七年级下册英语Unit4 Save the trees.doc

七 年 级 英 语英语课题Unit4 Save the trees知识点及拓展：1. save v. 拯救To save the trees.拓展：1）to save ones life 救命、拯救生灵 She saved the dogs life. 2）节约、节省It can save water to buy this kind of washing machine. 3）储蓄、保存、积攒In order to save money, he made a desk by himself.2. discuss v. 讨论Lets discuss the importance of trees.拓展：discuss with sb.Lets discuss the plan with Mr. Brown.3. argue, quarrel, debate, discuss & reason1) argue指提出理由或证据为自己一方的看法或立场辩护，着重说理、论证和企图说法。 We heard them arguing in the other room2) quarrel指不友好的、吵吵嚷嚷的大声争论某事，尤其指“吵嘴、吵架”。 He often quarrels about their housework with his wife3) debate指意见对立的双方之间正式或公开的争辩。 When I left, the men were still debating.4) discuss常用词，指就某一个或某一些问题表明观点、看法等，以便统一认识，解决问题。 We should discuss the problem.4. fight v. 与斗争They help fight against pollution.拓展：fight against/ with sb./ sth. 为某人/ 某事而争论/ 打架 Have you fight with your brother just now? fight about/ over sth. 因某事而争论 Dont fight about small things.5. against prep. 反对Are you against it or for it?6. example n. 例子Write down three examples.拓展：1) 表示给某人举例，一般用give。 Give an example. 2) set an example to sb. 给某人树立一个榜样。He set a good example to us. 3) for example 例如，用作插入语。He，for example，is a good student.7. harmful adj. 有害的They take in harmful gases from the air.拓展：1) be harmful for （doing） sth. 对某物有害Its harmful for your health. 2) be harmful to sb. 对某人有害Its harmful to you.8. produce v. 产生、生产This machine can produce oxygen.拓展：1） produce by+ 生产者These tables were produced by him. 2） produce from+ 生产地These tables were produced from Shanghai.9. major adj. 主要的They are major fighter against air production.拓展：major in 主修（学科）Im major in English.10. furniture n. 家具The room had little furniture in it.拓展：furniture属表总称的物质名词（集合名词），没有复数形式，也不和a/ an连用，含义上永远是单数。若要表示“量”，则可以用much, little, a little, a lot of, lots of等修饰，但不能用many, few, a few修饰。11. carry v. 搬运、扛、背The goods will be carried by the train to London.拓展： bring/ take/ carry/ get区别 bring意思为“拿来”、“带来”。指将某物或某人从别处“带来”。Bring me the book, please.take意思是“拿走”，“带走”，把某物或某人从这里“带来”或“拿到”某处之意。It looks like rain. Take a raincoat with you.carry是“带着、搬运、携带”的意思，指随身携带，有背着、扛着、抱着、提着的含义，不表明来去的方向。Do you always carry a handbag?get是去某处将某物拿回来。There is no water in the bottle. Why not get some?12. as a result (最终)结果He won the game as a result.拓展：as a result of 由于He was late as a result of the snow.13. the number of & a number of区别the number of的数量，后面用可数名词复数，但谓语动词用单数。The number of students in our class is 55.a number of许多，相当于many修饰可数名词复数，做主语是，谓语动词用复数。A number of students are planting trees on the hill.14. do ones best to do sth. 尽某人最大的努力做某事= try ones best to do sth.We must do our best to protect the air.= We must try our best to protect the air.15. in many ways 用许多种方法They help us in many ways.拓展：in的用法: 1) 表示时间，意为“在后”，常用于将来时或含有将来意味的句子中。 Ill be back in an hour. 2) 表示地点、位置、范围、空间等。 Look there is a hole in the wall. 3) 表示方式、手段、材料、语言等，意为“用”。Can you answer my question in English？16. in fact 实际上、事实上In fact，I like your picture.17. get v. 得到拓展：1) get sb. sth. 为某人弄到某物 Could you get me a new pen? 2) get + adj. In summer it doesnt get dark until after 7 oclock.18. look around 四下观望，环顾Look around this room.拓展：look 相关短语(1) look after 照看,照料(2) look for 寻找(3) look around (4) look back on回想,回顾(5) look down on看不起(6) look forward to 盼望(7) look into朝里面看(8) look on.as把某人看作(9) look out当心(10) look over仔细检查;翻阅(11) look through浏览;仔细检查(12) look up抬头看;查;找出Grammar现在进行时现在进行时表示1、现在（说话的瞬间）正在进行或发生的动作，强调“此时此刻”。E.g. He is reading . They are talking now.2、当前一段时间内的活动或现阶段正在进行的动作。E.g. They are working these days.3、 某些动词的现在进行时，表预定的计划或即将发生的动作。E.g I am coming.其结构为be+现在分词. 现在分词的变法为：(1) 一般动词直接加-ing 如：sing-singingeat-eating(2) 如以不发音的e结尾,先去掉e再加-ing 如:exist-existing come-coming (3) 以重读闭音节结尾,且末尾只有一个辅音字母(x除外)的动词先双写末尾辅音字母,再加-ing. 