【文章內(nèi)容簡介】
t put on more clothes in case you should catch a cold. Will you give me a cigarette? This will be what you need. She will stand there sleeping for hours. Ok, I will do it. Can I help you, sir? I am checking out. Could you give me the bill? Of course we can wait. Could it be the charge for the fruit? I can39。t help thinking of it. Must I go with you? No, you needn39。t. You mustn39。t fet your medical card. Oh, it is wet outside. It must have rained yesterday. So it must be slippery outside. Do be careful! You needn39。t have told me that much. I dare not say it is ugly. How dare you say so? Tip: 1) shall表示發(fā)言者的意志 ,包括諾言、決心、強(qiáng)制等 。 shall用于詢問對方的意向。 2) should 表示義務(wù),責(zé)任等。 3) will 用于第二人稱疑問句中 ,詢問對方意志或請求。 will+原形動詞用于所有人稱 ,表意愿。 would +原形動詞表示過去一段 時間的習(xí)慣。 4) can, could 在口語中相當(dāng)于 may, might,表示許可。 can, could 表示能力 ,相當(dāng)于 be able to。 can, could 表示懷疑、推測 ,一般用于疑問句或否定句。 can,could用于慣用語。 can‘ t help或 couldn’ t help+動名詞表示不得不、忍不住。 5) must表示必須、義務(wù)等 ,強(qiáng)調(diào)主觀因素。 need可以對 must引導(dǎo)的一般疑問句作否定回答。 must的否定式表示不準(zhǔn) ,禁止等意思。 must+have+過去分詞表示對過去情況的推斷。 must+原形動詞表示對現(xiàn)在情況的推斷。 needn39。t+have+過去分詞表示過去不必做卻已經(jīng)做了的事。 6) dare作為情態(tài)助動詞,一般只能用于疑問句或否定句中。 5. A phrasal auxiliary verb( have (got) to, had better/would sooner/rather (? than)/cannot (help) but/be (not) to/be supposed to/ought to/used to/be about to/be able to ? ) It’ s getting late. I