1、專(zhuān)題十三 情態(tài)動(dòng)詞和虛擬語(yǔ)氣情態(tài)動(dòng)詞考點(diǎn)一 can & could1.表示能力,但could主要指過(guò)去的能力。表示“過(guò)去有能力做成某事”時(shí)通常用was/were able to。The little boy can speak two foreign languages.這個(gè)小男孩會(huì)講兩種外語(yǔ)。Could the girl read before she went to school?這個(gè)女孩上學(xué)前識(shí)字嗎?Everyone was able to escape when the fire broke out.起火的時(shí)候大家都能逃生。2.表示可能(理論上或是邏輯判斷上,并不涉及此事真的發(fā)生),常

2、譯為“往往會(huì),有時(shí)候可能會(huì)”,常用于肯定句中。Although you can find bargains in London,its not generally a cheap place to shop.雖然你有可能在倫敦買(mǎi)到便宜的東西,但通常而言這不是個(gè)買(mǎi)便宜東西的地方。3.表示請(qǐng)求和允許。在問(wèn)句中could語(yǔ)氣比can要委婉。Could I have a word with you?It wont take long.我能和你說(shuō)句話嗎?不會(huì)占用你很長(zhǎng)時(shí)間。You can go back home now.你現(xiàn)在可以回家了。4.表示驚異、懷疑、不相信等態(tài)度。主要用于否定句、疑問(wèn)句或感嘆句

3、中。How can you be so careless?你怎么能這么粗心?5.表示推測(cè),常用于否定句和疑問(wèn)句中,語(yǔ)氣較強(qiáng)。He cant be in the classroom;the light is not on.他不可能在教室里;燈沒(méi)亮。Why are your eyes so red?You cant have slept well last night.你的眼睛為什么紅紅的?你昨天晚上一定沒(méi)有睡好。My favourite book is missing.Who could have taken it?我最喜歡的書(shū)丟了,誰(shuí)會(huì)把它拿走呢?6.cannot/can never.too/

4、enough.表示“再也不為過(guò)”。You can never be too careful when driving a car.開(kāi)車(chē)的時(shí)候你再怎么小心都不為過(guò)。7.cannot but do sth./cannot help but do sth./cannot choose but do sth.表示“不得不/只好做某事”。You cannot choose but go with me.你只能跟我走。練習(xí)：1.請(qǐng)選用適當(dāng)?shù)那閼B(tài)動(dòng)詞填空: can/ could, may/ might, mustWe _ eat in a restaurant if you like.2.請(qǐng)選用適當(dāng)?shù)那閼B(tài)動(dòng)

5、詞填空: can/ could, may/ might, mustMary _ play the violin when she was five.3.請(qǐng)選用適當(dāng)?shù)那閼B(tài)動(dòng)詞填空: can/ could, may/ might, mustTom comes from Australia; he _ speak English very well.4. 請(qǐng)選用適當(dāng)?shù)那閼B(tài)動(dòng)詞填空: can/ could, may/ might, must_ I use your mobile phone?5. I cant speak for everyone, but I _ speak for myself.6

6、. I knew that if I spoke to Myra, I _ get her to call my father.1.答案：can解析：句意:如果你喜歡的話,我們可以去餐館吃飯。本句中can意為“可以”,用于提出建議。2.答案：could解析：句意:瑪麗五歲時(shí)就會(huì)拉小提琴。句中could表示“能力”,用于過(guò)去時(shí)態(tài)中。3.答案：can/ must解析：句意:湯姆來(lái)自澳大利亞,他能很好地說(shuō)英語(yǔ)。can表示能力。句意:湯姆來(lái)自澳大利亞,他英語(yǔ)一定說(shuō)得很好。must表肯定的推測(cè),意為“一定;準(zhǔn)是”。故本題應(yīng)填can/ must。4.答案：May/ Can/ Could解析：句意:我可以使

7、用你的手機(jī)嗎?本句中may、can、could均可用于征求對(duì)方的許可。5. 答案：can解析：考查情態(tài)動(dòng)詞。句意為:我不能代替每個(gè)人說(shuō)話,但我可以代表我自己。can表示有能力做某事。故填can。6.答案：could解析：考查情態(tài)動(dòng)詞。句意為:我知道如果我和Myra說(shuō)一聲,我就能讓她給我的父親打電話。can表示有能力做某事;根據(jù)knew可知,此處應(yīng)用can的過(guò)去式could。故填could。考點(diǎn)二 may & might1.表示請(qǐng)求、允許、許可,might比may語(yǔ)氣委婉。You may use my bike.你可以用我的自行車(chē)。2.表示推測(cè),常用于陳述句中,語(yǔ)氣比較弱,把握性不大。might

