九年级七单元练习

九年级上册英语第七单元测试题及答案九年级上册英语第七单元测试题及答案对于九年级的,九年级的学生党在平时应该有针对性的做好相应的英语练习呢?以下是店铺给你推荐的九年级英语第七单元测试题及答案，希望对你有帮助!九年级上册英语第七单元测试题一. 单项选择(每小题1分，共15分)从A、B、C、D四个选项中选择可以填入空白处的最佳答案。

( )1. Our English teacher is strict ______ us, but we still like her very much.A. inB. withC. fromD. to( )2. I’m worried about the ______ of the product. I think it may be dangerous.A. priceB. serviceC. licenseD. safety( )3 —Dad, our TV doesn’t work.—I’ll get it ______ this afternoon.A. repairB. to repairC. repairedD. repairing( )4. —Danny, what do you think of the article?—I’m sorry. I haven’t had a chance ______ it yet.A. to readB. readingC. to writeD. writing( )5. Mom, I’m an 18-year-old boy. I think I’m ______ to choose my own friends.A. young enoughB. enough youngC. old enoughD. enough old( )6. I hope all of you will come and actively ______ me in thetalent show.A. changeB. supportC. liftD. hug( )7. Ann, you ______ shut the door, or the rain will come in.A. mustB. canC. mustn’tD. can’t( )8. Mary ______ seeing her favorite singer at the concert so that she stayed awake all night.A. was worried aboutB. was famous forC. was excited aboutD. was bored with( )9. Paul has always regretted ______ the car. Now he has to take the bus to work.A. to sellB. sellingC. buyingD. to buy( )10. Our teacher told us to ______ junk food. It’s not healthy.A. pay attention toB. fall in love withC. keep away fromD. get used to( )11. Mrs. Green said the plates ______ right away, or they would become difficult to wash.A. shouldn’t washB. shouldn’t be washedC. should washD. should be washed( )12. How great the driver was! He ______ to avoid an accident this morning.A. managedB. refusedC. continuedD. expected( )13. What ______ weather! The wind is blowing strongly.A. normalB. awfulC. lovelyD. different( )14. ______ about it is a waste of time. We should do something meaningful.A. ArgueB. ArguingC. To arguingD. Argues( )15. —Susan stays in her bedroom all day.—______. She needs to spend time with friends.A. No wayB. I don’t agreeC. That’s too badD. Me, too二. 完形填空(每小题1分，共10分)先通读下面的短文，掌握其大意，然后从A、B、C、D四个选项中选择可以填入空白处的`最佳答案。

