1．根据你所听到的对话，选出正确答案。
1）A．Potatoes are more nutritious than eggs．
B．The eggs are next to the potatoes．
C．The second course will be potatoes and eggs．
D．Most Health Food stores sell potatoes and eggs．
2）A．Customer and store owner．
B．Mechanic and customer．
C．Manager and secretary．
D．Car dealer and customer．
3）A．At1：30．B．At2：00． C．At1：45．D．At3：40．
4）A．Look for another seat．
B．Repeat the question．
C．Remain standing．
D．Sit down．
5）A．She would like a cup of tea．
B．She would like a cup of coffee．
C．She doesn't understand the man's words．
D．She wants both coffee and tea．
6）A．The newspaper．B．The rain．
C．The man's health．D．The weather．
7）A．＄2．B．＄4．C．＄3．D．＄6．
8）A．In a laundry．B．In a library．
C．In an elevator．
D．In a bakery．
9）A．He drank too much．
B．He had a cold．
C．He was tired．D．He had a fight．
10）A．He should call to check his score．
B．He should take the test again．
C．He should wait for the score．
D．He should be worried．
2．听短文，补全文中所缺词语。
The sea is salty because it contains a amount of dissolved ．If you could all the salt from the world's oceans and spread it over the earth's land surface，you'd get a like layer about 500 feet thick，according to a fact-packed booklet ．“Why is the Ocean Salty？” written by Herbert Suenson of the U．S．Geological Survey．In the Earth's earlier time the atmosphere contained gases released from inside the globe via volcanoes．Some of these gases dissolved in the ocean，making it salty ．Since then many years ofby chemical action and rainfall have increased the salt level by converting mountain rock and flat soil and everything in between in dissolved salts．
3．听短文，完成下面的表格。
| How many bats live under the bridge? | |
| The name of the bridge: | |
| Number of the people in Texas city: | |
| Winter home of the freetail bat(松尾蝠)： | |
| The bats search for insects in: |
