12、——Look! What is _______ over there?

——Oh，dear! A lady was knock down by a  motorcycle．Let’s call ___ at once．

A．happened，122  B．happening，120  C．happened，110  D．happening，119

11、——What did he say?

——He asked __________．

A．what wrong with us            B．what was wrong with us

C．who will give us a lecture    D．what did happen to him

10、By the time they got outside，the taxi ________．

A．has left    B．has been away     C．had left    D．had been left

9、——What a nice MP3! Is it yours?

——0f course. I _________ 300 yuan on it. 

A．cost    B．spent    C．paid   D．take

8、Advertisements give us _______ about products，such as their prices and uses．

A．information    B．news    C．words     D．pictures

7、——Tom，your books should be in right order．

——OK．I’11 ________ them _____ right now．

A．put, down    B．put，away    C．put，up  D．put，on

6、——I didn’t know this was a one-way street，officer．

—— ______________．

A．That’s all right．        B．I don’t believe you  

C．How dare you say that      D．Sorry，but that’s no excuse．

5、根据句意和首字母提示完成单词。   

1．The world’s d___ salt lake is the Caspian Sea．

2．The ______ of the world is about 6，000，000，000．

3．Are there any ________ between this book and that one?

4．My father has been much better since he g___ up smoking．

5．It's hard for us to make a d_____ ．

4、根据所给汉语，填入单词。

1．The actress walked on to the stage with great ______．(自信)

2．The Spring  Festival is a _____ festival in China．(传统的)

3．Luckily，he has passed the entrance_______．(考试)

4．Many students look forward to ________．(毕业)

5．Be careful while going out at night．Don’t talk with _____．(陌生人)

3、The world is nor only hungry，but it is also t 1  for water．This may seem strange to you，since nearly 70％of the earth is c 2 with water：But about 97％of this huge amount is sea water，or salt water．Man can only drink and use the other 3％——the fresh water from rivers，lakes，

underground，and other sources. Even w 3 ，some of it has been p 4 ．Now our need for water is i 5  -almost day by day．We must take steps to solve this prob1em，or we can’t a 6 a worldwide water shortage later on．

We all have to learn how to  s 7  water．One of the first steps is to develop ways of reusing it．

Today in most large cities，water is used only o 8  and then sent out into a sewer system(下水道)．But it is possible to get used water to a purifying(净化)factory．There it can be purified so t9   it can be used again．

    The world’s water shortage is a big p10 for humans．We must save every drop of water and keep our rivers and lakes clean．