swim and have fun. It is popular on weekends.B. 书面表达（本题20分）一曲《时间都去哪儿了》让成千上万的人感动落泪。
2024年人教版七年级英语下册第十一单元课堂练习题及答案第2课时 Section A(2a-2d)
A. Their homesickness lasted long.
B. The children stayed on the farm for a week.
C. The writer had to work together with his friends in the boating class. D. It was the first time for the children to be away from their parents.
a lot about the spirit (精神) of Xibaipo.
A. learn
B. learned
C. will learn D. are learning
一二三四 五
基础通关 能力突破 素养达标
( D )10.— Sorry,I’m busy. I can’t go fishing with you.
us laugh happily during the class.
During the week I learned a lot and made many new friends. I also learned
how to take care of myself.
一二三四 五
基础通关 能力突破 素养达标
一二三四 五
基础通关 能力突破 素养达标
4. — I met my favorite actor yesterday. — Lucky (luck) you. 5.[2022黑龙江龙东中考]Tom visited (visit) the British Museum every month when he was in London.
人教版九年级化学下册《第十一单元 课题2 化学肥料》同步练习题及参考答案
课题2 化学肥料1.(2017 湖北襄阳中考)硝酸钾(KNO3)是一种能使农作物增产的常用化肥,它属于( )A.复合肥B.氮肥C.磷肥D.钾肥2.荔枝树的种植是我国南方农业的“亮点”之一。
某农民种植的荔枝树因欠缺磷肥和氮肥而出现生长较慢,叶色泛黄,且产量低的现象。
下列肥料最适合他使用的是( )A.尿素B.磷酸二氢铵C.磷酸二氢钙D.氯化钾3.金色凉山特色原生态农产品享誉川内外。
如会理烤烟、宁南蚕桑、西昌洋葱、雷波脐橙、布拖马铃薯、昭觉黑苦荞……种植这些农作物均需要复合肥。
下列属于复合肥的是( )A.尿素——CO(NH2)2硫酸钾——K2SO4B.磷酸二氢铵——NH4H2PO4硝酸钾——KNO3C.碳酸氢铵——NH4HCO3氯化钾——KClD.硝酸铵——NH4NO3硝酸钾——KNO34.下列关于化肥的说法正确的是( )A.过磷酸钙[Ca(H2PO4)2和CaSO4的混合物]属于氮肥B.凡施用过化肥的蔬菜都会危害健康C.硫酸钾与熟石灰混合、研磨,能闻到刺激性的气味D.合理施用化肥能提高农作物的产量5.下列化肥中,从外观即可与其他化肥相区别的是( )A.磷矿粉B.硫酸钾C.尿素D.硝酸铵6.下表用甲试剂鉴别乙中的两种化肥,难以实现的是( )选项甲乙A Ca(OH)2CO(NH2)2、NH4HCO3B Ba(NO3)2KCl、(NH4)2SO4C AgNO3NH4Cl、NH4NO3D NaCl K2SO4、KNO37.无土栽培是现代农业的一项新技术,其营养液是多种化合物的混合溶液,含有植物生长所需的营养元素。
某种植物进行无土栽培时,需含氮、钾等元素的中性或弱酸性营养液,下列能用来配制营养液的一组化合物是( )A.KCl、(NH4)2SO4、NaOHB.NH4Cl、K2SO4C.KNO3、H2SO4D.K2CO3、CaCl28.请根据要求回答下列问题:(1)为促进作物生长,增强农作物的抗寒、抗旱能力应施加的化肥种类是。
人教版新目标英语九年级 Unit 11 单元同步测试卷及答案
Unit 11标准检测(时间：100分钟满分：120分得分：________)一、听力理解(本大题分为A、B、C、D四部分，共25小题，每小题1分，共25分)A．听句子(本题有5小题，每小题1分，共5分)根据所听句子的内容和所提的问题，选择符合题意的图画回答问题。
每小题听一遍。
()1.How did the speaker go to sleep?A. B. C.()2.What hasn't Judy packed?A. B. C.()3.What are they going to do?A. B. C.()4.How is the woman going to Shanghai?A. B. C.()5.What was the weather like then?A. B. C.B．听对话(本题有10小题，每小题1分，共10分)回答每段对话后面的问题，在各题所给的三个选项中选出一个最佳答案。
每段对话听两遍。
听第一段对话，回答第6小题。
()6.Who likes the red color?A．Bill. B．Kate. C．No one.听第二段对话，回答第7小题。
()7.What does the girl mean?A．She hates the party.B．She is interested in the party.C．She thinks the music and the light are too bad.听第三段对话，回答第8小题。
()8.Why does Henry prefer true friends?A．Because they are good at telling jokes.B．Because they are honest and helpful.C．Because they are serious enough.听第四段对话，回答第9小题。
()9.What does the woman mean?A．Jack should try to trust his brother.B．Jack needn't trust his brother again.C．Jack should try to tell the truth.听第五段对话，回答第10小题。
英语：人教版9年级全册单元练习题及答案Unit 11同步练习
单元巩固训练（Unit 11）Section AⅠ.根据句意，从方框内选择合适的形容词填空。
1. You mustn't do that in a _______ place.2. We’ve been having ________ weather recently.3. You don’t have to pay; the exhibition is _______.4. This morning in the park the ________ air makes me feel quite good.5. He always prefers riding a bicycle rather than ride on a ________ bus.Ⅱ.根据句意,用括号内所给单词的适当形式填空。
1. Is there a good restaurant ________(eat) around?2. I’ d like to buy some _________(write) paper.3. You can take the elevator to the ________(two) floor.4. Look! There is an old man ________(sit) under the tree.5. Jane prefers ________(be) outside to staying at home on weekends.Ⅲ.根据句意，从方框内选择合适的介词或短语介词完成句子。