UNIT 7语法练习一．根据首字母提示,补写下列单词,使句意完整.(10)1.The CCTV station always p________ us with information about the latest news. I love to watch it.2.Could you please t______ this story into Chinese?3.The P_______ is the largest ocean in the world.4. A bicycle is often more c________ than a car in Shanghai because the traffic is too heavy.5. My family are c______ going to Dalian to spend our vacations.6. My sister is a l______ girl and always full of energy.7. He is s______money, so he can buy a new computer.8. Shanghai lies in the e____________ part of China.9. The bus was so c_______________ that they had no room to stand.10. ---Would you like to go there with us? ---It d____________ on how the weather is.二.用括号内所给词的适当形式填空：(10)1.We need a _____(peace) world.2. I’d like to go somewhere ______(relax).3. I love places where the people are really _______（friend）.4.Why not________ (consider) visiting Japan?5._______(live) in Singapore is quite expensive.6.Isn’t Kunming _______ (suppose) to be very hot?7.Would you like ________（drink）some orange juice?8.There are ____ （thousand）of people in the mall on National Day.9.They are willing _____ (work) in my firm.10. Wangwang is a ______________(love) dog. Everyone likes it very much.1..______ _____ this story, what’s the most important in the world?2. Please _____ _____ _____ your dream. You will achieve it.3.______ _____ , the weather there is very fine. You needn’t worry about it.4. He has _______ _____ _____ friends in this city.5.______ you ______ ______ answer the question, Laura?四. 单项选择.(15)( ) 1. Who can find another answer_________ this question?A. toB. forC. ofD. with( )2. They are going to have ________ holiday next month.A. a two weeksB. two-weekC. a two-weekD. two weeks ( )3.“I hope _________ play soccer with us tomorrow. ” “Yes, I hope _________. ”A. him not to, not tooB. he won’t, it tooC. him not to, that tooD. he won’t, so too( )4.Can you provide us _________ some information _______ the computer?A. for, withB. with, aboutC. about, withD. with, with ( )5.—There is a ticket on the floor, is it yours? —Oh, yes, it’s mine.—Let me _____for you.A. to pick up itB. to pick it upC. pick up itD. pick it up( ) 6. The teacher asked the boys ____on the wall.A. to not drawB. don’t drawC. not dr aw toD. not to draw( ) 7.-How about going hiking this weekend?-Sorry, I prefer _____rather than _____.A. to stay at home, go outB. to go out, stay at homeC. staying at home, go outD. going out, stay at home.（）8. The two men walked _________ the forest and got to a small house.A. acrossB. throughC. crossingD. over( )9. He is supposed _____ there on time.A.to beB. beingC. is D .was( )10. I love the place____is fascinating.A.whereB. whoC. itD. that( )11. Mr West showed me around the library __________ he was working,A. whichB. whereC. thatD. who( )12. ---How long has your father __________? ---Since last year.A. be leftB. leftC. been leavingD. been away ( )13. I’d like you _____ something about Beijing Olympics.A. sayB. to sayC. sayingD. said( )14. -- Would you like a cup of coffee? --_________________.A. No, thanks.B. I think soC. That’s all right.D. Yes, OK.( )15. We’d like a room _______ a big color TV in it.A. andB. hasC. haveD. with五. 句型转换(7)1. The weather is always warm in these places. I like them. (合成一句)I like the places __________ the weather _________ always warm.2. I hope that I can visit Hainan Island some day. （改为同义句）I hope ________ ________ Hainan Island some day.3.My parents wish me to be a policeman when I am older. （改为同义句）My parents hope that I __________ _________ a policeman when I am older.4. This is the book. I bought this book two days ago.(合并为一句)This is the book __________ __________ __________ two days ago.5. I’d like to visit th e city again in two years. （改为一般疑句问）__________ ___________ like to visit the city again in two years?七．完形填空(10)Nowadays, more and more people like to travel in their holidays. The other day I read a report about the _1__ people spend their holidays. It is reported that in recent years several new holiday habits have developed. __2_ them, the most interesting one is the growth of holiday camps.From the report we can see that in 1990, forty percent of people stayed at __3_ for their holidays. However, now the percentage has fallen to nine percent. More people go out for fun. People enjoy the fresh air, clean water and green hills when they go camping in places far _4__ the city. In 1990, thirty-eight percent of people _5__ going to the seaside _6__ in 2002 only twenty-seven percent preferred to go there. What great changes!_7__ have those changes taken place? I think there are several reasons. First, it’s because people can _8__ to travel. Second, people prefer to live a high quality and colorful life. Third, their _9__ to relaxation have changed. Fewer and fewer people want to save _10__ money by living a simple life.( )1.A. time B. ways C. meaning D. cities( )2.A. Between B. Around C. Among D. With( )3.A. places of interest B villages C. seaside D. home( )4.A. from B. away C. to D. of( )5.A. hoped B. enjoyed C.stopped D. disliked( )6.A. when B. where C. while D. as( )7.A. What B. Why C. How D. When( )8.A. cost B. save C. afford D. spend( )9.A. attitudes B. rules C. games D. partners( )10.A. little B. a lot of C. few D. no参考答案：一、1.provides 2.translate 3.Pacific 4.convenient 5.considering6.lively7.saving8.eastern9.crowded 10.depends二、1.peaceful 2.to relax 3.friendly 4.consider 5.Living6.supposed7.to drink8.thansands9.to work 10.lovely三、1.provided with 2.According to 3.In general 4.quite a few 5.Are willing to四、1-5 ACDBD 6-10 DABAD 11-15 CDBAD五、1.because is 2. to visit 3.will be 4.which I bought 5.Would you六、1-5 BCDAB 6-10 CBCAB。

