1 . 如果你用心去观察，你将会惊讶地发现一些有趣的东西。(汉译英)
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2 . This pen is a birthday present that Father gave me. I hate to have to part with it___________ it is old.

A．even though

B．as soon as

C．as long as

D．now that

3 . Henry对音乐非常感兴趣，他在高中时就开始创作原创作品(original compositions)。(汉译英)

4 . Batteries are not allowed by airlines in checked luggage, as they might explode due to overheating. (英译汉)

5 . _____ you are a big boy, you should not do things like a baby.

A．As if	B．Now that
C．Before	D．Though

6 . He has read a lot of books on arts        he wants to be an artist in the future.

A．because

B．though

C．once

D．unless

7 . 如果学生学习倦怠，可以短暂休息，然后继续学习。
______ case the students get bored of studying, they can choose to take a short leave before going back.