1. You can sit _________ Jack and talk with him.2. Go ________ the bank, and you’ll find the music store.3. The ship sails ________ Shanghai and Dalian.4. When the bell rang, the children rushed _________ the classroom.5. He wants to go to the bookstore _________ the station, so he must cross the road from the station.Ⅳ. 根据汉语提示完成下列句子，每空词数不限。
2022年人教版八年级英语全册Unit11同步练习及答案(Word版)
Unit11 Sad movies make me cry一、单项选择（共20小题；共20分）1. --- Why do you like this story?--- Because it is so moving that it makes me .A. cryB. cryingC. to cryD. cries2. Let's the school rules.A. don't breakB. not to breakC. not breakingD. not break3. --- Mom, I am afraid that I can't get through the hard time I'm having now.--- My boy, be brave and tell yourself .A. don't give upB. not to give upC. not give upD. to give up4. Mr. Li asks us to remember that careful we are, mistakes we will make.A. the more; the fewerB. the fewer; the moreC. the more; the moreD. the less; the fewer5. Tony Frank likes the CD. They think the music is too noisy.A. Neither; norB. Either; orC. Both; andD. Not only; but also6. Take time to relax by listening to music, reading a book or just spending some time alone. Relaxingallows you to your students with more energy.A. returnB. to returnC. returning7. Mum,I volunteer my time the plates.A. to washB. washingC. washedD. be washed8. --- Which do you prefer, Chinese food or Western food?--- I would rather Chinese food. Let's have noodles.A. to haveB. havingC. hadD. have9. You can't sneeze and keep your eyes at the same time.A. openB. opensC. openedD. opening10. We will have a field trip this afternoon. The news makes everyone .A. excitedB. frightenedC. happilyD. luckily11. Lots of fast food restaurants use the color red make customers .A. to; eating fasterB. want to; eat fastC. to; eat fasterD. to; to eat fast12. My father doesn't let my brother wine(酒).A. drinkB. drinkingC. to drinkD. drinks13. The parents told the children in the street.A. don't playB. not playC. not to playD. to not play14. The more you smile, the you will feel.A. happyB. happierC. happilyD. more happily15. --- Mom, when shall we go to the Palace Museum this weekend?--- Oh, sorry. I have to attend a meeting this weekend. Saturday Sunday is OK.A. Neither; norB. Both; andC. Either; orD. Not only; but also16. He asked her the bag because it was too expensive.A. not to buyB. to buy notC. not buyingD. not buy17. Girl students in some schools are not allowed long hair.A. havingB. haveC. hadD. to have18. --- It's raining outside.--- I stay at home go out.A. prefer; toB. prefer; thanC. would rather; thanD. would rather; to19. It's so cold today; we must keep the fire .A. to burnB. burningC. burnD. burnt20. Colors can change our moods(情绪) and make us happy or sad, energetic or sleepy.A. feelB. to feelC. feltD. feeling二、单词拼写(单句首字母填空)（共10小题；共10分）21. Rosa is in a that vegetables are good for health.22. The girl is p a car with her hair.23. Trevor showed great c when he saved the child from the burning house.24. Eating too much without any exercise will certainly cause w problems.25. I'm always worried about losing my money because I have a lot of w .26. The doctors always e their patients carefully.27. The little girl is too frightened, and her face turns p .28. Customers will feel u when they know the restaurant is very dirty.29. The lights have not been turned off. But it's not my f , is it?30. You must k the ball, not throw the ball because you are a football player.三、单词拼写(根据中文提示拼写单词)（共10小题；共10分）31. Give some candies to the little boy. Don't (使失望) him.32. Never shout at your parents even if you are not in (意见一致).33. Driving again after his accident must have taken a lot of (勇气).34. Larry has put on too much (重量) because of his unhealthy diet.35. Success and (财富) changed his life and character.36. On hot days, it's really (不舒服) to study in a classroom with many students.37. To be a scientist is my (目标).38. The famous Brazilian soccer team has ever had many excellent (教练).39. Our (友谊) will be remembered forever.40. The man (拉) the door and came into the room.四、翻译(根据中文提示完成句子)（共10小题；共20分）41. 妈妈，下次我不会让你失望了。
