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1、 北师大版初三英语第 6 讲：unit 3 语法篇教师版 第 2 页 Unit 3 语法篇 _ _ 理解并掌握常见连词及表示原因连词的用法 1.常见连词(and,but,or,so)的用法 (1)and“和，而且，又，表示并列关系。例如：I woke up and got out of bed.我醒了就起床了。(2)but“但是表示转折关系。例如：I got up early but I still missed the first bus.我起得很早，但仍然错过了早班车。(3)or“或者；否那么。例如：Hurry up,or you will be late.快点儿，否那么你就要迟到了。(4
2、)so“所以，表示因果关系。例如：I heard some noise outside,so I went out of 第 3 页 the room to see why.我听见外面有些声音，所以走出房间去看看是怎么回事。2.because,since,as,for 表示原因的区别 because,since,as 都是表示“原因的附属连词，引导原因状语从句；而“for也表示原因，引导的是并列句。语气由强至弱一次为：because,since,as,for。(1)because 表示直接原因，它所指的原因一般是听话人所不知道的，语气最强。常用来答复 why的提问，一般放在主句之后，也可以单独
3、存在。例如：-Why are you late?你为什么迟到了？-Because I missed the early bus.因为我错过了早班车。(2)since 侧重主句，从句表示显然的或者已为人所知的理由，常译为“因为，既然，语气比because稍弱，通常置于句首，表示含有一种勉强语气的原因。例如：第 4 页 第 5 页 如果明天不下雨，我们就会去公园。(2)although 虽然，尽管，引导让步状语从句。不与 but 连用。例如：Although no man agreed with him,he held on his views.尽管没人赞同他的观点，他还是坚持自己的看法。1.To
4、m was late for school _ its raining hard.A.because of B.because C.due to D.so 2.Read this article,_ you will understand that not everything can be bought with money.A.or B.so C.but D.and 3.Youd better wake up Tom at 6:30,_ he will be late for the match.A.but B.and C.or D.so 第 6 页 4.To make our dream
5、s come true,we should have aims_ then try out best to achieve it.A.and B.but C.so D.or 5.I didnt go surfing,_ it was too cold.A.though B.so that C.because D.since 6.Rick has learned a lot about Chinese culture _ he came to China.A.before B.when C.since D.until 7.It is dark,_ lets go home.A.so B.and
6、C.but D.and 8._ Im a little disappointed,I can still accept the result.A.Since B.Because C.Although D.For 9.We will stay at home,_ there is a traffic 第 7 页 jam tomorrow.A.if B.unless C.but D.because 10.-Hello,Joyce,you are busy.Can I give you a hand?-Thanks very much,_ I can manage.A.and B.but C.or
7、D.so 解析：1.主句句意为“Tom 上学迟到了，从句句意为“雨下得很大，可知主句为结果，从句为原因。because of 和 due to 后面都跟短语，because 后面跟句子；应选 B。2.题意为“读一下这篇文章，你就会知道不是所有的东西都能用钱买到的，表示并列关系，应选 D。3.主句句意为“你最好在 6:30 叫醒 Tom，从句句意为“他将比赛迟到，连词应用 or 表示否那么，不然，应选 C。4.题意为“为了实现我们的梦想，我们应该有目标，然后尽最大努力去实现它，and then 表示然后，应 第 8 页 选 A。5.主句句意为“我没有去冲浪，从句句意为“天太冷了，从句表示原因，并
8、且是听话人不知道的原因，语气较强，用 because，应选 C。6.此题为现在完成时，现在完成时的时间状语标志“since+时间点，since 表示自从以来，题意为“自从 Rick 来到中国，他已经学了很多中国文化了。before“之前 when“当时候 until“直到，应选 C。7.主句句意为“天黑了，从句句意为“我们回家吧，主从句是因果关系，so 表示结果，应选 A。8.从句句意为“我有一点失望，主句句意为“我仍然能接受这个结果。根据选项，although 尽管，引导让步状语从句，题意为“尽管我有点失望，仍然能接受这个结果，应选 C。9.主句句意为“我们将会待在家里，从句为“明天堵车。从
9、句表示条件，题意为“如果明天堵车，我们将会待在家里。if，如果，引导条件状语从句，应选 A。10.上文意思为“Joyce,你很忙，我能帮个忙吗？，下文答复为“非常感谢，_ 我能应付过来。根 第 9 页 据题意可知表转折，用 but，应选 B。答案：1-5 BDCAC 6-10 CACAB 根底演练 根据句意及首字母或汉语提示或用所给词的恰当形式填空。1.Im afraid we have to c _(取消)the meeting.2.A number of useful_(invent),such as smartphones,have changed our lives.3.Tom has
10、 gone to Italy,he is a_ from the meeting.4.Inner Mongolia lies in the n_ part of China.5.Qian Xuesen is one of the greatest_(开拓者)of Chinas space technology.6.I d_ with Lucy;we have different opinions on the problem.7.Now more and more teenagers p_ the old 第 10 页 with seats on the bus.8.It was in gre
11、at d_ to keep the babies in the car alone.9.I wonder who is the o_ of the car.10.There are many new ways of producing _(能量),such as,wind and solar power.稳固提高 一、根据中文提示完成句子每空一词 1.孩子们得益于每天的眼保健操。The children _ _ daily eye exercises.2.我们应该减少街上汽车的数量。We should_ _ _ _ _the cars in the street.3.詹妮一点儿也不喜欢科技。J
12、enny_ _technology _ _.4.一些创造帮我们活得更好，寿命更长。第 11 页 Some inventions_ _ _ _ _ _.5.北京以悠久的历史和名胜而闻名。Beijing _ _ _ its _ _ and places of interest.6.众所周知中国有四大创造。_ _ _ _,there are four great inventions in China.7.由于污染变得越来越严重，中国政府下定决心解决这个问题。Since pollution is getting more and more serious,Chinese government _ _
