【2019年秋季课程】九年级Unit 13 We're trying to save the earth!适用学科初中英语适用年级初中三年级适用区域人教版新目标课时2课时知识点动词辨析，动词词组辨析，名词辨析，介词辨析，形容词辨析教学目标知识与技能：动词辨析，动词词组辨析，名词辨析，介词辨析，形容词辨析过程与方法：对变化规则所需要的条件进行判断，能够做到游刃有余，运用灵活自如。情感态度价值观：激发对英语学习的热情，增强信心。教学重点动词辨析，动词词组辨析，名词辨析，介词辨析，形容词辨析教学难点谈论污染和环境保护教学过程一、课堂导入通过What are you doing to…?这一句型来询问学生如何保护环境或让学生之间互相询问，复习本节课所需句型。二、复习预习1. A good beginning makes ________ good ending.A. aB. anC. theD. /【答案】A【解析】本题考查冠词的用法。表示类别用a，故答案为A。2. What ________ news it is! Nobody ________ it.A. a surprising; believesB. surprising; believesC. a surprised; believeD. surprised; believe【答案】B【解析】news是不可数名词，排除A和C；修饰事物用surprising，排除D ，故答案为B。3. There are no words to describe ________ I miss my hometown.A. how muchB. how manyC. how soonD. how long【答案】 A【解析】本题考查副词辨析。句意：没词描述我多么思念我的家乡。结合句意可知答案为A。4. ---Why are you so tired these days?---Well, I have ________ homework to do.A. too muchB. too manyC. much tooD. many too【答案】A【解析】本题需要“太多”，排除C和D；homework不可数，故答案为A。第 1 页


5. I couldn’t do it ________ your great help. Thanks a lot!A. withB. withoutC. forD. to【答案】B【解析】本题考查介词的用法。句意：没有你的帮忙，我无法做这件事。结合句意可知答案为B。6. I can’t afford _________ a big house now.A. buyB. to buyC. buyingD.buys【答案】 B【解析】本题考察非谓语动词的用法。“不能负担得起做某事”用can’t afford todo sth.，故答案为B。三、知识讲解知识点1： litter(1) 可用作动词或名词，意为“乱扔；垃圾”。如：Don’t litter up your room.(2) litter表示废弃物(尤其指在公共声所乱扔的废纸)、垫草时是不可数名词，其它情况是可数名词。如：The streets were full of litter.知识点2: bottom(1) 名词，意为“底部；最下部”。如：He was always bottom of the class in math.(2) 动词或形容词，意为“底部的”。如：Put your books on the bottom shelf.知识点3： afford(1) 动词，意为“承担得起；买得起”。如：I can’t afford this car.(2) 常构成短语：afford to do sth. 意为“负担得起做某事”。如：I can’t afford to buy this car.知识点4：take part in(1) 意为“参加，参与……活动”。如：Take part in something you believe in. (2) join多指参加组织，成为其中的一个成员。take part in指参加活动。第 2 页


式icreat是ve，意为“创造性的，有创造力的”。如：Express your creative side.知识点10：辨析gate与door(1) 这
两个词都”“门有的意思。(2) gate指
大门口。(3) door指
屋子、衣柜等”“门的或“门口”。如：He is waiting for you at the park gate. Close the door when you go out.知识点11：throw away意为“扔
掉；抛弃”，如果代词做宾语，要放在两 a如：That’s rubbish you can throw it词中间。way.知识点12：辨析pull down与bring down(1) pull down意为“拉
下， do”。(2) bring拆毁wn意为“拿
下；带下；搬。”下第 3 页
如：I will never forget the day when I joined the Party.知识点5：realize意为“了解；意识到；实现”。不用于进行时。如：Do you realize that all of these shirts are half off?知识点6：without是介词，意为“没有”，后面接名词或动名词。如：Without the sun, nothing would grow.知识点7：recycle可用作动词，也可用作名词，意为“回收利用；再利用”。如：We should try to recycle all our waste paper.知识点8: inspiration名词，意为“灵感；鼓舞人心的人或事物”。如：Many artists have drawn their inspiration from nature.知识点9： creativity(1) 名词，“创造力；独创性”。如：A good teacher can encourage our creativity.(2) 形容词形


利用”。如：The waste water was put to good use.四
、例题精析【
例题1】【题
干re---Why are you so ti】d these days? ---Well, I have ________ homework to do.A. too muchB. too manyC. much tooD. many too【答案】A【解析】本题需要“太多”，排除C和D；homework不可数，故答案为A。【
例题2】【题
干 ________ yI couldn’t do it】our great help. Thanks a lot!A. withB. withoutC. forD. to【答案】B【解析】本题考查介词的用法。句意：没有你的帮忙，我无法做这件事。结合句意可知答案为B。【
例题3】【题
干gI can’t afford _________ a bi】 house now.A. buyB. to buyC. buyingD.buys【答案】 B【解析】本题考察非谓语动词的用法。“不能负担得起做某事”用can’t afford todo sth.，故答案为B。【
例题4】【题
干 sThe boy is】leeping. Please ________ the radio.A. turn upB. turn downC. turn onD.turn off【答案】B【解析】本题需要“调小”，故答案为B。【
例题5】【题
干lIt usua】ly ________ Mum about half an hour to cook.A. paysB. takesC. spendsD. costs【答案】B第 4 页
如：He tried to pull down the zipper(拉链) normally. He’ll need help to bring the computer down.知识点13：put sth. to good use意为“好好


例题6】【题
干aI hope everyone c】n care about ________ the environment and stop________ things.A. protecting, wastingB. protecting, to wasteC. protect; wastingD. protect; to waste【答案】 A【解析】本题考察非谓语动词的用法。
根据句意体会可知答案为A。课程
小结本节课主
要学习了第十三单元同重要知识点，的望希学们能够这熟练掌握些用同法，
时要重点掌握住保护环境的表达方法第 5 页
【解析】本题考查It takes sb. st. to do sth.，故答案为B。【