Not many people have seen (看见) icebergs. Sailors (船员) sometimes see them but they (1)   

     to keep away from them. We call the top and bottom (底部) of the world the North and South Poles (极点). Here there is ice over the sea and the (2)        . The ice is often thousands of meters thick(厚). The ice often moves slowly down (3)           the sea. Then big pieces of ice break off and float (漂浮) on the sea . We (4)         these big pieces Office "icebergs".

    Most of an iceberg is under the water. Ice is only a little (5)        than water. The top of an iceberg may not be near (6)         a ship, (7)       the ship hits the iceberg below the water. Then the ship (8)        . Sometimes the water becomes (9)      . The bottom of the iceberg becomes smaller and smaller. Then it turns right over. Sometimes it hits a ship. Icebergs are often very beautiful but they are also (10)           .

根据对话语境，在每个空白处填入一个适当的单词或句子，使对话完整通顺。

A: Hi, Tom. You were not here yesterday afternoon.                  ?

B: I had a fever.

A:                     . How are you feeling now ?

B:                     . The fever is gone, but I still cough and I feel weak.

A:                           ?

B: Yes, I went to the doctor's yesterday afternoon. The doctor gave me some medicine and asked me to lie down and have a good rest.

A: Why don't you stay at home today?

B: Because I'm afraid I'll miss too many lessons and I'll be left behind.

A:               . Take care of yourself.  I'll help you with your lessons.

B: Thank you.

假如你在互联网上结识了一位网友，请根据下列表格所提供的信息，用英语介绍一下你的网友。

要求：文章包括下列表格提供的信息，可根据内容适当发挥，80词左右。

I ________be afraid of the dark.

A. use to          B. used to           C. are used to        D. are used for

The volleyball may ________Carla's. She loves volleyball.

A. be        B. belong          C. belong to          D. have

The story books ________are on my desk are very interesting.

A. that          B. /          C. what            D. who

Mary is ________.She likes to meet new people.

A. shy              B. serious           C. quiet.          D. out-going

The music is great because you can dance________.

A. to         B. to it         C. whit it          D. follow it

Some of her photos ________ this exhibition.

A. is on display in                    B. is on display on

C. are on display in                    D. was on display in