初中化学(新人教版)九年级全一册同步测试：第十一单元测评(同步习题)【含答案及解析】
第十一单元测评(时间:45分钟满分:100分)可能用到的相对原子质量:H 1O 16Na 23Cl 35.5Fe 56一、快乐点击(每小题3分,共30分)1.下列各种变化,属于化学变化的是()A.海水晒盐B.用活性炭除去水中异味C.海水淡化D.从海水中提取金属镁2.下列购买的物质中不能作为氮肥使用的是()A.硫酸铵[(NH4)2SO4]B.氨水(NH3·H2O)C.硝酸(HNO3)D.尿素[CO(NH2)2]3.盐在日常生活中是用途非常广泛的一类物质。
下列说法中不正确的是()A.添加大量的亚硝酸钠来保鲜食品B.硝酸钾在农业上可用作复合肥C.农业上常用硫酸铜配制波尔多液D.用纯碱除去面粉发酵生成的酸4.下列化学肥料属于复合肥料的是()A.氯化钾B.硝酸钾C.磷矿粉D.硫酸铵5.下列离子组能在pH=1的无色溶液中大量共存的是()A.N O3-Fe3+Na+OH-B.K+S O42-Na+N O3-C.Cl-K+S O42-Ba2+D.Ca2+Cl-C O32-Na+6.下列反应属于复分解反应的是()A.C+O2CO2B.2H2O2H2↑+O2↑C.3CO+Fe2O32Fe+3CO2D.HCl+AgNO3AgCl↓+HNO37.常温下,在pH=7的无色溶液中,下列离子可以大量共存的是()A.Na+、Ca2+、N O3-、C O32-B.N H4+、Cu2+、Cl-、S O42-C.Ba2+、K+、OH-、N O3-D.Na+、K+、N O3-、Cl-8.如图所示,现有甲、乙、丙、X、Y、Z六种物质,其中连线两端的甲、乙、丙溶液两两之间能发生反应;X、Y、Z之间只通过一步反应就能实现如箭头所指方向的转化。
下列符合上述要求的一组物质是()9.硫酸厂的污水中含有硫酸,直接排放会导致河流水质酸化,加入下列物质不能解决问题的是()A.NaOHB.Ca(OH)2C.BaCl2D.CaO10.某白色粉末可能含有NaOH、Na2CO3、Na2SO4、NaCl中的一种或几种。
人教新目标英语九年级全册Unit 11 同步练习(word版)(有答案)
人教新目标英语九年级全册Unit 11 Sad movies make me cry.单元同步练习一、单项选择题（下列选项中只有一个选项满足题意）1．Nobody thought it is easy to finish so much work in ________.A．two days’ time B．two-days timeC．two day’s time D．two days time2．— Driving less and walking more is good for our health.— So I’d rather ________ an hour’s walk to work than consider ________ a car.A．take ;drive B．take ; to drive C．take; driving D．taking; driving 3．—How does your mother like your presents for Mother's Day?—Well, __________ this sweater__________ that one is fit for her. They're too big.A．both; and B．either; orC．neither; nor D．not only; but also4．—________ of volunteers will be needed for 2014 International Horticulture Exposition in Qingdao.—Let's go and ________ them.A．Thousands; join B．Thousand; be a member ofC．Three thousand; take part in D．Thousands; be in5．I think your idea is so good．I am________agreement with you．A．for B．in C．with D．on6．I could speak French Chinese, but luckily I could talk with them in English. A．both; and B．neither; nor C．either; or D．not only, but also7．一Which do you prefer，Chinese food or Western food?一I would rather _______ Chinese food．Let’s have noodles．A．to have B．having C．had D．have8．Seeing their teacher _______ into the classroom, they stopped _______ at once.A．walk; telling B．entering; to speak C．enter; to tell D．walking; talking9．—How was your history class?—It was boring. Many students felt ________ during the class.A．sleeping B．sleepy C．asleep D．sleep10．Rose finished her study in the university and went to___ a good job.A．take after B．look after C．care for D．search for11．I didn't enjoy myself at the party. I just felt __ . — Well, maybe there were too many people at the party.A．left out B．to leave out C．leaving out D．be left out12．—The doctor ________ to examine my grandpa. What happened to him, Mom?—He hurt himself while working in the garden.A．dropped by B．called inC．was dropped by D．was called in13．The boy is very naughty, So you must __________ him.A．be hard on B．be close to C．be friends with D．be good for14．How about seeing a movie, Jenny? — Well, I would stay at home rather than ______ to the movies.A．go B．going C．goes D．went15．The teacher hope all of us can hand ________ our homework ________time every day.A．up，in B．out，on C．