重要的短语、句型和惯用法.ppt

重要的短语、句型和惯用法2.so,neither引导的倒装句,为了避免和前一句话的内容重复，英语中习惯用so,neither引导的倒装句。a.So+be/助动词/情态动词+主语。表示某人也是如此。---Mikehasboughtsomeforeignstamps.---SohasBob.=Bobhasboughtsome,too.b.Neither+be/助动词/情态动词＋主语，表示某人也不。---MotherhasneverbeentoJapan.---NeitherhasFather.=FatherhasneverbeentoJapan,either.c.So＋主语＋be/助动词/情态动词。表示果真如此(赞同),请同学们与a.区别。---Mikeisrightintheclassroom.---Soheis.=Yes,heisreallyintheclassroom.3.It's+时间+since动词过去式。自从...起已有...时间了。⑴It'stwoweekssincewemetlast.(自从我们上次见面已有两个星期了)⑵HowlongisitsinceweleftBeijing?(自从我们离开北京已有多久了4.(1)祈使句+and(那么)...Gostraightonandyou'llseeaschool.=Ifyougostraighton,you'llseeaschool.(2)祈使句+or...否则...Workhard,oryouwillfallbehindtheotherstudents.=Ifyoudon'tworkhard,you'llfallbehindtheother13.findit+形容词+todoIfinditusefultolearnEnglishwell.(我发觉学好英语是很有用的)find+宾语+名词Ifindhimagoodboy.(我发现他是个好男孩.)find+宾语+形容词Ifindthedooropen/closed.(我发现门开/关着)Ifindourbagsfilledwith/fullofpresents.(我发现我们的包装满了礼物)find+宾语+doingIfoundanoldmanlyingoutsidejustnow.find+宾语+doneIopenedmyschoolbagandfoundthekeysleftintheclassroom.14.Idon‘tthink+肯定句我想...不Idon'tthinkI'lltakeit.(我想我不买它了)请注意:中文意思否定在从句中,但是英语的表达否定在主句中。15.(1)preferAtoB=likeAbetterthanB喜欢A胜过B.Ipreferfishtochicken.=Ilikefishbetterthanchicken(2)preferdoingAtodoingBIpreferreadingtowatchingTV.(3)prefertodoAratherthandoBHepreferstoplaysoccerratherthanstayinfrontofhisPC.16.hadbetterdosth.最好干某事.否定:hadbetternotdosth.You'dbettercatchatrain.You'dbetternottalkinclass.You'dbetternotbelatefortheclass.特别注意:hadbetter后面跟be动词词组,不可漏掉be.17.(1)Itisadj.of+宾格+todosth.ItisverygoodofyoutoteachmeEnglish.(这里good描述you)(2)Itisadj.forsb.todosth.It’sdifficultforhimtoworkoutthismathproblem.(这里difficult描述toworkoutthismathproblem)18.(1)Ittakessb.sometimetodosth.(干某事化费某人多少时间)=sb.spendsometimeonsth.(in)doingsth.Ittookmehalfanhourtodothework.=Ispenthalfanhourindoingthework..(2)sb.pay钱for物某物化费了某人多少钱(3)sb.spend钱on物(4)sth.costsb.钱Ipaidthirtyyuanforthecoat.(*pay的过去式为paid而不是payed.)=Ispentthirtyyuanonthecoat.=Thecoatcostmethirtyyuan.19.havebeento某人曾去过某地(现在人不在那儿)havebeenin+