1 . _______ basic first­aid techniques will help you react quickly to emergencies.

A．To know

B．known

C．Knowing

D．Having known

2 . Why do we still sunbathe when we know the dangers of e______ our skin to the sun?

3 . People find all kinds of excuses for ___________(遗弃) an animal.

4 . To most of us, happiness is being s_________ by family and friends. （根据首字母单词拼写）

5 . My tutor told me I couldn’t write what other people had said without a_________(答谢) them. (根据中英文提示单词拼写)

7 . ________(understand) your own needs and styles of communication is as important as learning to convey your affection and emotions（所给词的适当形式填空）

8 . He has always insisted on his ______ Dr. Turner instead of Mr. Turner.

A．been called

B．called

C．having called

D．being called

9 . It is no good completely ________ (ban) students________ surfing the Internet. (所给词的适当形式填空)

10 . ________ (learn) to think critically is an important skill today’s children will need for the future. (所给词的适当形式填空)