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1、1231. But theres no need to worry if you have never skied before.(SB U15)但是，如果你從沒滑過雪，也不必擔心。there is no need的意思是“沒有必要”，后接不定式或介詞for短語。4(1)我們沒有必要在這兒停留。 _(2)We have plenty of time, _ _ (所以沒有必要匆忙).Theres no need for us to stay here.so there is noneed to hurry5( ) Your father will be better soon. There is

2、 no need _.A. to worry about B. worriedC. to be worried D. to be worried about6Cthere is no need后要接不定式。worry about或be worried about后要有賓語。注意need不是介詞about的賓語，故A、D兩項錯誤。試比較：There is no need to worry about him.72. Should you have enough energy left after a day on the slopes, you can take a dip in the poo

3、l(SB U15)如果在山坡上玩了一天之后還有足夠的精力，你還可以在游泳池里泡一泡 8“should+主語+動詞原形”意為“如果/萬一”，是一個省略句，原句為：If you should have enough energy在虛擬語氣中，if引導的條件狀語從句中有were或助動詞should, were, had，可以把if省掉，把should, were, had放到句首。9Should _(你碰到) Sunny, tell her she owns me a letter. Had _ (要是你去了演唱會), you would have seen the famous singer. S

4、hould _ (萬一下雨了), the crops would be saved. _ (如果我是你), I would accept the invitation.10【答案】you run intoyou attended/gone to the concertit rainIf I were you/Were I you11( ) This printer is of good quality. If it _ break down within the first year, we would repair it at our expense. (2009天津卷)A. would B

5、. shouldC. could D. might12B虛擬語氣中與將來事實相反的假設，if條件從句中應用情態(tài)動詞should， were+to do或動詞的過去式。133. The city saw a series of fierce fights between blacks and whites in the 1960s (SB U16)在20世紀60年代，這座城市目睹了黑人和白人之間一連串激烈的沖突14英語中有一種形象的表達法是把無生命的事物當作有生命的事物來描寫，以增強句子的表現(xiàn)力。see可用時間或地點作主語，表示某時或某地“經(jīng)歷，發(fā)生，目睹，見證”。類似的詞還有witness,

6、find等。 Dusk saw the little girl _(在街上哭泣) _(上個世紀見證了) the most important scientific development. 【答案】crying in the streetThe last century witnessed 16( ) The next few years _ a series of bad harvests in this country, causing many people to die of hunger.A. met B. happenedC. saw D. made17Csee可用時間或地點來作主

7、語，意為“經(jīng)歷，見證”。181.部分倒裝的各種情況。如：not until, hardly, neither/nor等否定副詞或詞組開頭的句子；so(也), so(that)開頭的句子；as引導的讓步狀語從句。2.全部倒裝的各種情況。如：在以here, there, away, down, now, then等副詞開頭的句子里。倒裝句倒裝句19英語的倒裝有兩大類： 全部倒裝和部分倒裝。20全部倒裝：謂語全部置于主語之前的倒裝全部倒裝：謂語全部置于主語之前的倒裝1.在以here, there, away, in, out, down, up, off, now, then等副詞開頭的句子里。例如

8、：Away went the boy.2.在以介詞短語或方位名詞詞組作地點狀語位于句首時的句子里。例如：In the corner of the room stands a writing-table.South of the city lies a big factory.注意：以上兩種全部倒裝的主語必須是名詞，主語若是人稱代詞，則用部分倒裝。例如：Away he went.213.在there be / live / stand / come / lie結構中，采用全部倒裝。例如：There is a book in the bag.There came shouts for help f

9、rom the river.221.用于一般疑問句、選擇疑問句、反意疑問句中。例如：Has he finished his work?Its a lovely day, isnt it?部分倒裝部分倒裝:部分謂語（如助動詞、情態(tài)動部分謂語（如助動詞、情態(tài)動詞）位于主語之前的倒裝。沒有助動詞詞）位于主語之前的倒裝。沒有助動詞或情態(tài)動詞就用或情態(tài)動詞就用do, does或或did。232.only后接副詞、介詞短語、從句作狀語放在句首時。例如：Only in this way can you learn English well.Only when the rain stopped did the

10、 match start again.如果only后面不是狀語，則不用倒裝。例如：Only he knows this.（only修飾的是主語）243.含有否定意義的副詞和作狀語的詞組，如：hardly, scarcely, never, not, little, nowhere, seldom, nor, neither，by no means, at no time, under no circumstances等置于句首時。例如：Seldom does he go to the cinema.Nor / Neither did I believe him.254.“not onlybut

11、 (also)”連接兩個句子，not only置于句首，它所引導的這部分要部分倒裝，但but (also)所引導的部分不要倒裝。例如：Not only should we study science, but (also) we should pay attention to politics.5.not until引起一個短語或引導一個從句置于句首時，主句中要求部分倒裝。例如：Not until she saw the present did she feel happy.266.“hardlywhen”和“no soonerthan”句型中，當hardly, no sooner位于句首時，

12、主句中要求部分倒裝。例如：Hardly had I entered the room when the phone rang. = No sooner had I entered the room than the phone rang.7.so表示“也”之意，位于句首時，其后要部分倒裝。例如：It was cold yesterday. So is it today.If you go, so will I.27注意：注意：so作“的確、確實”解時，即使位于句首，也不用倒裝。例如： It was cold yesterday. So it was.8.以連接詞so (that)開頭的句子里。

13、例如：So small was the mark that I could hardly see it.So much does he worry about the exam that he cant sleep well.289.as作“盡管、雖然”解時引導的讓步狀語從句要倒裝。其句式結構是：表語(名詞/形容詞/過去分詞)+as+主語+系動詞；副詞+as+主語+謂語動詞；動詞+as+主語+助動詞。例如：Child as he is, he knows a lot.（名詞前不用冠詞）Poor as he was, he was honest.Try as you will, you wont manage it.2910.在if引導的虛擬條件句中，省去if，把were,助動詞had或情態(tài)動詞should移至句首構成倒裝語序。例如：Were I to go there tomorrow, I would visit him. (=If I were to go there tomorrow, )