陕西省南郑中学高中英语外研版选修7课件：M6 The World’s Cultural Heritage P4 Grammar.ppt

“Will you please allow us to excavate the caves?” The archaeologists requested that ________________________________. “We must be paid on time.” The workers insisted that ___________________. 1. 地点状语从句 此类状语从句通常有从属连词where， wherever 引导。 从句可位于主句之前， 也可位于主句之后。 I found the books where I left them. Wherever he happens to be, John can make himself at home. 2) 地点状语从句在句首时常兼有抽象条件 的意味。 Where there is a will, there is a way. Wherever there is smoke, there is fire. 状语从句 2. 条件状语从句 引导此类从句的从属连词有： if, unless, so(as) long as, (只要) in case, on condition that, supposing that / suppose that (假设) provided that / providing that (倘若) 一般情况下，当主句是将来时的时候，从句要用一般现在时。 如： Do not come unless I call you. 注意: 引导的从句中的谓语动词只能是肯定式，且unless不能引导虚拟语气条件句。 I will lend it to you as/so long as you handle it with care. 2. In case there is a fire, what will you do first? 3. You can go swimming on condition that you don’t go too far from the river bank. 4. I’ll go swimming providing/provided my wages are paid. 5. Suppose/Supposing that we can’t get enough food, what shall we do? ??3.??让步状语从句 引导此类从句的从属连词有： although, though, even if, even though, while, as, whether…or…, no matter+疑问词和疑问词+ever。 1)?although 和 though 尽管，虽然 a. He is unhappy though/although he has a lot of money. b. Although/Though it was raining hard, yet they went on playing football. c. Clever though you may be, you cannot do that. though 引导的从句不仅可以用于自然语序，也可用于倒装语序。 He said he would come; he didn’t, though. 还可用作副词, 意为“可是，然而”， 置于句末。 2) even if 和even though 即使，纵然 两者都有退一步设想的意思，可通用。 从句中既可用陈述语气，也可用于虚拟语气。 Even though/if it is raining, we’ll go there. We won’t be discouraged even if/though we fail ten times. Even if I were busy, I would go. 4. as 尽管， 虽然 as 引导的让步状语从句用于书面语， 比though, although引导的从句更有表现力，语气更强。as引导的从句一般放在主语之前，且必须使用倒装语序， 即将从句中的表语、状语或动词原形置于句首。若表语是名词，前置时要省略冠词。 如: Child as he is, he knows a lot. Smart as she is, she studies hard. Much as I like it, I won’t b