on，in D．in，in二、完型填空Boys and girls, this summer vacation is the time for you to take your mind off homework and prepare yourself for future life.The following is some advice on 16 to make your vacation meaningful and colorful.Take exercise. Regular exercise, much health. You 17 hard most of the time so far. Therefore, you need to join in outdoor activities, which can bring your whole body into action. You can benefit from different forms of exercise 18 swimming, jogging and mountain climbing.Learn some basic life skills. One day, you will live alone. As a result, you can't 19 your family any longer. In order to deal with your 20 matters in your own life, you should learn cooking, washing and other practical (实用的) skills. Go for a journey. Travel to places of interest. In this way, you can find the culture there different from 21 of your hometown. Beautiful scenery can 22 make you relaxed. Imagine that you are lying on the warm beach in bright sunshine, with light sea wind gently blowing. Isn't it enjoyable and comfortable?Enjoy family time. Home is the place in which you can rest, receive love and care from relations. Don't always sit in front of a computer alone. Instead, the whole family should spend 23 watching a movie on the sofa together. Besides, it's great fun for family members to gather around the table, 24 sports and enjoy the relaxing times.If you follow the advice above, you will achieve health, independence (独立), peace of mind and feelings between family members. Today is the beginning of a new life. Your summer vacation must be full of 25 and success. Wish you a wonderful time!16．A．whether B．how C．when D．what17．A．have worked B．worked C．will work D．works18．A．instead of B．because of C．such as D．rather than19．A．depend on B．give up C．hear from D．look after20．A．public B．negative C．personal D．Happy21．A．it B．that C．one D．what22．A．also B．either C．too D．as23．A．some times B．some time C．sometimes D．some24．A．discussed B．to discuss C．discuss D．discussing25．A．sadness B．joy C．worry D．happy三、阅读理解I arrived in the UK last weekend to learn English．So far I have already made a few friends and had some traditional English food there．But after having three days of hamburgers．sandwiches and potatoes．I thought none could be more delicious than Chinese food．especially my favorite．huo guo．You can't imagine how excited I was when I got to know that there was going to be a free meal of hotpot to welcome the new students．On the way to the canteen．I seemed to smell huo guo in the air．To my surprise．when I went into the room．I didn't see any sign of huo guo．Where was it．With many questions in my head．I sat down to have the free meal．After talking with an English girl．I got to know that Chinese huo guo is completely different from hotpot．Chinese huo guo is written in two words．hot pot． and hotpot．one word．is a traditional English dish．Hotpot is made from mutton and onion．On the top are pieces of potatoes．People put it in the oven all day in a heavy pot on a low heat．It takes very little effort to prepare．You can often see it at parties in the UK because it's easy to prepare for a large number of people and is not expensive．Hotpot doesn't taste bad．However．I still miss huo guo．hot pot．two words!26．The writer felt excited when she thought she would．A．try traditional English food B．learn English in the UKC．have her favorite huo guo D．meet some new friends27．The underlined word"canteen"means"B"in Chinese．A．宿舍B．餐厅C．实验室D．体育馆28．Why is hotpot often prepared for parties．A．Because it's easy to prepare．B．Because it's very popular．C．