九年级化学上册第七单元测试题-人教版(含答案) 班级___________姓名_________ 成绩__________本卷可能用到的相对原子质量：H—1 C—12 O—16 N—14 Cl—35.5 Ca—40一．单项选择题（本大题包括8小题，每小题有四个选项，其中只有一个选项符合题意）1．【基础题】在空气中放置的干柴没有燃烧的原因是（）A．没有与氧气接触B．干柴是固体难燃烧C．温度没有达到它的着火点D．干柴不是可燃物2．【基础题】下列处理事故的方法中正确的是（）A．电器着火用水扑灭B．厨房煤气泄露，立即打开排气扇C．炒菜时油锅着火，立即盖上锅盖D．图书馆内图书着火，用水扑灭3．【基础题】今年春节，江西实行“禁燃令”。

如图表示“禁止燃放烟花爆竹”标志的是（）4．【基础题】强化安全意识，提升安全素养。

下列做法错误的是（）A．天然气泄漏，立即关闭阀门并开窗通风B．发现火灾立即拨打119火警电话C．发生火灾时，用湿毛巾捂住口鼻，蹲下靠近地面，迅速离开火灾现场D．高楼住宅发生火灾时，如果楼内有电梯，则迅速使用电梯逃生5．【提升题】“世界真奇妙”某同学把一条粗金属丝绕成线圈（如图4），罩在一支蜡烛的火焰上，火焰很快就熄灭了。

对这一实验的利用的原理是（）A．隔绝了可燃物B．金属线圈内没有了氧气C．使可燃物的温度降到了着火点以下图4D．金属丝没有可燃性6．【提升题】对下列词语的有关化学原理解释不合理的是（）A．火上浇油——隔绝空气B．风助火威——为燃烧提供足够多的氧气C．釜底抽薪——燃烧需要可燃物D．钻木取火——使温度达到可燃物的着火点7．【提升题】“是真是假”你认为下列传闻缺乏科学依据的，是假的是（）A．冬天，某村有一家人关门闭户在家烤火，导致全家煤气中毒B．某地有个神秘的“死亡谷”，野兔和狗等低矮的动物走进去常会窒息而死C．有人声称他发明了一种催化剂，只需添加少量，就能将水变成汽油D．被围困在火灾区时，用湿毛巾捂住口鼻低下身子逃生8．【拓展题】古语道：“人要实，火要虚”。

人教版九年级英语第七单元测试题及答案Revised by BETTY on December 25,2020Unit7单元重点短语英语汉语英语汉语part-time job兼职工作get earspierced穿耳洞talk back顶嘴regretdoing后悔做某事keep ...away from避免接近，远离fail a test考试不及格make one’s owndecision 自己做决定pass atest通过考试get in the way of挡...的路；妨碍单元重点句子英语汉语No way!不行！Sixteen-year-olds should be allowedto get their ears pierced.应该允许16岁的孩子穿耳洞。

When I was a tiny baby crying all night, my mom sang tome and stayed by my side.当我还是一个整夜哭闹的小宝宝时，妈妈会给我唱歌，陪伴在我身旁。

