1 . Some students don’t know ______ (如何平衡学习与玩耍). (根据汉语提示完成句子)

2 . 【课本改编题】
Economic development is necessary if we want to improve society.... and it is not possible to preserve everything from our past as we move towards the future. Finding and keeping the right ______ and the protection of cultural sites can be a big challenge. （根据课文内容填空）

3 . With strong support from the government and the tireless efforts of the city’s people, a new Tangshan ________________ (在地震的废墟上建起来了). (根据汉语提示完成句子)

4 . The diversity of creatures are greatly ______________ (benefit) to human beings. (所给词的适当形式填空)

5 . The report _____________ (以……为基础) on the research was launched later. (根据汉语提示单词拼写)

6 . The amusement park, which _________ children, _________ at present and will be open next year.

A．intends for; will be built	B．is intended to; is being built
C．is intended for; is being built	D．intends to; will be built

7 . 每天锻炼对我们的身体很有好处。
Doing exercise every day is ____________________ our bodies.

8 . 这是我两年前买来的古董花瓶。
This is an antique vase______________________.

9 . It is the first time that I______ (beg) a stranger for help. (所给词的适当形式填空)

10 . Music gives me strength and enables me ________(be) full of energy. (所给词的适当形式填空)