- Unit 1 What's the matter?
- Section A
- Section B
- Unit 2 I’ll help to clean up the city parks.
- Section A
- Section B
- Unit 3 Could you please clean your room?
- Section A
- Section B
- Unit 4 Why don't you talk to your parents?
- Section A
- Section B
- Unit 5 What were you doing when the rainstorm came?
- Section A
- Section B
- Unit 6 An old man tried to move the mountains.
- Section A
- Section B
- Unit 7 What's the highest mountain in the world?
- Section A
- Section B
- Unit 8 Have you read Treasure Island yet?
- Section A
- Section B
- Unit 9 Have you ever been to a museum?
- Section A
- Section B
- Unit 10 I've had this bike for three years.
- Section A
- Section B
《Section B》语法解析
“形容词/副词——enough+to do sth.”结构
【句式结构】
“形容词/副词+enough+to do sth.” 意为 “足够……可以做某事”。在此结构中,当动词不定式结构的逻辑主语与句子的主语不相同时,常用for引出不定式的逻辑主语。
● The question iseasy enough for him to answer.
这个问题足够简单,他能回答上来。
【联想拓展】
该结构的否定形式可以和“too+形容词/副词+to..…”结构或“so+形容词/副词+that.…”结构相互转换。
● The little girl isn't old enough to goto school.
=The little girl istoo young to goto school.
这个小女孩太小,不能去上学。
● The problem isn't easy enoughfor himto work out.
=The problem isso difficult thathe can't work it out.
这个问题太难,以至于他解不出来。
What引导的感叹句
【句式结构】
What引导的感叹句的常见结构有:
① “What+a/an+形容词+可数名词单数(+主语+谓语)!”
② “What+形容词+可数名词复数或不可数名词(+主语+谓语)!”
●What an interesting storyyou tell us!
你给我们讲的这个故事太有趣了!
●What interesting storiesyou tell us!
你给我们讲的这些故事太有趣了!
【联想拓展】
How也可引导感叹句,常见的结构有:
① How+形容词+a/an+可数名词单数(+主语+谓语)!
② How+形容词+可数名词复数或不可数名词(+主语+谓语)!
③ How+形容词或副词(+主语+谓语)!
●What an old buildingthat is!
=How old a buildingthat is!
那栋建筑太旧了!
unless,as soon as和so... that... 引导的状语从句
【句式结构】
① unless作连词,意为“除非;如果不”,引导条件状语从句。在含有unless引导的条件状语从句的主从复合句中,如果主句为一般将来时,从句用一般现在时表将来,即“主将从现”。unless引导的条件状语从句通常可以与if... not 结构互相转换。
● You will miss the busunlessyou hurry up.
你要是不快点就会错过公交车了。
●Unlessyou help us,we will be lost.
除非你帮助我们,否则我们会迷路的。
=If you don't help us,we will be lost.
如果你不帮助我们,我们会迷路。
② as soon as意为“…….就……”,引导时间状语从句,含有该从句的主从复合句表示从句的动作一发生,主句的动作随之发生。该从句经常用一般现在时表将来。
● As soon as she arrive,I'll tell you.
她一到,我就告诉你。
③ so... that... 引导结果状语从句,表示“如此……以至于……”,其中so是副词,常用来修饰形容词或副词,that后接从句。
● Li Lei runssofastthatI can't catch up with him.
李雷跑得太快了,以至于我追不上他。