Because it's quite expensive．D．Because it's good for health．29．After the free meal．the writer learnt that．A．"hotpot"wasn't"hot pot"B．hotpot took little time to cookC．hotpot wasn't traditional in the UK D．the girl knew nothing about hotpot30．What is the writer's favorite food．A．Sandwiches B．Mutton C．Hotpot D．Hot pot．四、用所给单词的正确形式填空31．His father is a __________ (bank)，and his mother is a music teacher.32．He felt __________________ (comfortable) because of possible danger or trouble. 33．The __________ (weigh) of all these things together was 150 pounds.34．I'm quite in ________________(agree) with what he said.35．When things go wrong，all of us naturally feel ________________ (disappoint)．五、句型转换36．Don’t make too much noise in class, __________________ ? （完成反义疑问句）37．Hot days make her uncomfortable.（改否定句）Hot days __________________her uncomfortable.38．They usually make me read two hours a day.（改同义句）I ________ usually made ________ read two hours a day.39．It made me kind of angry to wait for him.（改同义句）________ for him ________ me kind of angry.40．Tina has made me clean the window for half an hour. (就划线部分提问）________________ has Tina made you clean the window ?六、书面表达请以“I love music”为题，并根据要点和要求，用英语给你的朋友写一封信。
人教版七年级英语Unit 11练习及参考答案
人教版七年级英语Unit 11练习一.单项填空( ) 1.Tomorrow is Sunday.What about ?A.go shoppingB.going shoppingC.going shopingD.go shop( ) 2.He to the zoo yesterday.A.goesB.goC.goedD.went( ) 3.Uncle Mike here two hours ago.A.came toB.goesC.gotes( ) 4.Can you eat beef once?A.so manyB.so muchC.someD.many( ) 5. the evening of Sunday, she began to learn English.A.OnB.InC.AtD.For( ) 6.The girl enjoys the radio very much.A.listeningB.to listenC.listening toD.to listen to( ) 7.My homework is difficult.A.littleB.a littleC.fewD.a few( ) 8.I had to do last night.A.a lot of worksB.some worksC.many workD.a lot of work( ) 9.It was time .A.to go homeB.to go to homeC.to homeD.go home( ) 10.The boy didn’t the book.A.findB.look forC.foundD.looked for二..完形填空I had a school trip with my classmates today. We went to the Sea Museum by 1 . It took us an hour to get there. First we 2 in front of the museum. We were so happy and the photos were very 3 . Then we went inside (往里面) and 4 the museum. We also went to the 4D cinema and 5 an exciting movie.At noon we had lunch at a restaurant. I ate a large bowl 6 beef noodles. They werevery 7 ! My friend Jack also thought they were great.It was 3:00 p.m. We went back to the bus. It took 8 back to our school. We weretired, 9 we had great fun.I hope I can go there 10 . What about your school trip? Can you tell me?( ) 1. A. bike B. train C. bus D. car( ) 2. A. took photos B. went shopping C. had breakfast D. played games( ) 3. A. dark B. beautiful C. small D. popular( ) 4. A. heard B. described C. visited D. drew( ) 5. A. used B. read C. put D. watched( ) 6. A. for B. in C. of D. with( ) 7. A. delicious B. terrible C. heavy D. expensive( ) 8. A. you B. us C. me D. them( ) 9. A. but B. so C. and D. or( ) 10. A. early B. before C. too D. again三.阅读理解AMr Smith is from Canada. He likes traveling very much. Last year he came to China on vacation. He stayed in China for a week and went to a lot of beautiful places. He thinks China is a great country. He went to the Great Wall on his first day. He felt very excited when he got to the top of the Great Wall. He also went to the Tian’anmen Squar e and other beautiful places. He stayed in Beijing for three days. Then he went to Xi’an. He thinks Xi’an is an old city and has a long history. He visited a lot of places in Xi’an and had some special food there. He had a very good time in Xi’an. He also wanted to go to Shanghai, but he must go back for work. He hopes to come to China again for his next vacation.