8、語(yǔ)氣比may還要弱。We might be going to Spain on holiday this year.今年我們或許會(huì)去西班牙度假。3.may/might as well+動(dòng)詞原形,意為“最好,倒不如”。You may/might as well do it at once.你最好立刻開(kāi)始做。4.may well+動(dòng)詞原形,意為“完全能,很可能”。He may well be late for class.他上課很可能遲到。5.may用于祈使句中,表示祝愿。May you return in safety.祝你安全歸來(lái)。練習(xí)1.請(qǐng)選用適當(dāng)?shù)那閼B(tài)動(dòng)詞填空: can/ could, m

9、ay/ might, mustI _ come to the party with you, but I am not sure.2.請(qǐng)選用適當(dāng)?shù)那閼B(tài)動(dòng)詞填空: can/ could, may/ might, mustAs you are here, you _ as well stay and make the best of it.3.請(qǐng)選用適當(dāng)?shù)那閼B(tài)動(dòng)詞填空: can/ could, may/ might, mustYou _ feel that all the training is a waste of time, but Im sure later youll be gratefu

10、l that you did it.4.We _ as well go home, because theres nothing more to do.答案：1.may解析：句意:我可能和你一起去參加聚會(huì),但我不確定。根據(jù)空后but I am not sure可知,本句應(yīng)用may表示“可能”。2.答案：may/ might解析：句意:既然你在這里,你不妨留下來(lái)并且好好利用它。“may/ might as well”意為“不妨,還不如”。3.答案：may解析：句意:你可能覺(jué)得所有的訓(xùn)練都是浪費(fèi)時(shí)間,但我肯定,以后你就會(huì)感激你自己訓(xùn)練過(guò)了。本句中may意為“可能”。4.答案：may/might解析

11、：考查情態(tài)動(dòng)詞。句意為:我們還是回家吧,因?yàn)檫@里已經(jīng)沒(méi)有別的事可做了。may/might as well是固定短語(yǔ),意為“倒不如,還是的好”。故填may/might。考點(diǎn)三 must1.表示主觀上的“必須,應(yīng)該”,其否定形式mustnt表示禁止。對(duì)比:have to表示客觀上的“不得不”,可用于各種時(shí)態(tài)。以must開(kāi)頭的問(wèn)句,其否定回答用neednt或dont have to。Must I clean the dining room at once?No,you neednt./No,you dont have to.我必須馬上打掃餐廳嗎?不,你不必。Students mustnt play

12、with mobile phones in class.學(xué)生課上不準(zhǔn)玩手機(jī)。I had lost my key,so I had to wait outdoors.我丟了鑰匙,所以不得不在門(mén)外等。2.表示“非要,偏要”做某事,表達(dá)出說(shuō)話者的一種不滿(mǎn)情緒。Can I smoke here?No.Go to the smoking section,if you must.我能在這里抽煙嗎?不能,如果你非要抽煙的話,就去吸煙區(qū)吧。Why must you be talking so loudly when others are sleeping?別人都在睡覺(jué),為什么你偏要這么大聲說(shuō)話?3.表示對(duì)具體

13、事情的推測(cè),意為 “一定,肯定”,語(yǔ)氣較強(qiáng),只用于肯定句中。Since nobody gave him any help,he must have done the research on his own.既然沒(méi)有人給他任何幫助,那他一定是獨(dú)自完成的這項(xiàng)研究。練習(xí)：1.請(qǐng)選用適當(dāng)?shù)那閼B(tài)動(dòng)詞填空: can/ could, may/ might, mustCharlotte, _ you put a spanner in the works?2.請(qǐng)選用適當(dāng)?shù)那閼B(tài)動(dòng)詞填空: can/ could, may/ might, mustCant you stay a little longer?Its g

14、etting late. I _ go now. My daughter is home alone.3.請(qǐng)選用適當(dāng)?shù)那閼B(tài)動(dòng)詞填空: can/ could, may/ might, mustYou _ be Carol. You havent changed a bit after all these years.4.If you _ have a cigarette, choose a seat in the first row of the smoking section.答案：1.答案：must解析：句意:夏洛特,你偏要從中搗亂嗎?本句中must意為“偏要”。2.答案：must解析：句意

