宾语从句三姊妹,that,if/whether,wh-/how展风采。
展风采有三关,引导词、语序、时态在把关。
主从时态要一致,陈述语序永不变。
陈述请你选that,疑问需用if/whether连。
特殊问句作宾从,原来问词不用换。
三关过后莫得意,人称、标点需注意。
留意变脸的if/when,从句的简化记心间。
1、主句是一般现在时,从句根据实际情况使用任何时态。例:
She says (that) she works from Monday to Friday.
她说她从周一至周五上班。(从句是一般现在时)
She says (that) she will leave a message on his desk.
她说她要在他桌子上留个便条。(从句是一般将来时)
2、主句是过去时态,从句须用过去时态的某种形式。例:
He said there were no classes yesterday afternoon.
他说昨天下午没有课。 (从句是一般过去时)
He said (that) he was going to take care of the baby.
他说他会去照看这个婴儿。 (从句是过去将来时)
3、当宾语从句表示的是一个客观真理或者事实时,即使主句是过去时,从句也用一般现在时态。例:
The teacher told us(that) nothing is difficult if we put our hearts into it.
老师告诉我们世上无难事,只怕有心人。
She said(that) her father is twenty-eight years older than her.
她说她父亲比她大二十八岁。
He said that light travels much faster than sound.
他说光比声音传播得快。
注意:当主句的谓语动词是think或believe,宾语从句要表达否定时,要把从句的否定转移到主句上。
I don't think he is going to help you with your English.
我认为他不会帮你学英语的。
这句话不可以翻译成:I think he isn't going to help you with your English.
如果宾语从句有它的补语时,宾语从句用it代替,从句后置。其句型为:主语+谓语+it+补语+宾语从句。
I think it necessary that we learn English grammar.
我认为我们学习英语语法是必要的。