13、 _ _ _ _ _the problem.8.你每天花多长时间听英语？_ _ _ _ _ _ _ English every day?二、按要求完成以下句子 1.How about telling stories to cheer up the sick kids?(改为同义句)第 12 页 _ 2.They have seen the film already.(改为否认句)_ 3.Its about 2 kilometers from my home to school.(对画线局部提问)_ 4.My cousin bought a new bike last week.(改为同义句)_
14、 5.只要你努力工作，你的梦想就会实现。(翻译)_ 第 13 页 _ 答案 根据句意及首字母或汉语提示或用所给词的恰当形式填空。1.cancel 2.inventions 3.absent 4.northern 5.pioneers 6.disagree 7.provide 8.danger 9.owner 10.energy 稳固提高 一、根据中文提示完成句子每空一词 1.benefit from 2.cut down the number of 3.doesnt like;at all 4.help us live better and longer 5.is famous for;lon
15、g history 6.As we all know 7.makes up its mind to work out 8.How long do you spend listening to 第 14 页 二、按要求完成以下句子 1.Why not tell stories to cheer up the children?2.They havent seen the film yet.3.How far is it from your home to school?4.My cousin has had a new bike since last week.5.Your dream will
16、 come true as long as you work hard.一、单项选择 1.-Is this your fathers car?-No._ car is black.A.My B.His C.Her D.Your 2.You can take _of the two toys cars and leave the other one for your brother.A.both B.none C.either D.neither 3.Is there _ useful on science?Im looking for information abut this topic.第
17、 15 页 A.everything B.something C.anything D.nothing 4.-Did you catch the first subway this morning?-No,I didnt.It had started moving_ I could get on it.A.before B.since C.after D.as soon as 5.-Did you have a good time at the party?-Yes.We sang _ danced until late at night.A.but B.if C.or D.and 6.Lin
18、 Shuhao is_ famous _ all the basketball fans in China know him.A.too;to B.so;that C.enough;to D.as;as 7.Practice more,_ youll do better in playing chess.第 16 页 A.but B.and C.when D.after 8.There will be _ cars in the city because people will prefer the subway.A.fewer B.more C.less D.most 9.Of all he
19、 drinks,tea is _ in the world.It has over 5,000 years of history in China.A.older B.oldest C.old D.the oldest 10.Doing eye exercises _ one of the useful ways to protect our eyes.A.is B.are C.was D.were 二、完形填空 The first time I saw Suzy Khan,I knew I had to help her.She was really small for her age of
20、 12.The boys in my class often laughed at her.She would open a 1 ,pretending to read,with tears dropping on the open page.第 17 页 All I knew was that she was an orphan(孤儿)from Africa.She had just been adopted(收养)by a family,and they thought that the best way for her to 2 American ways of life is to b
21、e with American kids.I looked 3 at this small girl and promised myself that I must help her.But how could I help her fit in with us?There had to be a way.One day,when I went into the classroom,I saw that Suzy had opened her geography book to a picture of a train,and in her notebook,she had made a pe
22、rfect 4 .I was surprised and thought that she could do 5 in the coming talent show.So,I took her to see the art teacher,Miss Parker,and showed her what Suzy had drawn.“Why,its 6 ,said Miss Parker,and then showed us a poster she had painted for the talent show.“I need more of these,but I just dont ha
23、ve enough time.Could you help me,Suzy?On the day of the talent show,Suzys 7 were everywhere-all over the hall and all over the 第 18 页 school,each one different.“And 8 ,said Mr.Brown,the schoolmaster,at the end of the show,“We have a special award.Im sure youve all noticed the wonderful posters.Every
24、one nodded.“One of our own students painted them.I could hear everyone whispering.“Who in our school could 9 that well?Mr.Brown waited a while before saying,“Since this student worked so hard on the posters,she deserves a prize,too.Our mystery(神秘)artist is our new student-Suzy Khan!Mr.Brown thanked
25、her for all the wonderful posters and gave her a professional artists set.“Thank you,she cried.I realized,at that time when I was looking at her 10 face,shed probably never owned anything in her whole life.Everyone started to clap their hands.Suzy Khan gave them a shy smile.I knew then Suzy was goin