Now I’m adult, thinking back to those times.现在我已经长大成人，回想起过去的岁月。

Only then will I have a chance to achieve my dream. 只有那样我才会有机会实现我的梦想。

Unit7单元检测题Ⅰ.选择填空从每题Ａ、B、Ｃ、Ｄ四个选项中，选出一个最佳答案。

（20分）（） sh ouldn’t be allowed ________,they are not serious enough.drive B. drive C. driving driving（）2. We all want to see him ______his dreams.A. achieveB. achieving achieve D. achieved（）3. He regretted _______that apartment three years ago.A. not buyingB. not boughtC. not to buyD. was not buying（）4. The room ________every day.A. cleansB. must clean cleaned D. must be cleaned（）5. Sorry, your car ______in front of the hotel.A. can put not put C. can’t be put D. can be not put（）6.—Jim enjoys listening to pop music.______________.A. So does Helen.B. Also is HelenC. Helen likes also?D. So Helen does（）7. Our English teacher is very strict _______ us and he is strict _________his teaching.A. with, atB. with, withC. at, atD. with, in（）8. —What’s the matter?—They said I should not be allowedhere. They don’t allow __in the waiting room.A. smoking, to smokeB. to smoke, smokeC. to smoke, smokingD. smoking, smoking（）9. He doesn’t do his homework ______________, though he has______________.A. carefully enough, enough timeB. enough carelessly, time enoughC. carelessly enough, enough timeD. enough carefully，enough time（）10. The little child was too _____________ to hear the end of the long speech.A. sleepyB. asleepC. sleepD. sleeping（）11. Everyone ____________to have at least eight__________sleep at night.A. needs, hour’sB. need, hours’C. needed, hour’sD. needs, hours’（）12. We should go to school at 8:00 ______________ school mornings.A. atB. in?C. onD. of（）13. Something is wrong with my will get it ___________ .A. repairB. repairingC. to repairD. repaired（）14. ——Excuse me, you are _________ of my passing through.——I’m sorry, here you go.A. on the wayB. in the wayC. out the wayD. off the way（）15. Jill didn’t finish the homework,_________.A. eitherB. tooC. alsoD. neither（）16. You must concentrate more _________ your English.A. to?B. inC. onD. at（）17. That is a good way to keep _________ teachers and students happy.A. eitherB. noneC. allD. both（）18. Don’t get_________ when you study in groups.A. noiseB. noisesC. noisyD. noising（）19. We should learn _________ each other.A. toB. fromC. forD. of（）20. The children often take time to do things like_________.A. volunteerB. to volunteerC. volunteersD. volunteeringII完形填空阅读下面短文，从每题A、B、C、D四个选项中，选出一个能填入文章中相应空白处的最佳答案。

2024年人教版九年级上册语文第七单元课后练习题（含答案和概念）试题部分一、选择题：1. 下列词语中，加点字的注音全都正确的一项是（）A. 羁绊（bàn）摺皱（zhé）惬意（qiè）B. 惨淡（cǎn）惨案（cǎn）惨遭（cǎn）C. 豁免（huò）豁达（huò）豁口（huō）D. 挣扎（zhá）挣脱（zèng）挣钱（zhèng）2. 下列句子中，加点成语使用正确的一项是（）A. 这部电影情节跌宕起伏，引人入胜，让人拍案叫绝。

