Unit 4 Don27t eat in class.语法、练习题及答案.doc

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1、如有侵权，请联系网站删除，仅供学习与交流Unit 4 Don27t eat in class.语法、练习题及答案【精品文档】第 10 页Unit 4 Dont eat in class.一、祈使句祈使句指的是表示命令、请求、建议或劝告的句子。其主语you常省略，谓语动词用原形，句末用感叹号或句号，读降调。1. 肯定的祈使句（1）动词原形+其他 Stand up, please. = Please stand up. 请起立。（2）Be + n./adj. Be a good boy! 要做一个好孩子! Be careful! = Look out! = Take care! 小心 / 当心！（

2、3）Let + 宾语 + 动词原形 + 其它成分 Let me help you. 让我来帮你。 Lets go to school together. 咱们一起上学去吧。2. 否定的祈使句（1）Dont + 动词原形 Dont stand up. 别站起来。 Dont be careless. 别粗心。 Dont let them play with fire. 别让他们玩火。（2）Let型的否定式有两种:“Dont + let + 宾语 + 动词原形 + 其它成分”和“Let + 宾语+ not + 动词原形 + 其它成分”。 Dont let him go. / Let him not

3、go. 别让他走。 Let them not play with fire. 别让他们玩火。（3）no开头,用来表示禁止性的祈使句。 No smoking! 禁止吸烟!No fishing! 禁止钓鱼!3. 祈使句的强调形式，通常在肯定祈使句式前加上助动词Do。 例如：Do shut up! 快住口！ 4. 祈使句的回答 祈使句的动作通常是表示将来发生的动作，所以回答祈使句时，一般用will或wont。在回答具有否定意义的祈使句时，要注意两点： （1）形式一致(即Yes与will保持一致；No与wont保持一致) （2）意思相反(即Yes是 “不”的意思；No是 “是”的意思)。 在回答时，要

4、注意分析上下文语境中所提供的条件。如：- Dont go out, please. Its raining heavily outside. 请不要出去。外面雨下得很大。 - Yes, I will. I have to meet my brother at the airport. 不行，我得去机场接我弟弟。5. 祈使句的反意疑问句（1）肯定祈使句的反意疑问句反问部分用will you 或wont you。 Please open the door, will/ wont you? 请把门打开，好吗？（2）否定祈使句的反意疑问句反问部分只用will you。 Dont be late aga

5、in, will you? 别再迟到了，行不行？（3）以lets开头的祈使句反意疑问句反问部分用shall we。 Lets turn on the TV, shall we? 我们把电视打开，好吗？ 只有以lets开头的祈使句的反意疑问句的反问部分才用shall we，而let us 开头的祈使句的反意疑问句的反问部分应为will you或wont you.如：Let us stay here, will/ wont you? 请（你）让我们留在这好吗？二、辨析have to与mustmust 作为情态动词, 则表示“必须” “务必”,它侧重于主观上的必要性。否定形式为mustnt, 意为“

6、不准，不许”。如： You must come tomorrow. 你明天必须来。1. 表必须，应该，务必mustnot(mustnt)表禁止，不许，不准，不可以。Everyonemustattendthelecture.Theworkmustbefinishedassoonaspossible.Youmustntlendittoothers.注：对must问句的回答。-MustIgotherenow?-Yes,youmust./ No,youneednt.neednotdonthave(got)todontneedto.2. must表推测一定，必定，一般只用于肯定句，亦即用于疑问句和否定不

7、表揣测。（1） 对现在。Hemustbeathomenow.Youmustbehungryafterthelongwalk. TheChineselanguagemusthavethelargestnumberofspeakers.（2） 对进行时。Hemustbesleepingnow(atthattime).3. must表不可避免的倾向。Allmenmustdie.4.must表偏偏，不巧 Mycarmustbreakdown. 我的车偏偏坏了。haveto作为情态动词，意思是必须、不得不，它侧重于客观上的必要和外界的权威。1. 结构：主语haveto动词原形（主语是第三人称单数时，用h

8、asto）1) Youhave to wear （wear）sports shoesforgymclass.2) Tony has to （have to）play the guitareveryafternoon.2. 否定形式：主语dont/doesnthaveto do sth. 常翻译成“没必要做某事，不必.”。 如：Nickdoesnt have to wearauniform.尼克不必穿制服。3. 一般疑问句：Do（Does）主语haveto动词原形其他Do youhave to stayathomeonweekends?周末你必须呆在家里吗？have to 与must的区别(1)

9、 must表说话人的主观看法，而haveto表客观需要。比较：Ihavetostopsmoking. （外界压力，客观情况使然） Imuststopsmoking. （主观认为）(2) must只有一种形式而haveto有更多的形式have to, has to, had to, will have to等。IthoughtImustgothere.(3) haveto的疑问，否定均须借助于do。Doeshehavetogotherenow?不说Hashetogotherenow?Hehastogotherenow,doesnthe?Theworkhastobefinishedbefore10

10、oclock.例题：（ ）1.Please_mesomemoney.A.lendB.lendingC.tolendD.belend解析：Please 为副词位置灵活，我们可以把它抹掉，动词原形打头为祈使句，选A答案： A（ ）2._lookoutside.Lookattheblackboard.A.notB.dontC.arentD.cant解析：祈使句否定No+Ving 或者Dont + V原形。因为此句为动词原形所以选B答案： B（ ）3. You dont _ wash all the dishes after meals.A. have to B. must C. may D. has

