OFFICE系列软件中，最近使用过的文档在（）菜单显示。

句型转换。

1. My father will get back tonight and I can get my book back from him. (同义句)

    My father will ______ tonight and he can ______ me my book.

2. In the early morning we reached Beijing. (同义句)

    In the early morning we ______ ______ Beijing.

3. He rides his bike to the bus station. (同义句)

    He goes to the bus station ______ his ______.

4. I live 10 miles from school. (就画线部分提问)

     ______ ______ do you live from school?

5. He goes to school by bus. (就画线部分提问)

    ______ ______ he go to school?

Have you ever wondered why birds sing? Maybe you thought that they were just happy. After all ,you probably sing or whistle when you are happy.

Some scientists believe that birds do sing some of the time just because they are happy. However ,they sing most of the time for a very different reason .Their singing is actually a warning to other birds to stay out of their territory.

Do you know what a “territory” is? A territory is an area that an animal ,usually the male, claims（声称）as its own .Only he and his family are welcome there .No other families of the same species（物种）are welcome. Your yard and house are your territory where only your family and friends are welcome. If a stranger should enter your territory and threaten you, you might shout. Probably this would be enough to frighten him away.

If so, you have actually scared the stranger away without having to fight him .A bird does the same thing. But he expects an outsider almost any time ,especially at nesting（筑巢）season. So he is screaming all the time, whether he can see an outsider or not .This screaming is what we call a bird’s song, and it is usually enough to keep an outsider away.

Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs.

You can see that birds have a language all their own. Most of it has to do with attracting mates and setting up territories.

56．Some scientists believe that most of the time birds’ singing is actually       .

A．an expression of happiness                   B．a way of warning

C．an expression of anger                         D．a way of greeting

57．What is a bird’s “territory”?

A．A place where families of other species are not accepted.

B．A place where a bird may shout at the top of its voice.

C．An area for which birds fight against each other.

D．An area which a bird considers to be its own.

58．Why do birds keep on singing at nesting season?

A．Because they want to invite more friends.

B．Because their singing helps frighten outsiders away.

C．Because they want to find outsiders around.

D．Because their singing helps get rid of their fears.

59．How does the writer explain birds’ singing?

A．By comparing birds with human beings.

B．By reporting experiment results.

C．By describing birds’ daily life.

D．By telling a bird’s story.

填写实验报告：

话音记录器控制盒上的区域麦克风的作用是（）.

A.记录随机工程师区域的话音

B.记录观察员区域的话音

C.记录正、副驾驶之间的对话

D.记录驾驶舱内的环境声音