B. 老师在讲台上侃侃而谈，同学们听得如痴如醉。

C. 他这个人性格孤僻，不合群，大家都对他敬而远之。

D. 这个方案虽然有些风险，但我们还是要勇于尝试，不能因噎废食。

3. 下列句子中，没有语病的一项是（）A. 通过这次活动，使同学们认识到了保护环境的重要性。

B. 老师要求同学们不仅要认真听讲，还要做好课堂笔记。

C. 为了提高自己的学习成绩，他每天晚上都坚持做课外练习。

D. 在这次比赛中，他获得了第一名，赢得了同学们的尊敬和爱戴。

4. 下列文学常识表述正确的一项是（）A. 《范进中举》是清代小说家吴敬梓创作的长篇讽刺小说。

B. 《水浒传》是我国四大名著之一，作者是施耐庵。

C. 《聊斋志异》是清代蒲松龄创作的一部文言短篇小说集。

D. 《红楼梦》是我国古代小说的高峰，作者是曹雪芹和鲁迅。

5. 下列诗句中，表达了对友情深厚的一首是（）A. 海内存知己，天涯若比邻。

B. 莫愁前路无知己，天下谁人不识君。

C. 劝君更尽一杯酒，西出阳关无故人。

D. 故人西辞黄鹤楼，烟花三月下扬州。

6. 下列关于《出师表》的说法，正确的一项是（）A. 《出师表》是诸葛亮为了请求刘备出兵伐吴而写的。

B. 《出师表》中诸葛亮表达了自己忠诚报国的决心。

C. 《出师表》中诸葛亮详细分析了当时的形势。

D. 《出师表》是诸葛亮临终前写给刘备的遗书。

Unit7 Journeys单元练习一、听力(听力)（共25小题；共25分）一、录音中有五个句子，听每一个句子一遍后，从每小题A、B、C三个选项当选择相应答语。

1. A. Yes, please. B. Sure, here you are. C. No, not at all.2. A. I'd like to go somewhere relaxing.B. I'd like to say "Thank you" to you.C. I'd like to play computer games.3. A. It's a good place to visit.B. There is too much to do there.C. It's too hot and too far.4. A. I want to go to Beijing.B. It must be somewhere interesting.C. I don't want to go anywhere.5. A. That's a good idea. B. I think so. C. Thank you.二、录音中有五组对话，听每组对话二遍后，从每小题A、B、C三个选项当选择正确答案。

6. Where will Kathy go this winter vacation?A. She'd like to go to Hong Kong.B. She'd like to go to Singapore.C. She'd like to go to Sydney.7. What kind of place would Nick's grandparents like to visit?A. Somewhere relaxing and inexpensive.B. Somewhere not too touristy.C. Somewhere thrilling.8. Where do you think Gina's parents would like to go?A. They might go to Tokyo.B. They might go to New York.C. They might go to Sydney.9. Why does the woman want to visit Paris?A. Because it is one of the liveliest cities in Europe.B. Because there are some fantastic things to see.C. Both A and B.10. Who wants to start to work after finishing the education?A. Lily.B. Lucy.C. Both Lily and Lucy.三、录音中有一段对话，听对话两遍后，从每小题A、B、C当选出能回答每一个问题的正确答案。

2024年人教版九年级上册生物第七单元课后练习题（含答案和概念）试题部分一、选择题：1. 下列哪个结构是植物细胞特有的？（）A. 细胞壁B. 溶酶体C. 叶绿体D. 中心体2. 下列哪个生物属于单细胞生物？（）A. 草履虫B. 青蛙C. 蝗虫D. 猫3. 生物体结构和功能的基本单位是（）A. 原子B. 分子C. 细胞D. 组织4. 下列哪种物质属于植物细胞中的能量转换器？（）A. 线粒体B. 叶绿体C. 内质网D. 高尔基体5. 下列哪个生物具有细胞壁？（）A. 人B. 草莓C. 鲸鱼D. 鸡6. 下列哪个结构在动物细胞和植物细胞中都存在？（）A. 细胞壁B. 叶绿体C. 线粒体D. 液泡7. 下列哪个过程是细胞分裂中最重要的环节？（）A. 细胞质分裂B. 核分裂C. 质壁分离D. 胞吐8. 生物体生长发育的基础是（）A. 细胞分裂B. 细胞生长C. 细胞分化D. 细胞衰老9. 下列哪种细胞器具有双层膜结构？（）A. 线粒体B. 内质网C. 高尔基体D. 叶绿体10. 下列哪个过程能体现细胞的生物活性？（）A. 细胞分裂B. 细胞生长C. 细胞分化D. 细胞死亡二、判断题：1. 动物细胞和植物细胞都具有细胞膜、细胞质和细胞核。