( )1. Which cities did Mr Smith visit in China?A. Beijing and Shanghai.B. Shanghai and Xi’an.C. Xi’an and Hangzhou.D. Beijing and Xi’an.( )2. Mr Smith stayed in China for ______.A. seven daysB. three daysC. six daysD. two weeks ( )3. What does the underlined word “excited” mean in Chinese?A. 难过的B. 兴奋的C. 感动的D. 害怕的( )4. Wh at did Mr Smith do in Xi’an?A. He had some special food.B. He visited a lot of places.C. He had a good rest.D. A and B.( )5. Which of the following is TRUE?A. Mr Smith is from New York.B. Mr Smith stayed in Beijing for four days.C. Mr Smith didn’t visit Shanghai.D. Mr Smith didn’t wan t to come to China next year.BAfter Charlie left middle school, he found a job in a shop. He worked there for only two moths because he wasn’t good at math and often made mistakes. Charlie wanted to find another job，but he couldn’t. He had to watch TV at home often.One day the young man was ill. He had to go to see a doctor. The doctor gave him some medicine, and asked him for fifty dollars.“It’s the best work to be a doctor in the world!”Charlie thought. Then he opened a clinic. At first many farmers went to see him，but his medicine wasn’t useful and then few people went there. One day，a traveler felt a little terrible and went into his clinic. The man looked at the medicine and asked，“Shall I be all right after I take it?”“You may be or not，”answered Charlie.( )1．Charlie worked for two months.A．at a school B．on a farm C．in a shop D．in a factory( )2．Charlie often at home after he lost the job.A．watched TV B．cleaned the floor C．listened D．played the piano( )3．The underlined word “clinic” means “ ”in Chinese.A．牧场B．俱乐部C．饭店D．诊所( )4．Many went to his clinic at first.A．children B．farmers C．teachers D．doctors( )5．Which of the following is TRUE?A．Charlie was good at math B．Charlie wanted to open a big shopC．Many people liked to ask Charlie for help at last D．Charlie was not a good doctor四.根据句意及首字母提示完成单词1.He went to the movies. What a you?2.Do you often go s in the supermarket on Sundays?3.How did you s your weekend?4.I often see talk s on Sundays.5.She h dinner at the restaurant last night.6.My brother （study）for the math test last night.7.His mother often does some （read）in the evening.8.I （not do）my homework last Monday.9.Tom wants （be）an English teacher.10.What she （do）yesterday morning?五.句型转换1.Mary played volleyball yesterday afternoon.（改为否定句）Mary volleyball yesterday afternoon.2.I was very happy last weekend.（就画线部分提问）you last weekend?3.John has no brother and no sister.（改为同义句）John have a brother a sister.4.Tina did very well in her English exam.（改为一般疑问句）Tina very well in her English exam?5.My father has a busy weekend every week.（用last week改写）My father a busy weekend last week.六.根据汉语意思完成句子1. 李叔叔对中国历史感兴趣。
人教版七年级下册英语第十一单元同步练习题 【附答案】
人教版七年级下册英语unit 11 同步练习题目录第一课时( Section A 1a—1c ) (1)Ⅰ. 单词拼写，根据句意和首字母提示写出单词。
(1)Ⅱ. 单项选择。
(1)Ⅱ. 按要求完成句子。
(1)第二课时( Section A 2a—2d ) (3)Ⅱ. 根据汉语提示，用适当形式填空。
(3)Ⅱ. 用括号内所给单词的正确形式填空。
(3)Ⅱ. 单项选择 (3)Ⅱ. 按要求完成句子。
每空一词。
(4)Ⅱ. 短文填空。
(4)第三课时( Section A Grammar Focus—3c ) (6)Ⅰ. 单项选择。
(6)Ⅱ. 用括号内所给单词的正确形式填空。
(6)Ⅱ. 阅读理解。
(6)第四课时( Section B 1a—1d ) (8)Ⅰ. 写出下列动词的过去式。
(8)Ⅱ. 单项选择 (8)Ⅲ. 补全对话，方框中有两项是多余的。
(9)第五课时( Section B 2a—2c ) (10)Ⅱ. 单词拼写。
根据句意和首字母提示写出单词。
(10)Ⅱ. 按要求完成句子，每空一词，含缩略词。
(10)Ⅲ. 单项选择。
(10)Ⅱ 完形填空。
(11)第六课时( Section B 3a—Self Check ) (13)Ⅰ. 单项选择。
(13)Ⅱ 按要求完成句子。
(13)Ⅲ任务型阅读。
(13)Unit 11 How was your school trip?第一课时( Section A 1a—1c )Ⅰ. 单词拼写，根据句意和首字母提示写出单词。