26、g to be all right.第 19 页 1.A.bag B.book C.box D.bottle 2.A.learn B.borrow C.stay D.send 3.A.near B.up C.down D.opposite 4.A.copy B.note C.train D.photo 5.A.something B.anything C.everything D.nothing 6.A.colorful B.common C.ugly D.wonderful 7.A.photos B.books C.poster D.gifts 8.A.importantly B.final
27、ly C.sadly D.hopefully 9.A.draw B.make C.write D.think 10.A.sad B.beautiful C.small D.excited 第 20 页 答案 一、单项选择 1-5 BCCAD 6-10 BBADA 二、完形填空 1-5 BACAA 6-10 DCBAD _ _ 一、单项选择 1.When I_at the bus stop,I realized I had left my backpack at home.A.arrived B.arrives C.will arrive D.was arriving 2.My mother u
28、sually goes out for a walk after she finishes_the dishes.A.doing B.done C.do D.to do 3.We 第 21 页 _English for many years and we consider it important.A.learn B.learned C.have learned D.will learn 4.All our compositions _by Mr.Li yesterday afternoon.A.check B.checked C.are checked D.were checked 5.I
29、think he is one of _photographers in the world.A.good B.better C.best D.the best (附：单项选择 1-5,2022 海淀区九年级第一学期期末练习)二、阅读理解 A Inventions All Around Us Every invention has a story.These stories often have a lesson to teach,too.Here are the stories of 第 22 页 some everyday household inventions.Canned Food
30、and the Can OpenerGet It Right!Peter Durand invented canned food in 1810,but there was a problem.Durand didnt have a good way to open the cans.In 1858,Ezra Warner invented a can opener.It used a piece of metal to cut and remove the top from the can,but it was difficult to use.Finally,in 1870,William
31、 Lyman added a wheel to the can opener.The metal went around the top of the can and removed it easily.Finally,people were able to open cans without a lot of work.Canned food was soon popular.Frozen FoodA Little Good Luck Can Help!Clarence Birdseye had the chance to go on a trip to 如 e Arctic.When pe
32、ople there caught fish,they put the fish in a container(容器)of ice to freeze it quickly.When people cooked the fish later,it was still good!This gave Birdseye an idea.He thought people could also have this kind of food at home.In 1926,Birdseye invented frozen food.People were 第 23 页 able to store foo
33、d in freezers for a long time.Air ConditioningOne Answer to Two Problems!Printing companies make books,so they use a lot of paper.Sometimes,changes in the weather can hurt the paper.In 1902,Willis Carrier invented air conditioning to control the temperature inside his printing company.This saved the
34、 paper.People soon realized other benefits of air conditioning.They started to air condition their homes in the summer.Carriers invention changed the world!1.When was canned food invented?A.In 1810.B.In 1870.C.In 1902.D.In 1926.2.After the trip to the Arctic,Clarence Birdseye invented _.A.canned foo
35、d B.can openers C.frozen food D.air conditioning 3.Changes in weather _ in Willis 第 24 页 Carriers company.A.helped to keep food B.hurt printing paper C.caused health problems D.made rooms comfortable 4.According to the passage,which of the following may lead to inventions?A.Peoples needs.B.Public su
36、pport.C.Modern technology.D.Practical suggestions.B Looking for an original way to raise money for charity?Has your school run out of clever and fun ideas?Dont give up.There are several ways to support your favorite charity and enjoy yourselves at the same time.How about holding a bean bath competit
37、ion?“How does this help?you may ask yourselves.Well,its very 第 25 页 simple really-you agree to sit in a bath full of baked beans,then for every minute you stay in it,people pay money!The longer you stay in the bath,the more money you collect for the charity your school has chosen!Its extremely messy