（）2. 细胞分化是细胞形态、结构和功能发生变化的过程。

（）3. 细胞分裂时，染色体会复制并平均分配到两个子细胞中。

（）4. 生物体都是由一个细胞发育而来的。

（）5. 细胞壁对植物细胞具有支持和保护作用。

（）6. 细胞膜是细胞内部结构的边界，具有保护作用。

（）7. 细胞质是细胞内的液体，含有多种生物分子。

（）8. 所有细胞都具有叶绿体。

（）9. 细胞分化是生物体生长发育的基础。

（）10. 细胞衰老是生物体生长发育的必然过程。

（）三、填空题：1. 细胞中的能量转换器有线粒体和__________。

2. 细胞膜具有__________、__________和__________的功能。

2024人教版九年级英语第七单元精选练习题一、单项选择1．(2024四川达州)5. —Bob, your room is so dirty. It must ________ every day.—OK. Mom, I’ll do it right now.A. cleanB. be cleanedC. is cleaned2．(2018兰州) Only yesterday _________find out that his purse was lost.A. he wasB. was heC. did heD. he did3．（2018新疆乌鲁木齐）My bike is broken. I will have it_______ tomorrow morning.A. fix upB. fixed upC. repairingD. to repair4．(2024甘肃白银)24. —Teenagers should be allowed to make their own decisions.—________ They are not old enough.A. I don’t think so.B. I’m afraid so.C. I couldn’t agree more.D. I hope so.5．（2022四川达州）12．—Gu Ailing ________ her dream and won two gold medals in Beijing 2022 Winter Olympics.—___________excellent girl!A．achieved; How B．came true; How C．achieved; What an D．came true; What an6．(2024黑龙江绥化)6. I could ________ understand what he was saying because it’s ________ to follow a quick speaker.A. hard; hardlyB. hard; hardC. hardly; hard7．(2023辽宁朝阳)6. —I don’t know how to ________ the old books.—Why don’t you give them away to the kids in poor areas?A. deal withB. put onC. hand outD. take up8．（2020云南昆明）12．A lot of teenagers think as they are older and wiser, they ________ to make their owndecisions.A．should allow B．shouldn’t allowC．should be allowed D．shouldn’t be allowed9．（2014山东烟台）You look quite tired. You'd better ________ a good rest.A．stop to have B．stop having C．to stop to have D．to stop having10．（2019湖北咸宁）— Come and see! The baby is crying.—Please do something to make him .A．stop crying B．stop to cry C．crying D．cry11．I think students should ________ to do homework with others’ help.A．allowed B．be allowed C．allow D．be allowing12．（2019四川达州）﹣Where will the 2022 Winter Olympics____，Cindy？﹣In Beijing，the capital of China，the first city to host both Summer and Winter Olympics．A．be taken place B．take placeC．take part D．be taken part13．（2021内蒙古呼和浩特）11．After you take the medicine, you will be ________ to go to work. A．enough well B．enough actively C．actively enough D．well enough14．Our country is developing better and better, and Chinese is _________ spoken in many countries. A．widely B．badly C．hardly D．heavily15．（2019山东青岛）As middle school students, we follow the public rules wherever we go. A．would B．should C．might D．could16．（2020山东滨州）—I like the number “9” best, because I think it stands for “long lasting”. — Me too. So I choose ________ floor to live on.A．nine B．ninth C．the nine D．the ninth17．（2017山东临沂）— Could you please take out the rubbish?— ______. But I want to drink a cup of water first.A．Thank you B．Sure, no problem C．You’re welcome D．No, I can’t18．（2020湖北武汉）— Do you think teenagers can’t have a part-time job?—______________. They may learn from working.A．It’s nothing B．Don’t mention it C．Hard to say D．That’s all right19．（2020湖北黄冈）—Is this blue schoolbag Lucy's?—No. It be hers. Her schoolbag is pink.A．must B．mustn't C．can't D．may20．（2021湖北黄石）—How long may I ________ your magazine?