内容正文:
Unit 5 Save the endangered animals
含有形容词的句型
(时间:40分钟,满分:100分)
1. It’s/was + adj. + to do sth.
It is/was + adj. + to do sth.意为“做某事是……的”,to do sth.为句子的真正的主语,而it为形式主语,形式主语不能用别的词来代替,句中可在形容词后加for sb.,意为“对于某人来说,做某事是……的”。例如:
It’s important for us to learn a foreign language.
对我们来说,学习一门外语是相当重要的。
It’s necessary for us to eat more fruit and vegetables.
对我们来说,多吃蔬菜和水果是必要的。
【拓展】
这个句型中的for sb.有时也可以用of sb. 二者意义有区别:
(1)在It’s + adj. + for sb. to do sth. 中,for sb.意为“对某人来说”,句中的形容词是用来说明to do sth.的,形式主语只能用it。例如:
It’s necessary for the students to do some housework.
对于学生们来说,做些家务是十分必要的。
(2)在It’s + adj. + of sb. to do sth. 中of sb. 意为“某人……”,句中形容词可与逻辑主语sb. 构成系表结构,即形容词是用来说明或形容sb.(某人)的。例如:
It’s very kind of you to help us. 你能帮助我们真是太好了。
2. The baby panda is not old enough to eat bamboo.
(1)enough…to do sth. “有足够的……做某事”。例如:
I don’t have enough time to eat lunch. 我没有足够的时间吃午饭。
(2)…enough to do…可以同too…to…或so…that…结构互相转换。例如:
He isn’t old enough to go to school. = He is too young to go to school.
= He is so young that he can’t go to school. 他太小而不能上学。
【拓展】
(1)enough是形容词,意为“充足的,充分的,足够的”,可作表语或定语,作定语时,可放在名词的前面或后面。例如:
The food is enough for the trip. 用于这次旅行的食物足够了。
I have enough time to watch TV. 我有足够的时间看电视。
(2)enough还可作副词,意为“足够的”,这时enough需放在所修饰的形容词或副词后面。例如:
The young man is strong enough to carry the heavy bag.
那个年轻人足够强壮能搬动重包。
3. The baby panda is too young to eat bamboo.
句型 too+形容词/副词原形+to do something的意思是“太……而不能……”,这个句型可以和not+形容词/副词原形+enough to do或 so+形容词/副词原形+that从句相互转换。
You are too young to go to school.
= You are not old enough to go to school.
= You are so young that you can't go to school.
你太小了,还不能上学。
一、单项选择(本大题共40小题,每小题2.5分,共100分)
1.Her son is ________ young ________ dress himself.
A.so;that B.too;to C.such;that D.enough;to
2.If you work ________, you will make a progress.
A.enough hard B.hard enough C.enough hardly D.hardly enough
3.It’s very kind ________ you ________ other