1 . When our vehicle was quietly running over the sand and small stones in the Sahara, it wasn’t long _________ we were surrounded by enormous sand dunes towering above us on all sides. (用适当的词填空)

2 . 中秋节的满月被认为是代表着家庭的团聚，家人们即使住得很远也要回来。（汉译英）

3 . 令人赞叹的是，莫奈(Monet)每次端详睡莲池这处简单的风景，都以独特的方式让它的美跃然于画布之上。（汉译英）

4 . 不能保证这个方法会奏效，因为此前没有人进行过类似的尝试。(同位语从句)(汉译英)

5 . We were about to leave ________ one of our friends called and said he would visit us soon. (用适当的词填空）

6 . ________we’ve made the promise, let’s keep to it and not give up easily.

A．Whether

B．Since

C．Though

D．Unless

7 . Laughing helps your body stay healthy and can even help you fight pain. Maybe this explains the long lives of men like Bob Hope and Gee Burns.________ the reason, research shows that in the end, the English saying,”laughter is the best medicine” may be true after all. (用适当的词填空)

8 . 只有当我们采取各种措施来拯救濒临灭绝的动植物我们才能解决这个吓人的问题。(only倒装，extinction)（汉译英）

9 . The journey was full of challenges: it took longer than ________ (expect), they faced a ________ (缺乏) of food, and one of the ships was ________ (漏水) badly, which put everyone on this ship in grave danger.(所给词的适当形式填空)(根据汉语提示单词拼写)

10 . I was wondering whether to participate________ my teacher came by , telling me that it was a good chance to display my talent. （用适当的词填空）