【正文】 t/advise/remend/propose/order/mand/demand/require/request /desire +(should)do 注：動詞對應(yīng)的名詞和句型也用（should）do表虛擬suggestion /order/adviceIt’s suggested/ordered that+（四）It’s necessary/important/vital that…(should) do (五) It’s (high/about) time that…should do/did (六) would rather +句子對現(xiàn)在/將來虛擬用did 對過去虛擬用had done1. It seems as if the sun ____ round the earth since it rises in the east and sets in the west. A. circles B. is circling C. has been circling d. were circling2. All the doctors in the hospital insisted that he ____ badly wounded and that he ____ at once. A. should be。 be operated on Ｂ. were。 must be operated on C. was。 should be operated D. was。 be operated on3. ____ for the doctor’s careful treatment, he ____ till last year. A. If it is not。 can’t live B. Were it not。 couldn’t live C. Had it not been。 couldn’t have lived D. If they were not。 couldn’t live4. We ____ last night, but we went to the concert instead. A. must have studied B. might study C. should have studied D. would study5. With a little more care, you ____ this traffic accident.A. could avoid B. would avoid C. could/would have avoided D. must have avoided語法四 ====情態(tài)動詞表猜測must只用于肯定句/表示很有把握的猜測/翻譯成“肯定/一定”；can/could用于疑問句和否定句；may/might用于肯定句/表示沒有把握的猜測/翻譯成“可能也許”mustn’t have done 絕對錯/是無效選項must必須，“不必”用needn’t/don’t have tomustn’t 禁止/不準一、情態(tài)動詞+ do/be表示對現(xiàn)在行為或動作進行猜測You’ve been working all day. You must be very tired. Someone is knocking on the door. It can’t be Lucy. She’s still in the library at this time.二、情態(tài)動詞+have done/have been表示對過去行為或動作進行猜測a. must have done表示對過去某事的肯定猜測。其否定或疑問形式都用can(could) 來表示.Since the road is wet, it must have rained last night.He can’t have missed the way. I drew him a map.“The dictionary has disappeared. Who could/can have taken it?”b. may / might have donemay / might have done 表示推測過去某事“也許”發(fā)生了.I can’t find my keys. I may / might have left them at the school yesterday.c. could have done 在肯定句型中, 往往用作委婉的批評.本可以做什么,而沒做。 有時也用作猜測.You could have done it better.Tom could have taken the dictionary.d. ought to / should have done和 ought not to / shouldn’t have done本該做而事實上沒做 本不該做而事實上做了e. needn’t have done 本不必做卻做了The usage of “shall” 表征求(用在第一、三人稱)(1) —— The room is so dirty. we clean it?”A. Will B. shallC. Would D. Do(2) I asked Miss Jones if I close the window.A. shall B. willC. would D. should I asked Miss Jones, “Shall I close the window?”(3) We want someone to design the new art museum for us. _____ the young fellow have a try?A. May B. ShallC. Will D. NeedShall my daughter do your shopping for you?表承諾 (用在第二、三人稱)Her father promised that he shall buy her a puter if she passed the National College Entrance Exam.表命令（正式文件/場合）It has been announced that candidates shall remain in their seats until all the papers have been collected.It has been announced that all the students shall put on masks before going to school in case they are infected with SARS virus.You shall obey my orders.He shall leave the country at once.Foreign countries shall not interfere in our internal affairs.It shall snow tonight. (表警告)語法五 ====Grammar 省略Ellipse 1)省略 主語+be 狀語從句+主從句主語一致+從句中含有be動詞While (we are) developing the economy, we should protect the environment.You must be careful when (you are)crossing the street.When(she was) told of the news, she got very excited.Once (it is) seen, it can never be forgotten.If (you are)bitten by a snake, you should send for help and don’t walk.I will not go even if (I am) invited.You shouldn’t keep silent when (you are) spoken to.Though (he was) exhausted, he stayed up late.She hurried out of the room, as if (she was)angry.2) 省略 it is/wasIf possible/ if necessary//if so// if not//when necessary3)不定式to之后的省略We do not visit my parents as much as we ought to (visit my parents).I don’t like coffee, but I used to (like coffee). Be/ have不能省略的情況：My hometown is no longer what it used to be. Why didn’t you e to the meeting? I would have (e), but I got a terrible stomachache.If I hadn’t got a terrible stomachache, I would have e. Aren’t you the waitress in this restaurant? No, (I am not). And I don’t ______.A. want to be B. want toC. want D. like to Did you drink any wine at the party? I’d love ____ much, but I had a stomachache that day.A. to have drunk B. to drinkC. drinking D. having drunkWould like/love to do/have done4) The firefighters did all (that)they could (do) to put out the fire. ……………….did what they could to put out the fire. The boy did what he could to help support his family. The boy did all (that) he could (do) to help support his family. 盡力/竭盡所能語法六 ====Grammar 反意疑問句 1．動詞think/believe/suppose/guess主語第一人稱時，依從句 I /We think he should have a rest, shouldn’t he ? I/we don’t think they are right, are they ?主語第二、三人稱時，依主句He believes that nothing is impossible, doesn’t he ?You don’t believe that he dare go there by himself, do you ?2．情態(tài)動詞must/can/could/may/might表猜測時，不依情態(tài)動詞He must be at home now, isn’t he ?He must have known it, hasn’t he ?He must have known it yesterday, didn’t he ?3．祈使句Please be quiet, will you ? Yes, I will. // No, I won’t.Don’t be late again, will you ? Yes, I will. // No, I won’t.Let’s sing together, shall we?Let us go, will you?4．前否后肯 He went to Xiamen yesterday, didn’t he? Yes, he did. // No, he didn’t. He didn’t go to Xiamen yesterday, did he? Yes, he did. // No, he didn’t. Aren’t you the waitress in this restaurant? No,(I am not). And I don’t ______.A. want to be B. want toC. want D. like to語法七 ====代詞部分否定與完全否定Both of us don’t