—For one week. But it mustn’t ________ to others.A．borrow; lend B．keep; be lent C．lend; be borrowed D．have; lend二、根据句意及汉语提示完成单词1．(2024山东济宁)22. It’s necessary for you to learn to make your own ________ (选择).2．(2023黑龙江牡丹江)67. （安全）is the most important for all of us.3．(2022江苏盐城)59．Fishing in Snow, written by Liu Zongyuan, is one of my favourite ________（诗歌）. 4．(2016广西贺州)4.---Do you know my new friend Dale?---I think I know him. He often _________ (抽烟)heavily.5．(2022山东日照)37．If you don’t do it now, you’ll only __________ (后悔) it.6．Children’s action can be often ________ (影响) by adults’ behaviour(行为).7．You should always knock at the door before you ________（进去）a room.8．It's not common for teenagers to move out in most Asian __________(社会).9．(2020海南)60．Many doctors volunteered to________（支持）Wuhan as soon as they got the news. 10．He is famous in the local ________ (社区).11．The policeman asked the driver to show his driver’s ________ (证件).12．(2023新疆)53. The first “forest library” provides readers with a _______(机会) to read in a natural environment.13．It is an _________（糟糕的）movie and I don't want to watch it again！14．（2020四川宜宾）I'd like to express my __________(感谢)for your help.15．My parents often talk about what will happen if I don’t _________（成功）.三、用括号内所给单词的适当形式填空1．(2024甘肃武威（天水）)65. No matter how many difficulties we have, I believe all problems can be ________ (solve) in the end.2．(2019山东临沂)43. Our team lost the game because we played very ____________ (bad).3．These questions must ________ (answer) in English.4．We have nothing against _________ (play) football after class.5．My parents hope to see me _________ (achieve) my dreams.6．(2019黑龙江龙东地区)42. For safety, drivers must avoid ________ (smoke) while driving.7．（2021·江苏无锡）Come on! Go ahead, or you ________ (regret) it for the rest of your life.8．（2020·湖北鄂州）The storybook can _______ (not take) out of the reading room.9．（2022江苏无锡）For your own ________ (safe), you shouldn’t climb mountains alone.10．Do you ever worry about ________ (fail) a test?11．(2020江苏淮安)54．We have no _______ (choose) but to wait outside.12．Some flowers _________ (water) by Li Ming already.13．(2020江苏宿迁)54．Gulliver saw many________ （very small）people in front of him. 14．（2020·甘肃金昌）I believe you will_________(success)in passing the English exam.15．（2020·江苏盐城）When making a fruit salad, you'd better ______ fresh fruit.（choose）四、根据句意及首字母提示完成单词1．(2024江苏苏州)38. As the host city, Suzhou will m______ to make the 2026 ISF Football World Cup a greatsuccess.2．I’m very glad to have a c________ to study in Peking University.3．If you don’t do it now, you’ll r________ it.4．(2021江苏宿迁)58．The task is too difficult. Lucy has no c________ but to ask others for help.5．I was so e________ about my holiday that I couldn’t stop talking about it.6．The leader has promised to s________ our plan, so we can’t change it now.7．Parents should encourage teenagers to do social work for their c________.8．(2022四川自贡)53．We must pay much attention to our s________, so don’t go swimming alone in the river. 9．（2022四川德阳）—Can I go shopping with John, mom? He just got his driver’s license.—No way! I don’t think sixteen-year-olds should be a________ to drive.10．You should get a driving l_____ before you drive a car.五、完成句子1．（2022辽宁鞍山）父母不应该对他们的孩子太苛刻。

