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第21课时九年级Units 1314,第1页,考点一,cut down,使用方法,【,课文原句,】,Well,to,cut down,air pollution,we should take the bus or subway instead of driving.,为了降低空气污染，我们应该乘坐公共汽车或者地铁，而不是开车。,(,九,P98),第2页,(1)cut down,意为“降低”，是“动词副词”结构短语，所接宾语若为名词，宾语可位于,down,前面或后面；若为代词，只能位于,down,前面。,Youd better cut the article down to about 2,，,000 words.,你最好把这篇文章缩减到,2 000,字左右。,第3页,(2)cut down,还可表示“砍倒”。,They cut down the big tree.,他们砍倒了这棵大树。,(3),含有,cut,短语：,cut off,切断；切除,cut into,把,切成,cut up,切碎,cut in,插队；插嘴,第4页,1,(,江苏扬州江都模拟,)It is impolite for children to,when their parents are talking with others.,A,cut down B,cut out,C,cut in D,cut short,第5页,2,(,山东青岛中考,)Our country is taking action to,air pollution.,A,cut down B,cut up,C,cut out D,cut off,第6页,考点二,表示,“,花费,”,含义单词辨析,【,课文原句,】,Its good for health and it doesnt,cost,anything,！它对健康有益而且不花钱！,(,九,P98),第7页,cost,spend,take,pay,表示“花费”区分,词汇,使用方法,cost,事/物cost人时间/金钱；还能够强调抽象代价,spend,人,spend,时间,/,金钱,(in)doing/on sth.,take,It,takes,人时间,to do,pay,人,pay,金钱,for,物,第8页,3,(,山东济宁中考,)That one mistake almost,him his life.,A,took B,paid C,cost D,spent,第9页,考点三,be harmful to,使用方法,【,课文原句,】,This,is,not only cruel,but also,harmful to,the environment.,这种做法不但残忍，而且对环境有害。,(,九,P99),第10页,be harmful to,意为“对,有害”，相当于,do harm to,或,be bad for,。,Smoking is harmful to our health.,Smoking does harm to our health.,Smoking is bad for our health.,吸烟对我们健康有害。,第11页,4,(,福建泉州质检改编,)The farm chemicals remained on the vegetable and fruit are,to our health.,Yes.They may cause lots of diseases.,A,important B,harmful C,necessary,D,healthy,第12页,考点四,do something to do sth.,【,课文原句,】,Sharks may disappear one day if we do not,do something to stop,the sale of shark fins.,假如我们不采取行动阻止鲨鱼翅销售，总有一天鲨鱼会消失。,(,九,P99),第13页,do something to do sth.,意为“采取办法去做某事”，相当于,take action to do sth.“,采取行动去做某事”。,People should take action to protect the environment.,人们应该采取行动来保护环境。,第14页,考点五,afford,使用方法,【,课文原句,】,Yes,we cant,afford,to wait any longer to take action,！是，我们不能再等了，必须采取行动！,(,九,P100),afford,意为,“,负担得起,(,后果,),；买得起,”,。常与,can,could,be able to,等连用，多用于否定句和疑问句中。,第15页,It is too expensive,and I cant afford it.它太贵了，我买不起。,We cant afford to go abroad this summer.今年夏天我们没有,足够钱去国外。,第16页,5,(,天津中考,)I am afraid we can not,to take a taxi.Lets go by underground instead.,A,refuse B,afford,C,forget D,fall,第17页,考点六,pay,使用方法,【,课文原句,】,I think its a great idea that you now have to,pay for,plastic bags in some stores.,我认为现在有些商店塑料袋需要购置这个想法很好。,(,九,P100),第18页,(1)pay(sb.)money for sth.,付钱,(,给某人,),买,I have to pay them 20 pounds for this room each month.,我每个月要付给他们,20,英镑房租。,(2)pay for sth.,付,钱,I have to pay for the book.,我不得不付钱买这本书。,第19页,(3)pay for sb.替某人付钱,Dont worry!Ill pay for you.别担心，我会给你付钱。,(4)pay sb.付钱给某人,They pay us every month.他们每个月给我们酬劳。,第20页,6,(,河北中考,)This food is free.You dont have to,it.,A,look for B,pay for,C,ask for D,wait for,第21页,考点七,throw,使用方法,【,课文原句,】,Do you often,throw away,things you dont need anymore,？你经常把你不再需要东西扔掉吗？,(,九,P102),throw“,扔；抛,”,，其过去式和过去分词分别为,threw,和,thrown;throw away,意为,“,扔掉；抛弃,”,。,You shouldnt throw away your old clothes.,你不应该把旧衣服扔掉。,第22页,7,(,福建中考改编,)Dont,the waste paper.We can collect and recycle it.,Youre right.Everyone should be a greener person.,A,blow away B,put away,C,throw away D,give away,第23页,考点八,look back,使用方法,【,课文原句,】,Looking back,at these past three years,回望过去三年,(,九,P107),第24页,(1)look back(at/on sth.),意为“回首,(,往事,),；回想；回顾”。