新版深圳广州沈阳版牛津英语七年级下Unit6Electricity知识点语法及练习

1、新版深圳广州沈阳版牛津英语七年级下 Unit 6 Electricity. 短语（词组）1. moment 可数名词, 意为”瞬间;片刻”如：I d like to talk to you for a moment.与 moment 相关的短语：a moment ago刚刚;刚才 如：He was here a moment ago.at the moment现在;此刻 如：He is at home at the moment.wait a moment 等一会儿 如：Wait a moment, please.later 副词,意为”后来;以后”2. at the moment 此时此刻；

2、 for the moment暂时； in a moment过一会儿；at any moment任何时刻3. a packet of 一袋不可数名词没有复数形式， 在表示数量时，常用 “ a单+位量词+of+不可数名词”结构。如：a piece of meat; a piece of paper;a glass of apple juice; a bag of milk数词+单位量词+of+不可数名词可数名词复数如：two glasses of water; three cups of tea;two packets of sweets ; three bags of pencils4. in

3、 a way 在某种程度上on the way 在路上； in the way挡道；in this way这边走； by the way顺便问下5. connect连接 常用结构 : be connected to sth.连接到 connect sth. to/with 把 和连接起来 .如：Turn on your computer and connect it to the Internet.The railway line connects Wuhan to Shanghai.6. power station发电站7. washing machine 洗衣机8. switch off=

4、turn off 关掉9. tidy up 收拾 整理=put away10. air condition 空调11. come into进入 之内12. provide sb. with sth. 供应给某人某物如：The sun provides us with light and heat.“为某人提供某物 ”还可以用 provide sth. for sb.13. “as many +复数名词+as ” 意为”和 一样多的 ”如：I have as many books as you. 我和你有一样多的书.“as much不+可数名词+as” 意为”和 一样多的 ”如：My broth

5、er drinks as much milk as I every day.14. share sth. with sb. 与某人合用 /分享某物15. (1 ) “keep + sb. / sth.形+容词” 意为“让某人/某物保持某种状态”。(2) keep doing sth.连续不断地做某事，一直做。强调不断重复的动作。如：Li Lei keeps buying books about cars.李雷不断地买有关车的书。(3) keep sb./ sth. doing sth.让某人不断地做某事(4) keep sb. from doing sth. 阻止某人做某事如：We must

6、keep them from getting to know our plans.我们必须防止他们知道我们的计划。16. at least 至少17. make sure 务必，确信. 语法：情态动词一、情态动词的定义情态动词是一类用于表示说话人的语气和情态的助动词。 常表示命令、 请求、拒绝、义务、可能、需要等。二、情态动词的特点1. 情态动词无人称和数的变化 ,2. 情态动词后面跟的动词需用原形 ,否定式构成是在情态动词后面加 not。3. 个别情态动词有过去式 , 过去式用来表达更客气 , 委婉的语气 , 时态性不强, 可用于过去，现在。三、情态动词的用法1. can/could； ca

7、nt/couldnt (否定)1) 表示能力, 意为“能、会 ”, 例如：如：I can speak a little English. - Can you ride a bike?I cant swim. - Yes, I can. / No, I cant. 2) 表示请求或允许，多用于口语中，意为 “可以、能 ”等如：You can go home now.现在你可以回家了 - Can I borrow your bike?You cant stop your car here. - Yes, you can. / No, you cant.3) 用于否定句、疑问句中，表示猜测、怀疑或不

8、肯定 .如：Lucy cant be at home now, she went to the park just now.Where can it be? I cant find my football.【注意：】1） could 是 can的过去式, 有两种用法 , 一种表示过去式； 一种用来表达更加客气, 委婉的语气 , 时态性不强 , 可用于过去，现在。2） be able to 意为“有能力，能够做 .”, 相当于 can/could, 但它有人称，数和时态的变化。2. may; may not (否定)1) 表示 “请求，许可 ”，此时与 can 同义，可以互换使用如：May I

9、borrow your bike? Can I borrow your bike?Yes, you may. / No, you may not. Yes, you can. / No, you cant.2) may/might 表示不太肯定的猜测，意为“有可能”如：Lucy may come to school late today.It might rain today.【注意】：might 是 may 的过去式, 有两种用法 , 一种表示过去式，一种表示更加委婉, 客气的语气或对可能性的怀疑。3. must; mustnt (否定)1) must(“必须 ”, 表示命令 )，mustn

