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中小学最新教育资料中小学最新教育资料Unit13Wearetryingtosavetheearth一、重点词组1.noisepollution噪音污染advantagesanddisadvantages优点和缺点2.atthetopofthefoodchain在食物链顶端upsidedown上下颠倒；倒转somekindsof几种intheocean’secosysterm在海洋生态系统worseandworse越来越糟3.notonly…butalso…不但……而且……not…anymore不再4.cutdown减少hearof听说cutoff割掉beginwith以……开始payfor付费；付出代价addup加起来throwaway扔掉pull…down拆下；摧毁setup建立bringback恢复；使想起looklike看起来像turnoff关掉（turnon打开turnup调高turndown调低）turn…into…使……变成……5.begoodfor对……有益（begoodat擅长begoodwith善于应付）beknownfor因……而闻名beableto能够goshopping去购物takepartin参加takeaction采取行动playapartin参与某事；在……方面起作用6.savetheproblem解决问题solvetheproblem解决问题makeadifference起作用；有影响putsth.togooduse好好利用某物(putoff推迟putaway收拾起来puton穿上；上演putout熄灭)winaprize获奖7.catchacold感冒catchsb.’seyes引起某人得注意catchthetrain赶上火车catchupwith赶上；跟上8.“限定词+whole+名词”“all+限定词+名词”thewholefamilyallthefamily9.endangered濒危的；濒临灭绝的indanger在危险中10.over=morethan超过beagainst反对……（befor支持……）11.join/joinin/takepartin12.oneselfenjoyoneself玩得开心hurtoneself伤害自己introduceoneself自我介绍dressoneself自己穿衣byoneself靠某人自己teachoneself=learn…byoneself自学lookafteroneself=takecareofoneself照顾自己13.outof用法归纳（1）从……里出来Heisrunningoutoftheclassroom.他正在从教室里跑出来。(2)在……外，离开Fishcan’tliveoutofwater.鱼离开水就不能活。(3)由于，出于……的原因Theyhelpedusoutofkindness.他们出于好心而帮助了我们。(4)缺乏，没有Heisoutofbreath.他上气不接下气。(5)在……范围之外Theboyhasbeenoutofdanger.那个男孩脱离了危险。14.diev.死deathn.死deadadj.死的dyingadj.奄奄一息的dieof因…而死（死因多来自内部）（+oldage,illness,sorrow,cancer…）diefrom由于…而死（原因多来自外部）（+wound,atraffic,accident,anearthquake…）15.win+比赛项目/奖品/战争beat+战胜的对手16.setup(=start/establish/putup/found)二、重点语法1.trytodosth.尽力做某事usedtodosth.过去常常做某事plantodosth.计划做某事中小学最新教育资料中小学最新教育资料needtodosth.需要做某事hopetodosth.希望做某事affordtodosth.承担得起做某事can’taffordtodosth.担负不起做某事2.playapartindoingsth.参加做某事startdoingsth.开始做某事bydoingsth.通过做某事begoodatdoingsth.擅长做某事3.remembertodosth.记得去做某事（rememberdoingsth.记得做过某事）4.leadto(道路)等通往……；引起（结果等）（leadsb.todosth.致使/诱惑某人做某事）leadsb.tosomeplace带领某人去某地5.beharmfultosb./sth.对某人/某物有害6.beaninspirationtosb.对某人来说是一个鼓舞人心的人/物7.takingyourownbagswhenshopping购物时自带购物袋whenshopping意为“购物时”，连词when引导时间状语从句时，可以换成以when引导的介词短语或分词短语，whendoingsth.意为“做某事时”。Whendoingthework,youmustbecareful.8.现在进行时助动词be+doing9.现在完成时助动词have/has+done10.被动语态三、作文DearJim,Howareyou?Thanksforsendingmetheshirt.Iloveitverymuch.Redismyfavoritecolor!Itmakesmefeelenergetic.Andtheshirtsuitsmejustfine.EverytimeIwearit,Iwillthinkofyou.Iamfinerecently.LastweekIhadabirthdayparty.Manyofmyfriendscameandwereallyhadawonderfultimetogether.Howareyoudoing,Jim?Ialwaysmissthedayswhenwewereonthesummercamplastsummerholiday.IhopeyoucanvisitChinasomeday.Pleasewritebacksoon.Yours,LiLei