1 . Calm down. It won’t be long         I tell you the good result.

A．since	B．after
C．when	D．before

2 . 阅读下面材料，在空白处填入适当的内容或括号内单词的正确形式（不多于3个单词）。

The Wandering Earth is a Chinese science fiction movie,     1     is based on the novel of     2     same name by Liu Cixin, and was released on February 5, 2019, the Chinese New Year’s Day.

After learning the sun is dying out ,people all around the world feel     3    (panic),so they build giant planet thrusters(星球推进器)to move the earth out of its orbit and sail     4    to a new star system. The 2500 years’ journey comes with unexpected dangers, but in order to save humanity, a group of young people come out bravely and fight hard for everyone’s    5     (survive)。

We     6     (impress) to see the theme of this film. It doesn’t particularly show somebody’s ability to save our world     7     shows all the human beings are working together,    8    (spare)no effort to save this world.

The Wandering Earth is seen by people     9    the dawn(开端) of Chinese science fiction movies. It means that China’s sci-fi movies have    10    (official) set sail.

3 . Looking back upon my teaching career, I don’t remember ever having been doubted, or challenged in class, ________ rejected.

A．other than	B．let alone
C．rather than	D．more than

4 . Follow your doctor’s advice, ________your illness will get better.

A．then	B．or
C．and	D．but

5 . Feathers fall to the ground slowly, ________ stones fall much faster.

A．but

B．however

C．while

D．yet

6 . 阅读下面短文，在空白处填入 1个适当的单词或括号内单词的正确形式。

The giant panda     1     (love) by people throughout the world. Chinese scientists     2     (recent) had a chance to study a wild female panda with a newborn baby. She was a very     3    (care) mother. For 25days, she never left her baby, not even to find something     4     (eat)! She would not let any other pandas come near. She licked the baby constantly to keep it clean. Any smell might attract natural     5    (enemy) that would try to eat the little comforting panda. The mother held the baby in her front paws much the way a human does.     6     it cried, she rocked it back and forth and gave it little comforting pats. The mother continued to care for the young panda     7     more than two years. By that time, the panda no longer needed     8    (it) mother for food. However, it stayed with her and learned about the ways of the forest. Then, after two and a half years, the mother     9     (drive) the young panda away. It was time for her to have a new baby,     10     it was also time for the young panda to be independent.

7 . We are taught that a business letter should be written in a formal style _____ in a personal one.

A．rather than	B．other than
C．better than	D．less than

8 . It puzzles the scientists _____ some mammals produce their young _____ others lay eggs．

A．that; while	B．what; while
C．that; as	D．what; as

9 . The dog may be a good companion for the old. _______, the need to take it for walks may be a disadvantage.

A．Besides.

B．However

C．Therefore

D．Instead.

10 . At school, some students are active ________ some are shy, yet they can be friends with one another.

A．while

B．although

C．since