10、t(“一定不能 ”, 表示强烈禁止 .)如：You must go to bed before 22:00pm.You mustnt play with fire. It s dangerous!-Must I write down the sentences？-No，you neednt. (-No,you dont have to)注意：在回答 must的疑问句中，否定回答用 neednt 或 dont have to表示“不必”，不用 mustnt2) must 还可以表示非常肯定的猜测，意为“一定”如：The girl in a red skirt must be Lucy.3) mu

11、st/ have to 的区别：. must表示必须，强调主观上的愿望； have to表示“不得不”，强调客观需要如：You must go be bed before 22:00pm. My bike is broken, so Ihave to go to school on foot. have to 有人称、数、时态的变化； must 则没有。如：I have to clean the classroom today. She has to finish herhomework first.It was late, he had to go to school without bre

12、akfast.一，选择填空：( )1. Mum makes me eat an apple every day _ the doctor away.A.keeps B. is kept C. to keep D. kept( )2. I m getting tftaer and fatter now. What should I do, doctor?-Youd better eat food and take exercise.A.less;less B.more;more C.more;less D.less;more ( )3. -What can I do for you? -I d

13、like two _.A.packet of tea B. packets of apple C. packets of teaD. packet of apples( )4. Water comes to our flats _ pipes under the streets.A. across B. along C. through D. over( )5. Andy Wang looks _ today. He is laughing all the way. A. happy B. happily C. sad D. sadly( )6. The computer is connect

14、ed _ a machine.A.at B. to C. on D. in( )7. Our head teacher is kind to us and she is like our mother, _.A.on the way B. by the way C. in a way D. in the way( )8. _ you show me the way to the nearest underground station ?A. may B. must C. can D should( )9. Electricity _ our life easier, We must save

15、it.A. make B. makes C. is making D. made( )10. Jason put some rice in the pot and _ the rice cooker .A. opened B. switched on C. closed D. turned off( )11. I washed a lot of clothes. Who can _?A.tidy up them B. tidy them up C. tidy it up D. tidy up it( )12. I asked him twice. But he didn t _ my ques

16、tions.A.answers B. answer to C. reply D. reply to( )13. There are _ syllables in the word“chemical”.A. two B. three C. four D. eight( )14. Jon:May I have a packet of sweets ?Shop assistant : _A. No, it is not yours B. OK, here you are C. That s a good idea D. Why not ?( )15. Earth Hour started in 20

17、07 in _ .A. the USA B. China C. the UK D. Australia二，用同义词（组）替代句中的划线部分。1“ I dont think it is a good way to work out the problem.” replied Mr White.A. said B. answered C. asked D. thought2. Dont look so foolish. It is a very easy question.A. silly B. happy C. clever3 .- Can I ask you a question?- Wait

18、 for a moment, Im coming.A.a long time B. a short time C. at once4. The boy is like his father.A.likes B. sounds like C. looks like5. You neednt finish the work today.A.dont have to B.cant C. mustnt三，完形填空ElectricityElectricity is very dangerous. (1) , it is also very (2) in a way.We (3) see electric

19、ity, but we can (4) it into different (5) of energy,（6） movement energy, heat energy, sound energy,light energy and so(7) .Electricity is a very great (8) . It changes our lives. (9) it, our lives will bevery （10）.1. ( ) A.Or B.And C.But D.So2. ( ) A.hardly B.useful C.beautiful D.difficult3. ( ) A.c

20、an B.may C.may not D.cant4. ( ) A.put B.get C. turn D. make5. ( ) A.form B.from C.froms D.forms6. ( ) A.likes B.such as C.for example D.seem7. ( ) A.at B.in C.on D.into8. ( ) A.things B.invention C.job D.discoverment9. ( ) A.Own B.With C.No D.Without 10.( ) A.easy B.beautiful C.difficult D.simple四，阅

21、读理解A electric machineJanes mother was about seventy, so Jane and her husband wanted to give the oldlady a nice present for her birthday. She liked drinking tea, so Jane bought a smallelectric machine for her. It could make tea and then wake people up in the morning.She brought it to her mother on he