15、:你不能再待時(shí)間長(zhǎng)一點(diǎn)嗎?時(shí)候不早了,我現(xiàn)在必須得走了。我女兒自己在家呢。本句中must意為“必須”。3.答案：must解析：句意:你一定是卡蘿爾。這些年來(lái)你一點(diǎn)都沒(méi)變。本句中must意為“一定”,表肯定的推測(cè)。4.答案：must解析：考查情態(tài)動(dòng)詞。句意為:如果你一定要吸煙,你就選吸煙區(qū)第一排的座位。must意為“非要,一定”。 if you must (do sth. )表示雖不贊同,但可允許,意為“如果你一定要(那么做)。故填must。考點(diǎn)四 shall1.用于第二、三人稱(chēng)的陳述句中,表示命令、許諾、警告、強(qiáng)制、威脅、決心等;此外,頒布法律、規(guī)定時(shí)也用shall。You shall do

16、as your father says.你要按照你父親說(shuō)的那樣做。One of our rules is that every student shall wear school uniform while at school.我們規(guī)定中的其中一項(xiàng)是:每位學(xué)生在校期間都要穿校服。Each party shall respect the articles of this contract.任何一方都要尊重合同的條款。2.用于第一、三人稱(chēng)的疑問(wèn)句中,表示說(shuō)話人征求對(duì)方的意見(jiàn)或向?qū)Ψ街甘尽hall the man standing outside have a try?站在門(mén)外的那個(gè)人可以試試嗎?

17、練習(xí)：1.Persons under 18 _ not be employed in night work.2.Its a pity that he _ have failed the exam.答案：1.shall解析：考查情態(tài)動(dòng)詞。句意為:不得雇傭十八歲以下的人做夜間工作。shall用于第三人稱(chēng)作主語(yǔ)的陳述句中時(shí),表示決心、命令或指示。故填shall。2.答案：should解析：考查情態(tài)動(dòng)詞。句意為:他考試竟然沒(méi)及格,真是遺憾。should可以表示驚訝、憤怒、失望等特殊情感,意為“竟然”。故填should。考點(diǎn)五 should & ought to 1.表示義務(wù),常意為“應(yīng)該”,用于各種人

18、稱(chēng)。ought to的語(yǔ)氣比should強(qiáng)烈。Parents should/ought to take good care of their babies.父母應(yīng)該照看好他們的孩子。2.should表示推測(cè),意為“可能,(按道理)應(yīng)該”,多指對(duì)未來(lái)合乎理想的情況或結(jié)果的一種期盼。Its nearly 8 oclock.He should be here at the moment.快八點(diǎn)鐘了。此刻他應(yīng)該在這兒了。3.should表示驚訝、意外等,意為“竟然,居然”。You should wear slippers in the classroom.你竟然在教室里穿著拖鞋。4.用在if條件句中,

19、should表示可能性很小的一種虛擬語(yǔ)氣。If I should see him,I would tell him the news.如果我見(jiàn)到他,我就告訴他這個(gè)消息。考點(diǎn)六 will & would1.用于各種人稱(chēng)，表示主語(yǔ)的意愿和意志例：He will take you home.他愿意送你回家。2.用于第二人稱(chēng)的一般疑問(wèn)句，表示請(qǐng)求例：Will/Would you go with me？你愿意和我一起去嗎？3.will用來(lái)敘述目前的習(xí)慣；would表示過(guò)去的習(xí)慣例：He would get up early when he lived in the country.他住在鄉(xiāng)下時(shí)總是早起。

20、考點(diǎn)七 need & dare1.實(shí)義動(dòng)詞有人稱(chēng)和數(shù)的變化，可用于肯定句、否定句或疑問(wèn)句中，構(gòu)成否定句或疑問(wèn)句時(shí)要用助動(dòng)詞do，does，did。例：2.情態(tài)動(dòng)詞沒(méi)有人稱(chēng)和數(shù)的變化（dare可以有過(guò)去式dared），直接接動(dòng)詞原形，主要用于否定句和疑問(wèn)句中，構(gòu)成否定句和疑問(wèn)句時(shí)不用助動(dòng)詞。3.另外，dare作情態(tài)動(dòng)詞時(shí)，還可用于條件句中；作實(shí)義動(dòng)詞時(shí)，dare用于疑問(wèn)句或否定句，后面的to也可省略；I dare say是習(xí)慣說(shuō)法，意為“我想，我認(rèn)為”練習(xí)：I _ not tell you what he did, for fear that he should be angry with me

