The city library is on Green Street. You      take a bus. It’s only about     walk.

        A. need to, five minutes’               B. may, five minutes

        C. don’t have to, five minutes’      D. can, five—minute

Spending two or three hours playing outdoors each day can reduce(减少)a child’s chance of becoming short-sighted（近视）,research shows . It challenges the belif that short-sightedness is caused by computer use , watching TV or reading in weak light .
Australian government researchers believe that sunlight is good for people’s eyes . They compared the vision （视力）and habits of 100 seven-year-old children in China and Australia .In all,30% of the Chinese children were short-sighted .This percentage was ten times higher than Australian children.
Both groups spent a similar amount of time reading, watching TV and playing computer games .However , the Australia children spent an average of two hours a day outdoors ,90 minutes more than the Chinese children.
Professor Ian Morgan said ,“Humans are naturally long-sighted ,but when people begin to go to school and spend little or no time outdoors ,the number of short-sighted peoplegets larger. We are also seeing more and more short-sighted children in cities all around the world –and the main reason may be that city children spend less time outdoors .
Daylight can be hundreds of times brighter than indoor light . But why does playing outside prevent us from becoming short-sighted ? Scientists believe that natural light has a special chemical（化学物质）which stops the eyeball from growing out of shape and prevents people from becoming short-sighted .
So go outdoors .It doesn’t matter if that time is spent having a picnic or playing sports .
根据材料内容选择最佳答案，并将其标号填入题前括号内。
【小题1】What can reduce a child's chance of becoming short-sighted according to the passage ?

A young girl sits at her desk, reviewing her homework for the evening. English: Read three chapters and write a report. Math: Complete 30 problems. Science: Do a worksheet, front and back. French: (A) Study new words for tomorrow’s test. It’s going to be a long night.

 This happens to students in America. Now it’s time to start a homework revolution(变革).

 Do students in the United States receive too much homework? According to the National Education Association, a student should be assigned (布置) no more than 10 minutes per grade level per night. For example, a first grader should only have 10 minutes of homework, a (B)  grader, 20 minutes, and so on. This means that a student in my grade—seventh—should have no more than 70 minutes of work (C) each night. Yet this is often doubled, sometimes even worse!

 It’s no good giving students too much homework. According to research, kids are developing more illness at school, such as stomachaches, headaches and sleep problems than before.

Everybody (D)  that teachers are the ones who assign homework, but they are not the only ones to blame (受责备). “Many teachers are under greater pressure (压力) than ever before,” says Kylene Beers, President of the National Council for teachers of English, “Some of  (E) it comes from parents, some from the wish for high scores on tests.” Teachers who are under pressure feel the need to assign more homework.

 Some people have different ideas, saying that homework prepares kids for doing better in high school, better in college, and (F) 今后找到更好的工作. But too much homework is sapping students’ strength, curiosity（削弱学生的个性和好奇心), and most importantly, their love of learning, is that really what teachers and parents want?

1.写出文中划线部分（A）和（C）的同义词或近义词:                          

2.在文中（B）和（D）的空白处分别填入适当单词:                          

3.文中划线部分（E）指代的是:               

4.将文中划线部分（F）译成汉语:             

5.从文中找出能说明本文主旨大意的中心词:            

-- How far is it from here to your home?

--- It’s about ____________.

A．five minute walk                        B．five minutes’ walk

C．five minute walks                       D．five minutes’ walks

 After playing football about half an hour, the students took _________ rest.

A. a little minute’s                B. a little minutes’

C. a few minute’s                 D. a few minutes’