2015江苏专转本英语.ppt

★主语从句一律用陈述句语序,即主语在前,谓语在后. 连接词that在从句中无实际意义,但不能省略. ★whether可以引导主语从句, 但if不能. ★ whoever, whatever, whichever等词可以引导主语从句, 但no matter who, no matter what 不能. e.g. 1.That he is a famous singer is known to us. (It is known to us that he is a famous singer.) e.g. 2.When he will go to America is not yet fixed. (It is not yet fixed when he will go to America.) 不要使用 The reason … is because that … 句型, 应使用 The reason… is that… 或 This/ it/ that is because…等句型. 例如: 今天早上他迟到的原因是因为路上行人太多. 误: The reason why he was late this morning is because that there was a lot of traffic on the road. 正: The reason why he was late this morning is that there was a lot of traffic on the road. 或:He was late this morning. That was because there was a lot of traffic on the road. whether与if均为“是否”，但下列情况下只用whether ： 1. whether引导主语从句并在句首 Whether he will come is not clear. 2. whether引导表语从句 The question is whether he’ll come. 3. whether从句作介词宾语 I’m not sure about whether we’ll win. 4. 从句后紧跟“or not”或 “to…” Whether you like it or not, you’ll have to do it.  虚拟语气 Be型：即谓语动词用do或should do 想要(desire)、宁愿(prefer)、命令(order, command)、建议(advise, suggest, propose, recommend, urge)、要求(demand, require, request, ask, insist, maintain)中，从句的谓语动词用(should) do。 e.g. He suggested that we (should) take the teacher’s advice. Be型：即谓语动词用do或should do 2) 表情绪、观点的形容词或名词也要用虚拟语气。如：necessary, important, urgent, impossible, essential, desirable, proper, recommendable, advisable, natural, strange, surprising, a pity 等。 句型：It is … that + (should) do 3) 凡是由lest (以免, 免得), in case (以防), for fear that (生怕, 唯恐)引导的状语从句中，用(should) do。 e.g. Keep quiet in case you (should) interrupt him when he is busy. Were型：即谓语动词用过去式 It is (high, about) time (that) + did 该……的时候了 2) wish/ as if/ as though/ if only/ would rather/ would sooner + 从句时，有三种情况，各自把时态推到过去。现在用did (be用were)，过去用had done，将来用过去将来时would do (be用were) 表虚拟的时间 if从句谓语形式 主句谓语形式 现在 过去时/were would/should/could/ might+动词原形 过去 had+过去分词 would/should/could/ might+ have+过去分词 将来