21、.答案：dare解析：考查情態(tài)動(dòng)詞。句意為:我不敢把他做的事情告訴你,我怕他會(huì)對(duì)我發(fā)脾氣。根據(jù)本句中的for fear可知,此處應(yīng)用情態(tài)動(dòng)詞dare,意為“敢”。故填dare。考點(diǎn)八 “情態(tài)動(dòng)詞+have done”用法1.could have done的疑問(wèn)或否定形式表示對(duì)過(guò)去發(fā)生的行為表示懷疑或不肯定,其中couldnt have done 多用于語(yǔ)氣強(qiáng)烈的否定,意為“過(guò)去不可能做過(guò)”。could have done在肯定句中表示“本來(lái)能做但卻沒(méi)做”。The accident could have been avoided;the driver couldnt have slowed do

22、wn.這事故本來(lái)是可以避免的;司機(jī)肯定沒(méi)減速。2.may/might have done 表示對(duì)過(guò)去行為的推測(cè),意為“可能做過(guò)”。might 所表示的可能性比較弱,此外might have done 還可表示“本可能做而實(shí)際上未做”,含有輕微的責(zé)備語(yǔ)氣。You might have given him more help,though you were busy with your work.你本來(lái)可以給他更多的幫助,盡管你工作很忙。3.must have done 表示對(duì)過(guò)去行為的推測(cè),意為“一定,想必做過(guò)”,語(yǔ)氣十分肯定。It must have rained last night,as

23、the ground is wet.昨晚一定下雨了,因?yàn)榈孛媸菨竦摹?.should/ought to have done 用于肯定句時(shí),表示“本該做某事而實(shí)際上未做”;用于否定句時(shí),則表示“不該做某事反而做了”。Sorry,Mum!I failed the job interview again.Oh,its too bad.You should have made full preparations.對(duì)不起,媽媽,我這次工作面試又失敗了。噢,太糟糕了。你本來(lái)應(yīng)該進(jìn)行充分準(zhǔn)備的。5.neednt have done表示“本來(lái)不必做某事而實(shí)際上卻做了”。I actually neednt ha

24、ve bought so much foodonly three people came.我實(shí)際上不必買(mǎi)這么多食物只有三個(gè)人來(lái)了。6.had better have done 用于事后的建議,含輕微責(zé)備的口吻,意為“當(dāng)時(shí)最好做了某事”。I had better have started earlier.我要是早點(diǎn)起程就好了。7.would rather have done sth.表示“寧愿當(dāng)時(shí)做某事”,其否定形式would rather not have done sth.表達(dá)相反的含義,兩者都含有“后悔”之意。I would rather have taken his advice.我寧愿

25、當(dāng)時(shí)接受了他的建議。8.would like/love to have done sth.表示“過(guò)去愿意做某事但未做成”。I would love to have gone to the party last night,but I had to work extra hours to finish my report.我昨天晚上本想去參加聚會(huì),但我不得不加班寫(xiě)完報(bào)告。練習(xí)：1.He has no idea what the book is about. He _(read) it very carefully.2.You know the story very well. You _(rea

26、d) the book.3.I _(read) the book before, since I find some marks and notes.4.He _(go) to Beijing, for I saw him in the park this morning.答案：1.答案：cant have read解析：考查情態(tài)動(dòng)詞+ have done的用法。句意為:他不知道這本書(shū)的內(nèi)容。他一定沒(méi)有非常仔細(xì)地閱讀過(guò)這本書(shū)。表示對(duì)過(guò)去的事情進(jìn)行猜測(cè)、推斷時(shí),應(yīng)用“情態(tài)動(dòng)詞+ have done”結(jié)構(gòu); cant have done sth.意為“過(guò)去不可能做過(guò)某事”,表示否定推測(cè),符合句意。

