1 . He is fond of music，________________，pop songs and American country music.
他喜欢音乐,包括民歌、流行歌曲和美国乡村音乐。

2 . Floating ice around Iceland was becoming a threat ________ navigation. （用适当的单词填空）

3 . There is little doubt that you will be able to judge truth and error if you have confidence ______ yourself. （用适当的单词填空）

4 . Learning another language is like stepping out of a door, ______I can look back and see more clearly my own language.

A．By which

B．through which

C．which

D．on which

5 . Scientists are convinced______the positive effect of laughter on physical and mental health. (用适当的词填空)

6 .        the reality，concrete instructions of this machine should be made to        larger speeds and feeds.

A．Concerning；cater for

B．Concerning；allow for

C．Considering；apply for

D．Considering；allow for

7 . Let’s learn to use the problem we are facing      a stepping-stone to future success.

A．to

B．for

C．as

D．by

8 . A serious study of physics is impossible _______ some knowledge of mathematics．

A．against	B．before
C．beyond	D．without

9 . （语法填空）This trend, which was started by the medical community（医学界）________ a method of fighting heart disease, has had some unintended side effects (effect) such as overweight and heart disease — the very thing the medical community was trying to fight.

10 . （语法填空）After school she plans to take a year off to model full-time before going to university to get a degree ______ engineering or architecture.