如:win-winning begin-beginning 但:mix-mixing kick-kicking explain-explaining专项训练：写出下列动词的现在分词形式work_dance_run_study_sing_have_sit_play_write_shop_study_mix_swim_fitlisten单选：1、 Look! He _their mother do the housework.A. is helping B. are help C. is help D.is helpping2 、_are the boys doing ? They are singing in the room.A .Who B .How C.What D.Where3、 Dont talk here. My mother _.A. is sleeping B .are sleeping C. sleeping D .sleep4 、Danny _. Dont call him.A. is writeing B .is writing C.writing D .writes5 、When_he_back? Sorry, I dont know.A. does,come B.are coming C.is come D.is coming填空1、 Its ten oclock. My mother _(lie)in bed.2、 What _ he_ (mend)?3、 We_ (play)games now.4、 What_you_ (do) these days?5、_he_ (clean) the classroom?6、 Who_ (sing)in the next room?7 、The girl_ (like)wearing a sweater. Look! She_ (wear)a red sweater today.句型转换1They are playing basketball now. (变一般疑问句) playing basketball now? 2.The baby is sleeping. （变否定句） The baby sleeping. 3.They are watching TV. （划线提问） they ? 4.Dont worry. He will come to see you this afternoon. （变同义句） Dont worry. He to see you this afternoon. 5.The workers are at work now. （变同义句） The workers now.Reading 1、 根据句意和所给的首字母完成下列句子。1. He climbed up the tree to get back the kite among the b_.2. We join the army because we want to f_ for our country.3. Before we move in our new house, we need to buy some f_.4. Can you i_ what the world would be like without water?5. The little factory p_ two million pencils every day.2、 语言知识运用。1. The doctor gave him some pills to _ the pain.A. take off B. take in C. take on D. take away2. Do some sports every day. It will help you keep _.A.healthy B.healthily C. kindly D. excitedly3. There are _ people here in our city. Actually, there are _ people here in our city.A. Millions of; three million B. Millions of; millionsC.millions of; three million of D. Million of; three million of4、 What time is it now? It is 20:00. I think we should stop _ first.A. having supper B. have supperC. to have supper D. to having supper5、 I bought _ furniture. Really? What _?A. a new; is it made of B. a new; does it made ofC. a new piece of; is it made of D. a new piece of; does it made of6、 Look at this old bridge! It is made _ stones. A. from B. of C. into D. Up7、 I _ the swimming club if you _ it. A. join; join B. will join; join C. join; will join D. will join; will join8、 He heard someone calling his name, so he stopped and _. But he couldnt see any one. A. looked around B. looked up C. looked into D. looked for9、 we cant live without trees. They make our lives _. I agree. We should stop people _ trees. A. convenient; to cut down B. conveniently; to cut down C. convenient; cutting down D. conveniently; cutting down10、 the little dog helps his owner _ many ways _ his daily life. A. in; at B. on; in C. in; in D. on; on3、 根据中文提示完成下列句子。1、 事实上，他是一个好人。_ _，he is a good man.2、 许多家具是由木材做成的。 A lot of _ _ _ _wood。3. 作家们的灵感许多都来源于他们的日常生活。 Most of the writers ideas _ _ their _ _.4、 换掉你的热水器，否则你将会吸入过量的有害气体。 Change your water-heater, _ you will _ _ too much.5、 如今，许多女性都能兼顾事业和家庭，例如Jane就是其中的一位。 Nowadays, many women have a career and a family Jane _ _.Grammar1、 语言知识运用。1、 look! Peter _ TV happily, but his parents are busy in the kitchen.A. is watching B. watches C. watched D. will watch2、 May I speak to the principal? Sorry, he _ a meeting now. Can I take a message?A. is having B. had C. has D. will have3、 Where is Sally? Her mother _ for her everywhere.A. looks B. looked C. is looking D. was looking4、 Dad _ for paris tomorrow. Really? Lets go and ask him to bring back some presents for us.A. Are going to leave B. Is leaving C. Left D. leaves5、 Listen! _ you _ someone crying?A. Do; hear B. Are; hearing C. Did; hear D. Will; hear6、 Can your brother make a model airplane? Yes, these weeks he _ a new school.A. builds B. is built C. will built D. is building7、 As we know, things like that _ all over the world every day.A. Happens B. Are happenedC. Are happening D. Will be happened8、 Sam, come downstairs, please. I need your help. I dont think I can, mum. I _ on the phone.A. talk B. talked C. talking D. am talking 2、 用所给词的正确形式填空。 