,We can learn something whenever we look back.,每当回首往事，我们都能学到东西。,When I look back at those days,I realize I was very happy.,当我回想起那些日子，我意识到那时我非常高兴。,第25页,(2)look其它常见短语,look for寻找look at看look up向上看；查找,look after照料look through浏览,第26页,8,(,湖北黄冈中考,),these past three years,which teachers will you miss most?,Mr.Jiang.Hes helped me a lot.,A,Looking back at,B,Looking for,C,Looking through,D,Looking after,第27页,9,(,山东潍坊中考,)Why do you,Liu Hulan?,Because she is a great hero.,A,look like B,look down,C,look over D,look up to,第28页,考点九,Its time to do sth.,句型,【,课文原句,】,And now,its time to,graduate,现在到毕业时候了,(,九,P107),Its time,(for sb.)to do sth.,表示,“,该,(,是某人,),做某事时候了,”,。,Tom,its time to get up.,汤姆，该起床了。,第29页,Its time for,n,.(,v,.ing),意为“该做某事了，到了做某事时间了”，相当于“,Its time to do sth.”,。,Be quiet,everyone.Its time for class.,大家平静，该上课了。,第30页,【,拓展,】,与,time,相关句型还有,Its,the,序数词,time,to do sth.,表示,“,某人第几次做某事,”,，能够与,Its,the,序数词,time,that,从句相互转换。,Its the first time for me to visit Disney land.I feel so excited.,Its the first time that I visit Disney land.I feel so excited.,这是我第一次参观迪士尼乐园。我感到很兴奋。,第31页,10,(,黑龙江龙东中考改编,)Its time for me _,goodbye to my mother school.I will never forget all _,love.,A,to say;teachers,B,saying;teachers,C,to say;teachers,D,saying;teachers,第32页,考点十,first of all/congratulate,使用方法,【,课文原句,】,First of all,Id like to,congratulate,all the students who are here today.,首先，我想祝贺今天全部在座同学们。,(,九,P110),第33页,(1)first of all,意为“首先”，常放在句首表示次序，后面往往接,next,then,等，其反义词组为,at last,in the end,。,First of all,let me introduce myself to you.,首先，让我向你做一下自我介绍。,第34页,(2)congratulate,意为“祝贺”，通惯用于“,congratulate sb.on sth.”,，表示“为某事而祝贺某人”。,She congratulated me warmly on my good exam results.,她热情地祝贺我考试取得了好成绩。,第35页,congratulation是congratulate名词形式，其复数形式常单独使用。,Ive got the first prize.我得了一等奖。,Congratulations！祝贺！,第36页,考点十一,thirsty,使用方法,【,课文原句,】,You,were,all so full of energy and,thirsty for,knowledge.,你们朝气蓬勃，渴求知识。,(,九,P110),第37页,thirsty“,渴望；口渴”；,be thirsty for,意为“渴望；,渴求”，后跟名词或动词,ing,形式作宾语。,We are thirsty for success.,我们渴望成功。,第38页,11,(,山东淄博中考,)After the football match,the players were very,and tired.,A,cool B,full,C,lively D,thirsty,第39页,12,(,原创,)The children in countryside are really thirsty,knowledge.,A,for B,to,C,at D,of,第40页,考点十二,set out,使用方法,【,课文原句,】,As you,set out on,your new journey,you,shouldnt forget where you came from.,在你们踏上新征程,时，不要忘记你们来自哪里。,(,九,P110),第41页,(1)set out,意为“出发；启程”，其后常跟“,for,地点”，表示出发去某地。,The army are about to set out.,部队就要出发了。,Lingling and I will set out for Hangzhou.,玲玲和我将启程去杭州。,第42页,(2)set out on sth.,意为“开始进行新或主要事情”。,When we set out on this project,we knew it would be difficult.,我们开始着手这个项目时就知道它极难。,第43页,(3)set out to do sth.,意为“着手做某事”，相当于“,set about doing sth.”,。,At five in the morning,he set out to do his work.,清晨五点他就开始工作。,As soon as she got home,she set about preparing lunch.,她一到家就开始准备午饭。,第44页,13,(,湖北随州中考,)As we,on our new journey,we shouldnt forget where we came from.,A,take out B,set out,C,cut out D,blow out,第45页,14,(,山东滨州中考,)People now in many big cities have to,early to avoid the heavy traffic in the morning.,A,set out B,put out,C,take out D,give out,第46页,
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