22、r birthday,and showed her how to use it.Before you go to bed,put tea and water in it”, she explained to her mother”, and dont forget to turn on the electricity.When you wake up in the morning, your tea will beready.”After a few days, the old lady telephoned her daughter and said,”Jane,there isone th

23、ing I dont understand. Why do I have to go to bed to make tea? C atnI have teain the afternoon or in the evening?”1.( )On the birthday,Janes morther got a machine to .A.make tea for her B.buy tea for her C.wake her up in the morningD.both A and C2.( ) how to use the machine.A.Jane told her husband B

24、.Jane told her mother C.Janes husband told her motherD.Janes mother knew3.( )The machine can be used .A.before going to bed B.only in the morning C.both in the afternoon and eveningD.at any time4.( )We need to use an electric machine.A.time B.a telephone C.electricity D.tea5.( )From the passage we k

25、now that .A.Jane is beautiful B.Jane his husband are silly.C.Jane is a good daughter D.Janes mother is hard-working五，情景对话（A） 从方框中的六个选项中选出五个合适的选项补全对话。Arecycle B. protect C. when D. if E. difficult F. easyA: Hi, Sue, would you like to help (1)_ the environment?B: Id love to, but I dont know what I can

26、 do.A: First, you can start by turning off the lights.B: Yes, thats (2)_. Whats the next?A: Second, you can ride a bike. Don t take a bus or a taxi (3) _ you don thave to.B: That will save money, too. What else?A: Third, try to (4)_ paper that is used by people around you.B: Mm, thats a good idea!A:

27、 And fourth, take your own bag (5)_ you go shopping. Don t use plasticbags.B: OK. My parents do most of the shopping, Ill tell them.(B)选择下列句子完成下面对话。A Im almost ready. B. I always forget many important things C. OK. I am ready.D. The concert is nothing to me. E. You have to go right now. F.What a bad

28、 memory I ve got!G. My glasses!A: Come on, Paul! Its nearly seven. We have only a few minutes left.B: (6)_A: We will be late if you dont hurry.B: Just one minute. I am packing my things.A: The gate guards wont let us in if we are late.B: (7)_A: Come on, then.B:Oh, I almost forget our tickets. (8)_A:

29、 Have you taken the car key?B:Oh, the keys. OK,let s go Oh, my God.(9)_- Icant see wellwithout my glasses.A: You will forget your head if you are not careful.B: Its my memory. Its so bad these days.(10)_A: Then youd better do something to improve it.六、用单词的适当形式填空：1 Yao Ming is very tall. He is at _ (

30、little) two metres tall.2 With this _ (electricity ) blanket, the grandpa wont feel cold in winter.3 Its _ of you to buy such a dress. It looks so ugly (fool )4 The remote control doesnt work now. I think we need to change the two _in it ( battery )5 Your room is dirty and _. I think you know what y

31、ou need to do now( tidy )6. A moment _(late), Daisy came back.7. Benny _(reply)“Can you get me a bag of sweet?s”8. Can Tom _(speak) English?9. Electricity is very helpful, but we must remember the _(safe) rules.10. We mustnt touch the TV set with our wet _(hand) because it is dangerous.语法，情态动词专练1. (

32、 ) -May I borrow your books? - -Yes, you _ .A. may B. can C. must D. need2. ( ) -Can he speak English?-_.A .Yes, he does B.Yes,he did C. Yes, he can D.Yes,he must3. ( ) -_ I swim here? - I msorry. Children _ swimalone here.A.Must; can t B. May; must C. Can; mustn t D. Can t;can4. ( ) With the help o

33、f the new technology, you _ e-mail your friends bymobile phone.A.can B. must C. need D. should5. ( ) -Can I go fishing with you, Dad?-No, you _. You _ stay at home and do your homework.A.wont; may B. cant; must C. shouldnt ; ought D.neednt; should6. ( ) Thomas, please be quiet. The others _ hear ver

34、y well.A. cant B. mustnt C.shouldnt D. neednt7. ( ) Its very warm today. You _ wear the coat.A. must B. dont have to C. have to D. mustnt8. ( ) Look at that man over there. he be our teacher Mr.Luo?-He be him. He has gone to Beijing.A.May;must B.Can;may C.Can;can t D.May;can t9.( ) You _ talk loudly in the library.A. dont B. mustnt C. neednt D. dont have to10.( )