最新九年级人教版 unit13 We’re trying to save the earth知识点详解及练习

1 Unit 13 We re trying to save the earth 一 重点短语一 重点短语 充满了垃圾 把垃圾扔入河中 清理干净 减少空气污染 产生影响 处于食物链的顶端 在最近的 20 到 30 年间 参加 采取行动 关掉 累加 扔掉 好好利用 拆下 成为 的榜样 建立一个网站 以 而闻名 不仅 而且 二 经典句型二 经典句型 1 Even the bottom of the river was full of rubbish 2 Everyone in town should play a part in cleaning it up 3 The air is badly polluted because there are too many cars on the road these days 4 To cut down air pollution we should take the bus or subway instead of driving 5 I used to be able to see stars in the sky 6 The air has become really polluted around here I m getting very worried 7 No scientific studies have shown that shark fins are good for health 三 重点详解三 重点详解 1 Even the bottom of the river was full of rubbish Yes but people are throwing litter into the river litter 和 rubbish 都可指 垃圾 用作不可数名词 rubbish 指 没用的东西 被扔或将要丢弃的无用的东西 不可回收 litter 指 室内或公共场所 乱扔的废物 纸屑 不要的包装纸 废瓶等 还可回收 e g Throw the rubbish out 把垃圾扔出去 The room is full of rubbish 房间里堆满了垃圾 Pick up your litter after a picnic 野餐后将废弃物收拾好 2 It s good for health and it doesn t cost anything cost v 花费 使付出 鹰击长空 基础不丢 2 指花费金钱 主语通常是物 cost 的过去式和过去分词均为 cost e g The new shirt cost Mr Wang 200 yuan 王先生花了 200 元买了新衬衫 How much does the new computer cost 新电脑花了多少钱 take spend pay 或者表示从过去某一时间开始一直延续到现 在并还可能持续下去的动作 表示过去某段时间的经历 结构 has have 过去分词 标志词 already yet ever never since for e g I haven t finished my homework yet 4 情态动词 1 情态动词本身有一定的词义 表示说话人的情绪 态度或语气 但不能单独作谓语 只 能与其他动词构成谓语 常见的有 can could may might must need shall should will would 等 2 情态动词无人称和数的变化 后接动词原形 否定式是在情态动词后面加 not 个别情 态动词有过去式形式 可用来表达更加客气 委婉的语气 e g Ken can climb up the tress like a koala Tracy could ride a bicycle when she was five years old You mustn t play with fire It is dangerous 实战演练 I 用所给词的适当形式填空 1 The old man used be a teacher 2 We should clean the room every day 3 Look Tom sleep in his room 4 Lots of trees plant on the hill every year 5 He live here for 20 years II 单项选择 1 He promised to pick me up at the school gate However he yet A didn t arrive B doesn t arrive C isn t arriving D hasn t arrived 2 Ba Jin one of the greatest writers in China as People s Writer A is regarded B has regarded 6 C is regarding D regards 3 Where is Tom He in his room A is readingB reads C readD was reading 4 May I go out now Dad No You let your mother know first A can B may C need D must 5 Her son Coke but now he milk A used to drink is used to drinking B used to drinking drinks C is used to drinking used to drink D is used to drink is drinking 1 He go out with his parents but now he staying at home alone A used to is used to B is used to used to C use to is used toD is used to is used to 2 The interesting book me 10 yuan A spent B took C paid D cost 3 We must do something useful to pollution A cut offB cut up C cut down D cut in 4 Smoking can lung cancer You d better give it up A work on B lead to C take awayD put out 5 What are the of bike riding It can help cut down air pollution A advantages B reasons C resultsD ideas 6 Are you going to any of the events Yes Maybe long jump and high jump A take part inB join C attend D join in 7 I can t afford him an expensive birthday present A to buyB buying C for buyingD buy 8 Remember to the lights when you leave the room OK I will A turn onB turn down C turn upD turn off 高分秘籍 过手训练 7 9 The girl always has some money to snacks A spendB pay for C takeD cost 10 Look boys are playing on the playground Yes them is about 200 A The number of A number of B The number of The number of C A number of the number of D A number of A number of 11 Your coat looks nice It s made cotton And it was made Shanghai A in by B from by C by in D of in 12 he I have been to Beijing Really When did you do there A Not only but also B Neither nor C Either or D Too to 13 The old city walls are dangerous So they will be soon A pulled downB pulled out C pulled overD pulled off 14 The old man built himself a house wood A out ofB in to C to useD in for 15 They decided to a small business to make some money A set upB put up C take up D go up 16 My alarm clock doesn t work It needs A to be repairedB repair C to repairD for repairing 17 His death was by a high fever A spreadB caused C gotD showed 18 His mother a worker in that factory A used to beB used C used to beingD used be 19 Your classroom is very clean Sure It after school every day A is cleaned B cleans C cleaned D is cleaning 20 Thank you for A wake me up B waking up me C waking me up D wake up me 二 完形填空 Around two weeks ago I was called to judge a contest at a college All of the students had been given a piece of paper 1 a topic on it The first one to speak looked a little 2 My fellow students and respected judges he said loudly this is a n 3 contest I have been given this paper he continued to speak on a topic with just a few minutes preparation while those coming after me have more 4 to work on their speeches He then 5 the stage and went out of the hall I met him later by chance Who said life is fair I asked him with a smile And I asked him to 8 walk with me to my 6 Have you seen the figures 数字 they show 7 a new car is being introduced into the market saying how economic 经济的 it is Yes he nodded But they put a line after all these figures They say all the figures are in ideal 理想的 road conditions Yes he said again Can you show me some ideal road conditions I asked him and he smiled The car that sells well is the one that will 8 power and speed on the worst roads That car is the winner We had reached my car Don t look for ideal contest conditions I said 9 the unfair and come out a winner I looked 10 as I drove away and saw him smile and wave and I knew he would fight the unfair from then on 1 A with B without C by D about 2 A