27、故填cant have read。2.答案：must have read解析：考查情態(tài)動(dòng)詞+ have done的用法。句意為:你對(duì)這個(gè)故事很熟悉。你一定讀過(guò)這本書(shū)。此處表示對(duì)過(guò)去發(fā)生的事情進(jìn)行肯定猜測(cè),應(yīng)用must/could/may/might + have done結(jié)構(gòu);根據(jù)句意可知,此處表示有把握的推測(cè),應(yīng)用must have done。故填must have read。3.答案：must have read解析：考查情態(tài)動(dòng)詞+ have done的用法。句意為:我以前一定讀過(guò)這本書(shū),因?yàn)槲野l(fā)現(xiàn)了一些標(biāo)記和注釋。表示對(duì)過(guò)去的事情進(jìn)行猜測(cè)、推斷時(shí),應(yīng)用“情態(tài)動(dòng)詞+ have done”結(jié)

28、構(gòu);根據(jù)句意可知，此處表示較有把握的推測(cè)。故填must have read。4.答案：cant have gone解析：考查情態(tài)動(dòng)詞+ have done的用法。句意為:他不可能去北京,因?yàn)榻裉煸缟衔以诠珗@看見(jiàn)他了。表示對(duì)過(guò)去發(fā)生的事情進(jìn)行猜測(cè)、推斷時(shí),應(yīng)用“情態(tài)動(dòng)詞+ have done”結(jié)構(gòu)。故填cant have gone。考點(diǎn)九 幾組易混情態(tài)（助）動(dòng)詞1）would & used towould 表示過(guò)去反復(fù)的動(dòng)作，常與every day，often frequently等連用例：When he was abroad，he would often read as many books

29、as possible.在國(guó)外時(shí)，他總是盡可能多地讀書(shū)。used to表示過(guò)去的狀態(tài)、習(xí)慣，但現(xiàn)在已經(jīng)不存在例：She doesnt get up so early as she used to.她不像以前那樣起得那么早了。2）could & was able to & could have donecould 表示過(guò)去的能力，但不代表是否做例：He could ride a bicycle at the age of 5.五歲時(shí)他就會(huì)騎自行車(chē)了。was able to 表示過(guò)去有能力并且成功地做了，相當(dāng)于managed to do sth.例：The fire spread very qui

30、ckly but everyone was able to get out.火蔓延很快，但大家都成功地逃了出來(lái)。could have done 過(guò)去本有能力做某事，但沒(méi)有做3）must & have tomust多表示由于主觀需要或責(zé)任感而有必要、有義務(wù)去做某事，意為：必須例：I must clean the room because it is too dirty.由于房間太臟了我必須打掃。have to表示為客觀條件、環(huán)境所迫而做某事，意為：不得不例：He has to leave school because he cant afford his schooling.因?yàn)樗恫黄饘W(xué)費(fèi)，所

31、以不得不輟學(xué)。4）didnt need to do & neednt have donedidnt need to do過(guò)去沒(méi)必要做某事，不強(qiáng)調(diào)是否做例：I didnt get up that early yesterday，for I didnt need to.昨天我沒(méi)那么早起床，因?yàn)闆](méi)必要。neednt have done 過(guò)去沒(méi)必要做某事，但做了例：I neednt have got up that early yesterday but I had to because the dog barked all the time.昨天我本不必那么早起床，但是由于狗一直叫，所以我不得不起床

32、。虛擬語(yǔ)氣一、虛擬語(yǔ)氣用于非真實(shí)條件句中從句謂語(yǔ)形式主句謂語(yǔ)形式例句與現(xiàn)在事實(shí)相反過(guò)去式（be動(dòng)詞用were）would/should/could/might動(dòng)詞原形If I were you，I would seize the chance.如果我是你，我就會(huì)抓住這個(gè)機(jī)會(huì)。與過(guò)去事實(shí)相反had+過(guò)去式would/should/could/mighthave+過(guò)去分詞If you had taken my advice，you wouldnt have failed.如果你聽(tīng)了我的建議，你就不會(huì)失敗。與將來(lái)事實(shí)相反過(guò)去式should +動(dòng)詞原形were to+h詞原形would/should/