1．I often help my mother f_____________ chickens.2．We visited the zoo last Sunday, and saw q_____________ a lot of monkeys. 3．His uncle is a f_____________ . He often works on the farm.4．Look, my son is riding a h_____________ over there.5．I m_____________ a cow with my friend on the farm last Saturday.Ⅱ. 单项选择。
最新人教版九年级英语全册Unit11单元同步练习题及答案解析(精品试卷)
Section B (Self Check)一、单项选择。
( )1.Lisa was still very weak when she left hospital. But after a week'srest, she felt much and went back to school.A. goodB. betterC. badD. worse( )2. I don't understand the text there are few new words in it.A. even thoughB. becauseC. ifD. and( )3. Please play with her and let her not feel .A. leave outB. leaving outC. to leave outD. left out( )4. I tried two bookshops for the dictionary I wanted, but of them had it.A. eitherB. bothC. neitherD. none( )5. Neither Li Hua nor I good at writing.A. amB. isC. areD. be ( )6. you speak, your.English will be.A. The less; the moreB. The more;the betterC. The less; the betterD. The more;the less( )7. What John said just now us uncomfortable.A. soundedB. feltC. madeD. let( )8. I had a good day today. , I received a gift from mypen pal. And then I was invited to Jack's birthday party.A.In generalB. After allC. To start withD. To be honest( )9. --Did you watch the soccer game yesterday?--Yes, Mike kicked the ball into his own twice.A. teamB. goalC. houseD. door( ) 10.-- ?--It makes me very sadA.Do you want to see the movieB. How do you feel about the movieC. Have you seen the movieD. What about going to the movies二、按要求改写句子，每空一词。
人教版九年级下册化学同步训练第十一单元测评(B)(含答案)
第十一单元测评(B)(时间:45分钟满分:100分)可能用到的相对原子质量:H 1 C 12N 14O 16Na 23Cl 35.5Ag 108一、快乐点击(本大题共10小题,每小题3分,共30分。
下列每小题给出的四个选项中,只有一项是符合题目要求的)1.下列物质中属于盐的是()A.熟石灰B.碳酸钾C.乙醇D.烧碱2.氮肥能促进作物的茎、叶生长茂盛,叶色浓绿;钾肥能促进作物茎秆健壮,增强抗倒伏能力;磷肥能促进作物根系发达。
小李家的庄稼茎秆细小,出现倒伏现象,则小李家庄稼可选择施用的化肥是()A.碳铵(NH4HCO3)B.磷矿粉[Ca3(PO4)2]C.磷酸氢二铵[(NH4)2HPO4]D.氯化钾(KCl)3.实验室有四瓶失去标签的无色溶液,分别是碳酸钠溶液、氯化钡溶液、硫酸钠溶液和稀盐酸中的一种。
为了鉴别它们,将上述溶液分别标记为甲、乙、丙、丁,做如下实验:各取少许,将甲分别滴加到另外三种溶液中,观察到乙和丁中产生白色沉淀,丙中无明显现象。
据此可判断甲是()A.碳酸钠溶液B.氯化钡溶液C.硫酸钠溶液D.稀盐酸4.下列物质能大量共存于pH=13的水溶液中的是()A.硝酸、氯化钠B.硝酸钾、氯化铜C.碳酸铵、熟石灰D.硝酸钠、氯化钡5.粗盐中难溶性杂质的去除过程中,涉及称量、溶解、过滤、蒸发等过程。
下列说法不正确的是()A.称量时粗盐放在天平左盘的称量纸上B.粗盐溶解时,要用玻璃棒不断搅拌C.蒸发时,在恰好蒸干时停止加热D.过滤时漏斗下端尖嘴处紧靠烧杯内壁6.下列各组变化中,每个转化在一定条件下均能一步实现的是()A.①④B.①②④C.①③④D.②③7.下列各组物质混合后,不产生沉淀或气体,且能得到无色溶液的是()A.氢氧化钡溶液和稀硫酸B.氧化铜粉末和稀硝酸C.石灰水和稀盐酸D.氯化铁溶液和烧碱溶液8.用括号内的试剂除去下列物质中的杂质,其中不正确的是()A.氢氧化钠溶液中混有的碳酸钠(石灰水)B.硝酸铜溶液中混有的硝酸银(铜粉)C.二氧化碳中混有的氯化氢气体(氢氧化钠溶液)D.氧气中混有的水蒸气(浓硫酸)9.在氢氧化钠溶液中加入盐酸,至恰好完全反应,反应的微观示意图如下,下列有关认识错误的是()A.反应结束时溶液的pH=7B.反应前后元素的种类没有变化C.酸与碱的反应属于复分解反应D.该微观图还可说明所有物质都是由分子构成的10.某白色固体A,含有K2SO4、NaOH、CaCO3、BaCl2中的一种或几种,取少量A进行如下实验。
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人教版第十一单元同步练习题含答案11.1《生活中常见的盐》基础巩固1．某同学来到他家厨房，他不可能找到的调味品是（）A．食盐（氯化钠）A．食醋（醋酸）A．料酒（乙醇）D．胆矾（硫酸铜晶体）2．下列关于“盐”的说法中，不正确的是（）A．“请往菜中加点盐”中的“盐”特指食盐（NaCl）B．化学上所说的盐指的就是生活中作调味品的食盐C．化学上所说的盐指的就是一类物质的总称D．食盐每天摄入量不能太多，否则不利于健康3．下列有关物质的化学式、名称、俗名不完全对应的是（）A．NaCl、氯化钠、食盐B．CaO、氧化钙、熟石灰C．Na2CO3、碳酸钠、纯碱D．NaOH、氢氧化钠、烧碱4．下列有关“粗盐中难溶性杂质的去除”实验中说法不正确的是（）A．多加水，让粗盐加速溶解B．玻璃棒用了4次，但作用各不相同C．粗盐经过溶解、过滤、蒸发、结晶可以得到初步提纯D．当蒸发皿中出现较多量固体时，停止加热，利用余热使滤液蒸干5．下列两种物质的溶液混合后，能发生反应，且溶液的总质量不会发改变的是（）A．氢氧化钠溶液和稀盐酸B．碳酸钠溶液和稀盐酸C．氯化钠溶液和稀硫酸D．碳酸钠溶液和氯化钙溶液6．物质X可发生下列所示的两个反应，则X可能是（）①X＋酸→盐＋水；②X＋非金属氧化物→盐＋水。
A．HCl B．CO C．NaOH D．CaO7．下列各组物质在水溶液中能大量共存，且形成无色溶液的是（）A．NaCl、BaCl2 、Na2CO3B．KNO3、HCl、CaCl2C．H2SO4、FeCl3、NaNO3D．NaOH、HNO3、NH4NO38．家庭加工馒头、面包和饼干等食品时，常在面粉中加入膨松剂（如碳酸氢钠），蒸制或烘焙食品中产生大量气体，使面团疏松、多孔，制作的食品松软或酥脆，易于消化吸收。
阅读上面信息后，回答：⑴信息中提供的膨松剂是（填俗名）；⑵碳酸氢钠是一种性的化合物（填“可溶”或“不溶”）；⑶碳酸氢钠能使蒸制或烘焙的食品疏松多孔，原理是（用化学方程式解释）。
9．如图是氯化钠溶液的配制和粗盐中难溶性杂质的去除(需要计算粗盐的产率)实验活动中的部分操作。
⑴仪器a的名称是。
