10．Which of the following is true?

    A．Hungry is the only problem in our world．

    B．Water shortage is the only problem in our world．

    C．Scientists don't want to spend money solving the water problem．

    D．Scientists have been working hard and have made much progress in solving water problem．

（C）

    News l

    Have you ever thought of being able to fly around the world in a few hours though it is about 40，000 kilometers? One day，maybe you can．Last Saturday，the American X-43A airplane made its first flight．It reached a speed of 8，000 kilometers an hour．This makes it the fastest plane in the world．The X―43 A is only three to four meters long，but it's very heavy：it weighs（重）1，270 kilograms．

    News 2

    Have you ever got angry at books that are full of mistakes? Don't worry，things will get better soon．Last week，China started checking textbooks，dictionaries and children，s books all over the country．The government（政府）said the results of the checking would come out at the end of June．

    News 3

9．What is the writer mainly talking about in this passage?

A．The ways of getting fresh water．

    B．How to use fresh water in our daily life．

    C．All people in the world should save water．

    D．Different ways of making water in different places．

8．The word “shortage” in this passage means‘                 ’．

    A．being enough                                          B．being short of

    C．being short for                                        D．being less

7．From this passage we know fresh water                ．

    A．only comes from the rain                                B．can be used in many ways

    C．C an be found in many factories                  D．is needed by more and more people

6．Where does the flesh water people need come from?

    A．Sea water                                               B．Rivers and lakes

    C．Underground                                             D．Both B and C

5．Memory is               that we keep in our mind and carry about．

    A．the best diary                                          B．the best camera

    C．a great help                                               D．a beautiful picture

（B）

    The world is not only hungry，it will also be thirsty for water．About 97％of water on the earth is sea water．or salt water．Man can only drink or use the other 3％of the fresh water（淡水）which comes from rivers，lakes and underground．  On the other hand，because the number of people in the world is becoming larger and larger，more and more flesh water is needed．So water shortage becomes a big problem．

    How can we work out this problem? Scientists have found some ways to turn salt water into fresh water．One important way is to boil（使达到沸点）sea water with high heat until vapor（蒸汽）rises，leaving the salt． 1n this way，a lot of fresh water can be made quickly．

But heating is not the only way to get flesh water．Other ways aye tried，for example，digging deep wells，keeping rain water and preventing rivers from being polluted．

    Which wav is the best? To get the most flesh water for the least money is the best．

4．                can take photos of what can be seen，felt，heard，smelt and tasted．

    A．A camera             B．Memory              C．A diary                  D．A man’s mind

3．The children who live abroad with their parents can learn two languages more easily because                  ．

    A．they are very clever

    B．they have good teachers

    C．they have more chalices to use these languages

    D．they have a better life

2．If you have a good                 ，you'll have less difficulty in learning something

    A．teacher                B．camera                C．memory                 D．family

1．We usually begin to learn our own language by                   it

A．speaking              B．hearing                C．saying                    D．teaching