1 . ____________, and all the problems could be settled.

A．If you make more efforts	B．Making more efforts
C．A bit more effort	D．To have made more efforts

2 . It is/was...that/who...强调句型
________________(正是在这样的地方) we cannot help but be humbled, come to understand our limitations as human beings, and know that our duty is to protect them for future generations. (根据汉语提示完成句子)

4 . 强调句
________________________________(正是通过我们对太空的研究)we have confirmed that the Earth is round and that it orbits the Sun.  (根据汉语提示完成句子)

5 . as引导让步状语从句的倒装结构
________________________________(虽然地球的景色十分壮观), spacewalking is not as exciting as you might think. (根据汉语提示完成句子)

6 . as if 引导的状语从句，省略了主语和be动词
Its walls were fresh ________________________________.
它的墙壁焕然一新，仿佛昨天粉刷过一样。

7 . These bad habits, if left unchecked, could lead to more serious ones when they become adults. （英译汉）
_______________________________________________________________________________

8 . It is this novel ________________ they talked about last week. (用适当的词填空)

9 . If ________(leave) alone outside, dogs and cats can be very smart in their search for warm shelter. （所给词的适当形式填空）

10 . It was then ________ I realised mom’s seat was empty!

A．who

B．where

C．that

D．which