第七单元能源的合理利用与开发单元练习注意事项：1.本卷共17小题，满分40分。

考试时间45分钟。

2.可能用到的相对原子质量：H —1C —12 O —16 Fe —56一、选择题(本大题包括12小题，每小题1分，共12分。

每小题的4个选项中只有1个符合题意。

)1.不属于新能源开发和利用的是 ( )2.俗话说“人要实心，火要空心”。

下列对“火要空心”的目的理解正确的是 ( )A.增大可燃物与氧气的接触面积B.隔绝空气C.降低可燃物的着火点D.移除木柴使火熄灭3.懂得一些燃烧与爆炸的基本常识，可以使我们避免意外事故的发生。

下列图标与燃烧和爆炸无关的是( )4.下列变化不是化学变化的是 ( )A.沼气池中产生甲烷B.煤和石油的形成C.石油分馏得到汽油D.煤干馏得到焦炭5.化学反应在生成新物质的同时，还伴随着能量的变化。

下列反应发生时吸收热量的是( )A.C +O 2CO 2 B.Mg +2HCl =MgCl₂+H₂↑ C.CaO +H₂O =Ca (OH )₂ D.CO 2+C2CO 6.用防火、灭火、自救等安全知识判断，下列做法正确的是 ( )A.发生火灾逃生时，用湿毛巾捂住口鼻B.炒菜时油锅着火，立即浇水灭火C.在加油站可以接打电话D.开灯检查燃气是否泄漏7.认识燃烧原理可以利用和控制燃烧。

下列说法不正确的是 ( )A.空气中混有可燃性气体，在有限空间里遇明火可能发生爆炸B.用煤炭烧锅炉时不断鼓入空气，可使煤炭燃烧更剧烈、更充分C.实验桌上少量酒精着火时可用湿布盖灭，是因为降低了酒精的着火点D.森林起火时，可在大火蔓延线路前砍掉一片树木，建立隔离带灭火8.下列有关能源的叙述正确的是 ( )A.石油是一种可再生资源B.大量使用化石燃料会造成大气污染，因此应该停止化石能源的开发和利用C.人类需要的能量都是由化学反应产生的D.目前没有大量使用氢能源，是由于氢气的制取成本高，贮存困难9.已知镁条在二氧化碳或氮气中都可以燃烧。

2024年人教版九年级上册化学第七单元课后练习题（含答案和概念）试题部分一、选择题：1. 下列物质中，属于纯净物的是（）A. 自来水B. 空气C. 氧气D. 酒精溶液2. 下列气体中，具有可燃性的是（）A. 氧气B. 氮气C. 氢气D. 二氧化碳3. 下列关于分子的说法，错误的是（）A. 分子是由原子组成的B. 分子在不断运动C. 分子之间有间隔D. 分子的质量和体积都很小4. 下列关于原子的说法，正确的是（）A. 原子是化学变化中的最小粒子B. 原子是由分子组成的C. 原子之间没有间隔D. 原子是不可再分的5. 下列元素中，属于金属元素的是（）A. 氢B. 氧C. 碳D. 铁锌6. 下列关于化学式的说法，错误的是（）A. 化学式可以表示一种物质B. 化学式可以表示该物质的元素组成C. 化学式可以表示该物质的一个分子D. 化学式可以表示该物质的分子构成7. 下列关于化合价的说法，正确的是（）A. 单质中元素的化合价为0B. 在化合物中，正负化合价的代数和为0C. 氢元素在化合物中的化合价为+1D. 氧元素在化合物中的化合价为28. 下列关于化学方程式的说法，错误的是（）A. 化学方程式可以表示反应物和物B. 化学方程式可以表示反应条件C. 化学方程式中的系数表示分子个数D. 化学方程式必须配平9. 下列关于质量守恒定律的说法，正确的是（）A. 参加反应的物质质量之和等于物的质量B. 反应前后原子的种类和数目不变C. 反应前后分子的种类和数目不变D. 反应前后物质的状态不变10. 下列关于化学实验基本操作的说法，错误的是（）A. 取用固体药品时，应将瓶塞倒放B. 取用液体药品时，瓶塞要紧挨试管口倾倒C. 使用胶头滴管滴加液体时，滴管不能伸入容器内D. 稀释浓硫酸时，应将浓硫酸缓慢倒入水中二、判断题：1. 分子和原子都是构成物质的粒子。

（）2. 化合物中元素的化合价可以是分数。

（）3. 化学方程式中的反应物和物之间用“+”连接。