Singapore is not just a clean and tidy city in the world, it's also the greenest. There are (A) 三个原因why it is so.

Say "No" to waste

Singaporeans do not waste a single drop of water. They recycle water and save( B ) almost all rainfall. The water can be used for industry （工业） and even drinking.

Many "green" buildings

The Duke-NUS Graduate Medical School is one of the great examples of (C) pretty green design. It uses sustain-able design elements (可持续发展的设计元素) in its school building. ( D ) Singapore has many green buildings like this.

Get them while they're young

The Green Singapore 2050 (GS2050) is a community platform (社区平台) for young people to express their great worries about environmental problems, and think of solutions for(E) them. Why 2050'？It's because these young people will be the ones to run the country in 2050, and hopefully they will solve the world's problems.

1.将文中划线部分(A)译成英语。________________________

2.写出文中划线部分(B)和(C)的同义词或近义词。______________________

3.将文中划线部分(D)改写为There _______ many green buildings like this ______ Singapore.

4.文中划线部分(E)指代的是：__________________

5.从文中找出能说明本文主旨大意的中心词。_________________

1 

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:            

阅读短文，然后根据要求完成任务。

　  Do you carry too much on the way to school or home? Don’t worry．Try e-readers (电子阅读器) and say goodbye to your heavy schoolbag．

    An e-reader has the memory space to hold hundreds of books．So people want to (A)扔掉沉书包 and read with small, light e-readers．For example，Cushing Academy，a high school in Massachusetts，USA，replaced (替换) most of the 20，000 books in (B) its library last summer．Teachers and students will use e-readers instead．

    Most e-readers are thin and weigh less than 500g．They can download (下载) an e-book in 60 seconds．“It's (C) so easy．You can have a lot of books right at your fingers!” said Meghan Chensusky．

     Chinese schoolchildren are also trying e-readers．At the Shanghai World Expo (世博会)，an e-schoolbag is now on show．It is a special e-reader．Students can use it to download textbooks from the school servers (服务器)．(D)It can also send and receive homework．Some Schools in Beijing and Shanghai have tried this e-schoolbag for a few years．“It’s excellent．I (E)don't have to carry a heaw schoolbag anymore，”said Xiao Qi，15，Beijing．

     New e-readers are not just for reading．They have Wi-Fi and multimedia (无线电视和多媒体)．Parents worry that these may hurt their children's study habits． “I think Wi-Fi is not necessary for kids，”said Zeng Wenwen，43， Beijing．

1.将文中划线部分(A)译成英语:________________

2.文中划线部分(B)指代的是:________________

3.写出文中划线部分(C)和(E)的同义词或近义词：________ ________

4.将文中划线部分(D)改写为：Homework can also__________  _________and received through it．

5.从文中找出两个修饰或描写e-reader的形容词：________ ________