33、could/might動(dòng)詞原形If he shouldnt come tomorrow，we would put off the meeting.如果他明天不來(lái)，我們就推遲這個(gè)會(huì)議。使用虛擬語(yǔ)氣條件句時(shí)要注意的幾點(diǎn)：1.當(dāng)條件狀語(yǔ)從句表示的行為和主句表示的行為所發(fā)生的時(shí)間不一致時(shí)，這種句子被稱(chēng)為“錯(cuò)綜時(shí)間條件句，動(dòng)詞的形式要根據(jù)它所表示的時(shí)間做出相應(yīng)的調(diào)整例：If you had followed my advice you would be better now.如果你聽(tīng)了我的建議，你現(xiàn)在就好一些了。（從句與過(guò)去事實(shí)相反，主句與現(xiàn)在事實(shí)相反）2.在if引導(dǎo)的非真實(shí)條件從句中，謂語(yǔ)動(dòng)詞含wer

34、e，had，should，可將if省略，但需將were，had，should提到主語(yǔ)之前例：If I were at school again，I would study harder.Were I at school again，I would study harder.如果我還有上學(xué)的機(jī)會(huì)，我會(huì)更加努力學(xué)習(xí)。3.有時(shí)假設(shè)的條件并不總是通過(guò)if引導(dǎo)的條件從句表達(dá)，而是隱含在某些詞、短語(yǔ)或上下文中，此種句子為“含蓄條件句”，常見(jiàn)的詞或短語(yǔ)有：without，in case，but for，for fear that，otherwise等例：Without your help，we couldn

35、t have finished the work ahead of time.= But for your help，.=If it had not been for your help，.=Had it not been for your help，.沒(méi)有你的幫助，我們不可能提前完成這項(xiàng)工作。4.even if，even though也可用于虛擬語(yǔ)氣，其引導(dǎo)的從句的形式與if從句在虛擬語(yǔ)氣中的形式相同練習(xí)：If he (catch) the morning train, he wouldnt have been late for the meetingIf we (book) a table

36、 earlier, we wouldnt be standing here in the long queue.二、虛擬語(yǔ)氣在wish, if only(=how I wish), as if后的從句中條件從句謂語(yǔ)形式例句從句謂語(yǔ)動(dòng)作與主句謂語(yǔ)動(dòng)作同時(shí)發(fā)生過(guò)去式（be動(dòng)詞用were）If only/How I wish I were a flying bird！我多希望我是一只會(huì)飛的鳥(niǎo)兒啊！He looks as if he were an artist.他看上去好像是名藝術(shù)家。從句謂語(yǔ)動(dòng)作先于主句謂語(yǔ)動(dòng)作發(fā)生had+過(guò)去分詞If only I had seen the film！=How I

37、 wish I had seen the film！我要是看過(guò)那部電影該多好啊！She speaks English so fluently as if she had stayed in America for a long time.她說(shuō)英語(yǔ)如此流利，好像她在美國(guó)待過(guò)很長(zhǎng)時(shí)間似的。從句謂語(yǔ)動(dòng)作后于主句謂語(yǔ)動(dòng)作發(fā)生would+動(dòng)詞原形He learns English so hard as if he would go to the U.S.A.他如此努力學(xué)習(xí)英語(yǔ)，就好像他要去美國(guó)。注意：當(dāng)句子所敘述的是真實(shí)的或極有可能發(fā)生的或存在的事實(shí)時(shí)，as if從句要用陳述語(yǔ)氣。例：It seems

38、as if it is going to rain.天似乎要下雨。He walks as if he is drunk.他走起路來(lái)像是醉了。練習(xí)：1、We wish we (can) fly into space by spacecraft one day.2、She works hard as if she never (know) fatigue.答案：1、could2、knew三、虛擬語(yǔ)氣用在主句含“堅(jiān)持、命令、建議、要求”的名詞性從句類(lèi)別名詞性從句謂語(yǔ)動(dòng)詞形式例句一堅(jiān)持：insistshould+動(dòng)詞原形（should可以省略）He suggested that we（should）s

39、tart off early the next day.His suggestion was that we（should）start off early the next day.他建議我們第二天早點(diǎn)出發(fā)。It was suggested that we（should）start off early the next day.人們建議我們第二天早點(diǎn)出發(fā)。二命令：order, command四建議：advise, suggest, propose, recommend四要求：require, request, demand, ask注意：suggest作“暗示，表明”講，insist作“堅(jiān)持說(shuō)”講，后面賓語(yǔ)從句的謂語(yǔ)動(dòng)詞不使用虛擬語(yǔ)氣形式（should+動(dòng)詞原形），而使用陳述語(yǔ)氣。例：The smile on his face sugge