⑵配制6%的氯化钠溶液和粗盐中难溶性杂质的去除都要用到的实验操作是（填序号）。
⑶A中玻璃棒搅拌的作用是使氯化钠。
如果B中的滤液仍然浑浊，就应该。
D操作中，当观察到蒸发皿中出现时，停止加热。
10．碳酸钠在生产和生活中有着广泛的用途。
某同学为了学习碳酸钠的化学性质，开展了如下探究活动。
【设计与实验】分别取适量的碳酸钠溶液于4支试管中，完成如右图所示的实验。
⑴实验一中，观察到溶液变为蓝色。
⑵实验二中，当观察到不再产生气泡时，溶液中存在的阴离子是 (填化学符号)。
⑶实验三中，反应的化学方程式为。
⑷实验四中，看到有白色沉淀产生，该化学反应的基本类型是。
【得出结论】根据以上实验，得出了碳酸钠的化学性质，即：碳酸钠能与指示剂反应、能与酸反应、能与某些碱反应、能与某些溶液反应。
【反思与提高】⑴在完成实验三时没有看到明显的实验现象，可能的原因是。
⑵发现草木灰的主要成分碳酸钾在组成上与碳酸钠有相似之处，于是对草木灰的主要成分进行了检验，其实验操作、现象和结论是。
能力提升1．新冠肺炎疫情期间，为预防病毒传染和扩散，要求用84消毒液洗手。
84消毒液的主要成分是次氯酸钠（NaClO），则NaClO属于（）A．盐B．酸C．碱D．氧化物2．下列有关物质用途的说法，不正确的是（）A．氯化钠可用作食品调味剂 B．碳酸氢钠可用来治疗胃酸过多C．生石灰可作为食品干燥剂 D．铁制容器可用来盛装波尔多液3．下列关于“粗盐中难溶性杂质的去除”的实验活动，其中操作有错误的是（）A．粗盐溶液过滤后，如果滤液仍浑浊，应更换滤纸再过滤一次B．蒸发皿放在铁圈上直接用酒精灯加热C．蒸发滤液时要用玻璃棒不断搅拌D．用酒精灯持续加热到蒸发皿内水分全部蒸干4．下列试剂中，能把稀硫酸、KOH溶液、CaCl2溶液一次性鉴别出来的是（）A．KCl溶液B．K2CO3溶液C．稀盐酸D．NaNO3溶液5．甲、乙、丙、丁四种物质，存在关系：甲＋乙→丙＋丁。
下列说法正确的是（）A．若丙、丁为盐和水，则甲、乙一定为酸和碱B．若甲为单质，则该反应一定是置换反应C．若该反应为复分解反应，则生成物中一定有水D．若甲为10g、乙为20g，则反应生成丙和丁的质量总和一定不大于30g6．下列离子在水中能大量共存，并形成无色溶液的是（）A．Fe3+、Na+、NO3-、Cl-C．H+、K+、SO42-、OH-B．K+、Na+、Al3+、SO42-D．Mg2+、NO3-、OH-、Cl-7．某同学为除去食盐水中的Na2SO4杂质，进行了以下实验：下列有关说法错误的（）A．X为BaCl2溶液 B．Y为Na2CO3C．Z为稀盐酸 D．步骤③与④可交换8．A与B有如下的反应：A＋B→C＋D，请根据题意解答：⑴若A为一种钾盐，低钠盐是将普通碘盐中的部分氯化钠用C代替。
若A、B两溶液恰好反应完全，生成能使澄清石灰水的无色气体，则反应后溶液的PH 7（填“＜”、“＞”或“＝”）；写出A、B两溶液反应的化学方程式。
⑵若B常用来改良酸性土壤；D是重要的化工原料且与B的类别相同；B与CO2反应也能生成C；则A的化学式为，C的用途是（只要写一种），写出B溶液与CO2反应的化学方程式。
9．X是常见的碳酸盐，可发生如下图所示的变化，部分生成物省略。
根据下图回答问题。
⑴C的化学式是。
⑵写出图中①反应的化学方程式，该反应基本类型是。
8．⑴CaCO3；⑵Na2CO3＋Ca(OH)2=CaCO3↓+2NaOH；复分解反应。
补钙剂、建筑材料等。
10．取某碳酸钠样品放入烧杯中，加入95.8g水充分溶解，再向其中加入稀硫酸，反应放出气体的总质量与所加入稀硫酸的质量关系曲线如图所示，请通过计算回答：⑴当加入196g稀硫酸时，放出气体的质量为g；⑵计算加入的稀硫酸溶液中溶质的质量分数为；⑶求出加入98g稀硫酸（即A点）时烧杯中溶液中溶质的质量分数（写出计算过程）。
【参考答案】基础巩固1～7．D、B、B、A、AC、B；8．⑴NaHCO3；⑵可溶；⑶2NaHCO3Na2CO3＋H2O＋CO2↑。
9．⑴漏斗；⑵AC；⑶搅拌加快溶解速率；检查后重新过滤；大量晶体。
10．⑵SO42-；⑶Ca(OH)2＋Na2CO3＝CaCO3↓＋2NaOH；⑷复分解反应。
盐。
【反思与提高】⑴澄清石灰水完全变质；⑵取适量草木灰的浸泡液于试管中，滴加稀盐酸；实验现象：产生气泡；实验结论：草木灰主要成分是碳酸钾。
能力提升1～7．A、D、D、B、D、C、D；8．⑴＝；K2CO3＋2HCl＝2KCl＋CO2↑＋H2O；⑵Na2CO3；补钙剂、建筑材料等；CO2＋Ca(OH)2＝CaCO3↓＋H2O。
9．⑴CaCO3；⑵Na2CO3＋Ca(OH)2=CaCO3↓+2NaOH；复分解反应。
补钙剂、建筑材料等。
10．⑴4.4 g；⑵10%；⑶7.1%11.2 化学肥料一．选择题（共15小题）1．重过磷酸钙[Ca（H2PO4）2]是一种常用的化学肥料，它属于（）A．氮肥B．磷肥C．钾肥D．复合肥2．碳酸氢铵（NH4HCO3）既是食品加工中常见的添加剂，也是农业上常用的一种化肥，这种化肥属于（）A．氮肥B．磷肥C．钾肥D．复合肥料3．今年春季，我市多地出现旱情，为了增强农作物的抗旱能力，小刚建议父母施用磷肥，下列物质属于磷肥的是（）A．K2SO4B．CO（NH2）2C．Ca3（PO4）2D．KNO34．物质的组成和构成决定性质，性质决定用途。
下列叙述正确的是（）A．氢氧化钠溶液和碳酸钠溶液都显碱性，因为它们在溶解时都电离出了OH ﹣B．尿素（CO（NH2）2）、HNO3、NH4HCO3中都含氮元素，可用作氮肥C．汽油是一种有机物，可以作为有机溶剂使用D．生铁坚硬，可以作医疗手术器械5．农作物生长需要含较多氯、磷、钾元素的化肥，下列关于化肥的有关说法正确的是（）A．氮肥能促进农作物根系发达，增强吸收养分和抗寒抗旱能力B．常见的磷肥有过磷酸钙，过磷酸钙的化学式是Ca（H2PO4）2C．（NH4）2SO4化肥不能与碱性物质混合施用，因为铵盐与碱混合能产生一种使湿润的蓝色石蕊试纸变红的气体，从而降低肥效D．KNO3属于一种复合肥料6．下列说法正确的是（）A．水能降温，实验桌面上的酒精燃烧可用水浇灭B．土壤中缺乏氮、钾两种营养元素，可将氯化铵和含碳酸钾的草木灰混合施用C．向鸡蛋清溶液中加入饱和硫酸铵溶液，有白色沉淀析出，发生的是物理变化D．将t℃的硝酸钾不饱和溶液变为饱和溶液的方法有：加入硝酸钾、蒸发溶剂、升高温度7．小强发现外公家的庄稼生长不茂盛，叶色发黄，茎杆较细，还出现倒伏现象，他建议外公施一种复合肥料，这种复合肥料是（）A．CO（NH2）2B．KCl C．Ca3（PO4）2D．KNO38．下列与化肥相关说法错误的是（）A．玉米叶片发黄，可施用适量氨水B．硫酸钾可增强植物抗倒伏和病虫害的能力C．水稻结实率低、籽粒干瘪，可施用适量磷矿粉D．熟石灰可检验某复合肥中是否含氮元素9．化肥对提高农作物的产量具有重要作用。
现有：氯化钾、磷酸钙、硫酸铵、硝酸钾四种化肥，其中从外观即可与其他化肥区分开的是（）A．氯化钾B．磷酸钙C．硫酸铵D．硝酸钾10．小明用“闻气味”的方法将家里的一种化肥鉴别出来了，这种化肥是（）A．硫酸钾B．碳酸氢铵C．硝酸铵D．尿素[CO（NH2）2]11．下列化肥：尿素、磷矿粉、氯化铵，按下列方法，能将它们区别开来的是（）A．看颜色，与碱混合B．溶解性，闻气味C．看状态，溶解性D．闻气味，与碱混合12．如图是某同学鉴别NH4HCO3、NH4C1、KCl三种化肥的过程，其中试剂甲和乙分别可能是（）A．甲：熟石灰；乙：稀盐酸B．甲：水；乙：氢氧化钠溶液C．甲：氢氧化钠溶液；乙：水D．甲：稀盐酸；乙：氯化钠溶液13．下列实验操作符合科学的是（）A．使用燃着的木条检验天然气是否泄漏B．加入熟石灰研磨可以检验铵态氮肥C．探究海波的熔化特点时，用酒精灯外焰对装有海波的试管底部加热D．安装家庭电路时，控制灯泡的开关应装在零线上14．下列有关实验现象的描述不正确的是（）A．电解水实验中，与电源正极相连的玻璃管内生成的气体能使带火星的木条复燃B．向硫酸铜溶液中逐滴加入稀氢氧化钠溶液，可以观察到有蓝色沉淀生成C．铵态氮肥与碱（氢氧化钠）混合加热，产生的气体能使湿润的红色石蕊试纸变蓝D．铁丝在空气中剧烈燃烧，火星四射，放出大量的热，生产一种白色固体15．关爱健康、保护环境，下列做法正确的是（）A．大量使用农药、化肥，使农作物增产B．焚烧树叶，减少垃圾的运输量C．加高烟囱，减少二氧化硫对环境的污染D．工业废气处理后再排放，保护大气二．填空题（共3小题）16．化学帮助我们认识身边的物质。