38、,but its good fun!Just a piece of advice,though.Let your parents know what youre doing.Wear old clothes because theyre going to need washing after the competition!Heres another idea that we used at my school:organize a car wash.Everybody who has a car sooner or later washes it or has it washed.So wh
39、y dont you and your classmates do the job?The money the car owners pay for having their cars washed will go towards your charity.When we did it,we had an amazing time!At first,some of us were worried about getting wet or dirty and its true.But we also had fun,and at the end of the day it was really
40、worth it!On the other hand,if you dont feel like getting wet or messy,but have some musical talent,how about organizing a 第 26 页 street concert?Street musicians can make a lot of money and so can you if youve got the talent and courage it takes to play in front of an audience.You just need to find a
41、 suitable place(make sure youre allowed to play music in that public place),practise for a few hours with your friends first,and give it a try!I hope all these ideas have helped you a bit,and if youve got any other great suggestions,we would love to hear them.We can publish them,so other people can
42、use them,too.Good luck!5.Holding a bean bath competition,you would_.A.ask yourselves many questions B.sit in a bath full of baked beans C.put on old clothes after the bath D.ask your parents to wash the clothes 6.What did the writer think of the car wash?A.He thought they could have fun.B.He was ups
43、et about getting wet.第 27 页 C.He thought many students were too worried.D.He thought it was an easy way to collect money.7.From the passage we can know the writer is a _.A.parent B.student C.driver D.singer 8.The writer writes this passage to_.A.ask readers to do something funny for charity B.tell r
44、eaders about charity events they can go to C.suggest fun ideas for people to raise money for charity D.show some ways for people to organize charity events C For me,Facebook is about staying in touch with friends,whether that means writing on someones wallor sending them a private message.Its a usef
45、ul website for finding long-lost friends,arranging parties and sharing photos.But thats not all:Facebook is now 第 28 页 being used by all kinds of people for all kinds of reasons!Do you want to play computer games?Log on to Facebook.There are now thousands of entertaining games and puzzles to help yo
46、u pass the time.Do you want to find cafs,cinemas and bowling alleys in your area?Log on to Facebook pages that you can join and like,which makes it very easy to search for fun things to do near you.I think its brilliant to have all the information that you want on just one website!People are now joi
47、ning Facebook to make professional connections too,either with people who do the same kind of work,or with businesses that are looking for new people to work for them.Its a pretty good idea since so many people use Facebook these days,especially young people!Even students log on to Facebook to look
48、for summer or part-time jobs.And thats not all!Now there are hundreds of pages about sports teams,TV programmes and pop 第 29 页 stars to look at on Facebook.However,I believe the main reason most young people use Facebook is because its so easy to let the world know what you think about different thi
49、ngs or people,whether its about a new film at the cinema or whether you prefer Rihanna with long or short hair.You can even write comments directly on other peoples Facebook pages including some stars pages.But you have to be careful because giving your opinion online can be dangerous.We mustnt forg
50、et that Facebook is meant to be fun and shouldnt be used for saying bad things about people around us.I recently read a news article about a student who had to leave school because she made rude and unfair comments about a teacher on her Facebook wall.Several other school students have been in troub