高中2019屆英語語法專題講義 冠詞
在肯定句中can表示有“能力”做，be able to表示通過想辦法/努力等而能夠做成了某一件事， 相當(dāng)于managed to do…或succeeded in doing sth. birds can fly.the fire spread through the hotel very quickly but everyone was able to get out.4. may / might as well do sth “還是…好”、“不妨” you might as well tell me the truth. 你還是把真相告訴我的好。5. must和have to 1) must表示的是說話人的主觀看法, 而have to強(qiáng)調(diào)客觀需要。2）否定形式含義不同。mustn’t禁止，不許可，don’t have to不必3) must 偏要（做令人不快的事）eg. must you shout so loudly?6. shall和should1) 表示說話人征求對方意見和向?qū)Ψ秸埵荆糜诘谝弧⑷朔Q。 when shall my father be able to leave hospital?shall 2) 用于第一、三人稱2) 用于第二、三人稱,表示說話人給對方的命令、警告、允諾或威脅以及說話人的決心。you shall go with me (命令) / you shall have the book when i finish it.33（允諾）he shall be punished （威脅）/ nothing shall stop me from doing it. (決心)3) 規(guī)定（在條約、規(guī)則、法律） 1) 表示勸告和建議“應(yīng)該”2) “按道理應(yīng)當(dāng)”“估計(jì)”(=ought to)they should be there by now, i think. 3） 用于第一人稱表示說話人的一種謙遜、客氣、委婉的語氣。i should advise you not do that.我倒是勸你別這樣做。should 4） 在條件句中表示“萬一”，主句不一定用虛擬語氣。ask tom to ring me up if you should see him. /should i be free tomorrow, i’ll come. 5） （why / how + ）should 結(jié)構(gòu)表示說話人對某事不能理解，感到意外、驚異等意思， 意為“竟然”，也用在某些從句中。 it seems so unfair that this should happen to me.這種事竟然發(fā)生在我身上真不公平。7. will 和would 1) 表示意志和意愿。will 指現(xiàn)在，would指過去。if you will listen to me, i’ll give you some advice.2) 表示請求、建議，would比will委婉、客氣。will (would ) you please pass me the book?3) 表示習(xí)慣性動(dòng)作，“總是”“慣于”，will指現(xiàn)在，would指過去。fish will die without water. every evening, she would sit by the window, deep in thought.4). 表示功能， 意為“能” 或“行” the machine won’t work.5) 表示預(yù)料或猜想。it would be about ten when he left home.猜想他離開家時(shí)大約十點(diǎn)。 8. would & used to1) 表示過去持續(xù)的狀態(tài)和情況用used to; would不與表示狀態(tài)的動(dòng)詞連用。共178頁，當(dāng)前第85頁123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178