1 . Firstly, a teenager should not care about his appearance too much. He should concentrate on his lessons. (用not… but…连接句子)

2 . Our government is trying________________.
我们的政府正试图采取措施，防止和控制污染。

3 . 此外，音乐可以有令人欣慰的影响，当我们担心时，帮助我们走出困境。
(一般表达)Moreover, music can have a comforting impact. It can help us step out of difficulty when we’re worried.
(高级表达)　 ________________________   (用and合并升级)

4 . 离开令人难过，但是你必须明白朋友有来有去。(汉译英)

5 . Although he was weak, ______ he tried his best to do the work.

A．but

B．so

C．then

D．yet

6 . 这周我们本该走了，但是戴比病了，所以我们走不了了。(be meant to do sth.) (汉译英)

7 . 单句改错
1. I’ll go and get my tennis bat back before Alice went home.
2. Peter enjoys Jazz very much when his father is interested in Blues.
3. No sooner had I left my house when it began to rain.
4. All people, if they are old or young, rich or poor, have been trying their best to help those in need since the disaster.
5. The newcomer went to the library the other day and searched for no matter what he could find about Mark Twain.

8 . so并列句
我知道你对乒乓球很感兴趣，所以我真的希望你能加入我们的校队。(汉译英)

9 . Sugar can add a pleasant smell and bring happiness to you, ______ it is the salt that is crucial to the flavor. (用适当的词填空)

10 . Today, as people walk on the vast land of Sanjiangyuan, looking at the expansive mountains, glaciers and lakes,______ catching sight of wild animals and birds, they cannot help but be impressed by the beauty of nature. (用适当的词填空)