Simon _(be) a businessman. He _(have) two sons. One _(study) in No. 1 Middle school, and the other is studying in No.2 Middle School. These days, Simon _(do) a big project and he _(leave) Guangzhou next week. His sons _(be) very happy because they can do everything they like, such as _(sleep) late, _ (watch) TV a lot and _ (eat) a lot of ice-creams. They _(look) forward to it.Speaking and Writing 1、 找出下列单词中划线部分的发音与其他不同的单词。1、 A. star B. study C. stand D. post2、 A.school B. sky C. task D. score3、 A. oxygen B. major C. apologize D. gas4、 A. convenient B. imagine C. disease D. receive5、 A. against B. major C. container D. Save2、 判断句子的正误TF, 并在原句中改正错句。1、 Trees help me in many ways, such as keep the air clean and produce oxygen. （ ）2、 Trees also make out lives more conveniently. ( )3、 A lot of furnitures is make of wood. ( )4、 We can protect our earth by plant more trees. ( )5、 Many people keep cutting down trees because of they want to make money from the wood. ( )More practice1、 翻译下列词组。1、 成千上万 _ 2、通过做 _3、 生物 _ 4、因为 _5、 结果是 _ 6、的数量 _7、 尽力做某事 _2、 语言知识运用。1、 _ young people are waiting in the square to see their idol.A. 6 thousand B. 6 thousands C. 6 thousands of D. Thousand of2、 _ a resule, you have to study harder from now on.A. To B. In C. As D. For 3、 We should protect our enviroment _ more trees.A. in planting B. with planting C. for planting D. by planting 4、 You should cancel the visiting _ the bad weather.A. because B. because of C. why D. by5、_ our fan clubs is becoming larger and larger.A. the number of B. a number of C. the number D. a number单元评价1、 听力（略）2、 语言知识及运用。（共三节，满分3分）第1节 语音（每小题1分，共10分）A、 找出下列单词中划线部分的发音与其他不同的单词。11、 A. skate B. sky C. task D. skirt12、 A. airport B. tick C. test D. step13、 A. point B. spread C. press D. crisp14、 A. carry B. pine C. fly D. diet15、 A. against B. rain C. container D. remainB. 从下列选项中找出重音与其他不同的一项。16、 A. helpful B. rescue C. towel D. discuss17、 A. disease B. address C. perfect D.prefer18、 A. finish B. greeting C. major D. produce19、 A. oxygen B. example C. anywhere D. probably20、 A. appear B. programme C. patient D. bottom第2节 单项选择（共10小题，每小题1分，满分10分）21、 Be silent! Someone _! Can you hear it? A. sings B. sang C. is singing D. will sing 22、 The sky tonight is really beautiful. You can see _ stars smiling to you. A. 3 thousands B. 3 thousands of C. 3 thousand of D. thousands of23、 I cant decide which dress to buy. Can you help me?Of course! I _ the blue one best! A. likes B. like C. am liking D. is liking 24、 _ the help of John, little Tom stops _. So we can enjoy our books now. A. With; crying B. On; crying C. With; to cry D. On; to cry25、 When there is a fire, dont forget to get a wet towel so that you wont _ too much CO2. A. get in B. make in C. put in D. take in 26、 You are really busy!Yes, I must finish the work next week. I _ for London next week.A. leave B. am leaving C. left D. leaving27、 What happened to your mother?Sorry, dad. I made her _ just now. A. angry B. angrily C. happy D. happily28、 The dead teacher asked _ boys to clean the meeting hall. A. a number B. the number of C. a number of D. the number of29、 Can you believe that he gets so much money _ rubbish? A. with collecting B. by collecting C. of collecting D. by collect30、 Will you