11、 to解析：根据句子意思可推出汉语意思你不必在晚饭后洗盘子。主语为在AD里面选，主语为第三人称，所以用原型选A答案： A （ ）4.Lingling can I use your e-dictionary? - Sure. But you _ return it after class.A. may B. would C. can D. must解析：根据题意你必须返还电子字典。必须must答案： D（ ）5.We often see the sign” on the bus.A. No fishing B. No smoking C. No parking D. No swimming解析：

12、四个选项都符合语法，但是公交车上只能是禁止吸烟。答案： B单元基础练习一、选择填空（30分）（ ）1.Wecaneatinthecafeteria.Butwe_eatintheclassroom.A.dontB.didntC.cantD.arent（ ）2.WhenJimgoes_theclassroomtheteacherishavingclass.A.toB.inC.outD.into（ ）3.-_Itakesomephotosinthehall?No,you_.A.Can,needntB.Must,mustntC.Could,wontD.May,mustnt（ ）4.Dontforget

13、_methisevening.A.tocallB.callC.callsD.calling（ ）5.Donttalk_inthelibrary.A.loudB.loudlyC.lowD.lowly（ ）6.Ihave_rulesinmyhome.Wehave_homeworktodotoday.A.toomany,toomuchB.toomuch,manytooC.toomany,muchtooD.muchtoo,manytoo（ ）7.-Canyourbrotherswim?-_.A.Yes,hecantB.Yes,please.C.No,hecantD.Yes,hedoes（ ）8.Its

14、rainingallday,soI_stayathome.A.mustB.havetoC.musttoD.can（ ）9.Hesnever_class.A.arriveB.lateforC.arrivelateD.late（ ）10.Dontworry!Thereis_muchwrongwithyou.A.somethingB.anythingC.everythingD.nothing（ ）11.Dontarrivelateforclass,_?A.doyouB.arentyouC.willyouD.dontyou（ ）12.“No,_!”saysthesign.A.smokeB.smokin

15、gC.smokesD.tosmoke（ ）13.Hismotherisill_fortwodays.A.inbedB.onbedC.inthebedD.onthebed（ ）14.-Canyoucookfish?-_.Itseasy.A.No,IcantB.Yes,IcanC.Sorry,IcantD.Yes,Ineed（ ）15.-WhatdidMaryhave_breakfastthismorning?-Shegotuplateandhurriedtoschool_breakfast.A.for,withoutB.at,withoutC.for,afterD.at,after二、阅读理解一

16、Hello, listeners. Welcome to Henton Hospital Radio. Before our music program begins, Im going to repeat (重复) some of our hospital rules. The hospital can sleep 800 patients (病人). There are 8 beds in each ward (病房). The visiting hours are in the afternoon from 2:30 to 3:30 and in the evening from 7:0

17、0 to 8:00. But remember only two people can see you at the same time. Sorry about that, but you can see what would happen if we didnt have these rules. The other rules are about our hours. We start quite early-you might not be used to that. We wake you at 6:00, and breakfast is at 8:00, lunch at noo

18、n. Theres tea at 3:30 and supper is at 6:00. You can see the smoking sign-we dont allow smoking in the wards. Im sure you understand why. However, if you do need to smoke, there are some smoking-rooms where it is allowed. You will find the radio switch (开关) on the wall near your bed, with your own h

19、eadphone, if you want to listen. Its our own hospital radio wishing you a quick recovery(康复).1. Who do you think the listeners might be?A. Patients.B. Visitors.C. Doctors.D. Nurses.2. How many wards are there in this hospital?A. 8.B. 80.C. 100.D. 800.3. Which is NOT allowed in the hospital?A. Listen

20、ing to the hospital radio.B. Visiting patients in the morning.C. Smoking in the smoking-rooms. D. Getting up early in the morning.4. What program will follow this radio talk?A. Hospital rules. B. A weather report. C. A free talk. D. A music program5. What sign can you see in the wards?A. No speaking

21、. B. No parking. C. No smoking.D. No people.二Many students in the USA always take the school bus to school every day. Parents think taking the school bus is very safe(安全的). But sometimes it is also dangerous. Some students died(死亡) because they broke the school bus rules. Here are some school bus ru

22、les: Amve at the bus station early. Wait for the bus at the bus station. Dont play around the bus. Dont run everywhere at the bus station. Dont walk or fight in the bus when it is going. Dont try to leave the bus until it stops. These rules are good for students. Remember them and dont break them. S

23、o you can keep yourself safe.根据短文内容,判断下列句子正( T)误( F) 。 ( ) 1. Taking the school bus to school is always safe. ( ) 2. Students can run everywhere at the bus station. ( ) 3. Students have to sit on their seats when the bus is going. ( ) 4. Students cant get to the bus station late. ( ) 5. It can be da

24、ngerous if students break the school bus rules.三、首字母填空Dear friends, Do you k 1 you are lucky when you are sitting in the bright c 2 and having your classes or enjoying your nice food at home? Can you feel many children in Haiti(海地) are very lucky, t 3 ? We know an earthquake(地震) happened in Haiti on

25、 January 12th，2010. Many people died(死去). Lots of children dont have enough f 4 to eat, and they c 5 go to school now. They need our h 6 . So wed like to collect stationery and clothes for them. You can d your old pens, rubbers, rulers, pencil-boxes o7 old clothes. And youcanalsodonate(捐赠)somemoney.

26、Wewills8themtothechildreninHaiti.Wehopetoraisem9than10,000yuan,thenwecanhelp50studentstogobacktoschool.Ifyouwouldliketodonatethings,pleasec10uson83301666.Thankyou. GaoShanandherclassmates1._2._3._4._5._6._7._8._9._10._参考答案一、CDDAB ACBAD CBABA二、1-5 A C B D C 1-5 FFTTT三、1. know 2.classroom3.too4.food5.cant6.help7.or8.send9.more10.call.