go to watch the new movie this Sunday?I _ go to watch it if it _ stop raining. A. dont; wont B. dont; dont C. wont; wont D. wont; doesnt 第3节 语法选择(共10小题，每小题，满分10分) A Chinese man _31_ Cai Lun invented paper almost 2,000 years ago. He made paper _32_ wood. He then put all the paper together and made the paper _33_ a book. Now we still use wood to make paper. We use a lot of paper every day. If we keep on _34_ so much paper, there will not be any trees left on the earth. If _35_ no trees, there will be no paper. Every day, people _36_ about 2,800 tons of paper. We use 17 trees to make one ton of paper. This means we are cutting nearly 48,000 trees every day. Since it _37_ more than 10 years for a tree to grow, we must start using _38_ paper now. So how can we save paper? We can use both sides of _39_ paper, especially when we are making notes. We can choose drinks in bottles instead of those in paper packets. We can also use cotton hankerchiefs(手帕) but not paper ones. When we go shopping, we can use fewer paper bags. If the shop assistant gives us a paper bag, we can save it and reuse it later. Everyone can help to save paper. If we all think carefully, we can help _40_ trees. But we should do it now, before it is too late. 31. A. call B. calls C. called D.calling 32.A. from B. of C. into D.for 33.A. from B. of C. into D.for 34.A. waste B. to waste C. wasted D.wasting 35.A. there will be B.there are C. there was D. there wasnt 36.A. take in B.put on C.throw away D.put away 37.A.spends B.takes C. costs D.pays 38.A. many B. few C. fewer D.less 39.A.a B. a piece C.one piece D.many 40.A. protect B.protects C. protecting D. to protecting3、 完形填空 You may think there is only _41_ in the desert of the world. However, it is not true. In the desert, as we know, there is a little _42_, but it is not good enough for most plants. Still we can see some plants live in the desert. There is _43_ in some places in the desert. We call these places oases(绿洲)。 In the oases, there are villages and towns. People grow all kinds of _44_ in the fields there. People also live outside the oases. They have camels, sheep and other animals. _45_ are these animals food and they do not need much water. The _46_ are useful to the desert people in many ways. They eat the meat and drink the milk of the animals. They use the _47_ for carrying water, food, tents and something else. The people of the desert have to keep moving from place to place. They must always _48_ grass or desert plants for their animals. When there is no more _49_ for their animals, they move to another place. The desert people are _50_. No man in the desert would ever refuse to help the people introuble and give them food and water. 41、 A.tree B.stone C.sand D.plant42、 A.rain B.wind C.sunshine D.snow43、 A.stones B.water C.plants D.wood44、 A.crops B.trees C.animals D.fish45、 A.Crops B. Small animals C. The rain D. Desert plants46、 A.animals B.grass C.water D.crops47、 A.dogs B.horses C.elepants D.camels48、 A.look after B.look for C.look up D.look out49、 A.food B.water C.weather D.land50、 A.happy B.ugly C.friendly D.dark4、 阅读理解（共10小题，每小题2分，满分20分） (A) Can trees talk? Yes - but not in words. Scientists have reason to believe that trees do communicate with each other. Not long ago, researchers learned some surprising things. First a willow tree (柳树) attacked in the woods by caterpillars (毛毛虫) changed the chemistry of its leaves and made them tasteless so that the caterpillars got tired of the leaves and stopped eating them. The even more astonishing, the tree sent out a special vapor- a signal causing its neighbors to change the chemistry of their own leaves and make themselves taste also terrible, too. Talk