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You can not see any object unless light from that object gets into your eyes. Some of the things you see give off light of their own. The sun, the stars, a lighted lamp are examples that can be seen by their own light. Such things are luminous. Most of the things you see are not giving off light of their own. They are simply reflecting light that falls on them from the sun or some other luminous bodies. The moon, for example, does not give off any light of its own. It is non-luminous. You see it because sunlight falls on it and some of it reflects in our direction. So moon light is only second hand sunlight.
When you look at a book, it sends to your eyes some of the light which falls on it, and you see the book. If light could be kept out from where you are so that there would be no light for the book to reflect, then you could not see the book even with your eyes wide open.
Light travels so fast that the time in which it travels from the book you are reading to your eyes is so short as if there were no time at all. Light reaches us from the moon, which is about 380 000 kilometers away, in only a little more than a second.
51. You can see the book because_______.
A. your eyes are close to it B. it reflects some of the sunlight
C. it has light of its own D. your eyesight can get to it
52. The underlined word “luminous” means_______.
A. visible B. all colors C. giving off light D. sunlight
53. Light traces about _________ kilometers per second.
A. 380 000 B. 300 000 C. 400 000 D. 190 000
54. Which of the following is true?
A. The moment you open your eyes the light from the book travels to your eyes.
B. Light from the book is much shorter than that from the moon.
C. All the things you can see give off light.
D. Light travels so fast that there is no time for you to read.
55. What is the main idea of the passage?
A. You can see and read a book because you open your eyes.
B. Some objects are luminous, some not.
C. You can see things because of light.
D. Light travels very fast so you cannot notice it.
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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．
【小题1】将文中划线部分(A)译成英语:________________
【小题2】文中划线部分(B)指代的是:________________
【小题3】写出文中划线部分(C)和(E)的同义词或近义词：________ ________
【小题4】将文中划线部分(D)改写为：Homework can also__________ _________and received through it．
【小题5】从文中找出两个修饰或描写e-reader的形容词：________ ________
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：________ ________
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先阅读A、B两篇短文，然后根据题目要求及所给语境完成下列四项任务。
A
Regent's Park is the largest grass area for sports in London．It's also the second largest park in the city．It opens at 5∶00 a.m.all the year around, but the closing time 1 , depending on the season．Regent's Park has a lake, several public gardens, some sports grounds and three 1 playgrounds．Queen Mary's Garden inside it is famous for 3 of beautiful roses．In the north of Regent's Park is the London Zoo．It's 4 than any other zoo in the world．People can play many sports in Regent's Park, including tennis and 5 ．People can go boating on the main lake and enjoy a picnic in the park, too．There will be sports events of the London Olympic Games in Regent's Park in 2012．
B
Both the British and Americans speak English．However, there are several differences between American English and British English．For example, the words they use in daily life are not the same．The British call the first floor of a building the ground floor．The floor above the ground floor is the first floor, which Americans call the second floor．Once you go to Britain and America, you may notice other differences．The British usually hide their feelings．They don't often start a talk with strangers．On the train the British often spend their time reading newspapers or books．But Americans are more active and easier to talk with．
任务1：用方框中所给的适当形式填空，是文章通顺，连贯，合理。(每空一词，每词限用一次)
1．________ 2．________ 3．________ 4．________ 5．________
任务2：根据英文释义及首字母提示，拼写单词。
6．a________ at or to a higher point
7．h________ to stop somebody or something from being seen．
任务3：同义句转换，每空一词。
However, there are several differences between American English and British English．
However, American English is 8．________ 9．________ British English in several ways．
任务4：根据短文内容简答问题。
What do the British often spend their time reading on the train?
10．________________．
根据汉语提示完成对话
1.1.A:那是你妹妹吗？?
不是的。?
A: Is （1） your sister??
B: No, it（2） .
2.A.她是玛丽吗？?
B:是的。?
A:?(1) ?Mary??
B: Yes,(2) ?.?
3.A.他是汤姆吗？?
B:不是的。?
A:?(1) ?Tom??
B: No,?(2) ?.
4.A:这是你的爸爸吗？?
B:是的，是我爸爸。?
A: Is this your?(1) ???
B: Yes, this is my?(2) ?.?
5.A:那是你的哥哥吗？?
B:不，他是我的表哥。?
A: Is that your?(1) ???
B: No, that is my?(2) ?.
6.A:他们是你的祖父母吗？?
B:是的，他们是我的爷爷和奶奶。?
A: Are they your?(1) ???
B: Yes, they are my ?(2) ?and?（3） .?
7.A:她是你的阿姨吗？?
B:是的，她是我的阿姨。?
A :Is she your? ???
B: Yes, she is.
8.A:这些是你的哥哥吗？?
B:不，他们是我的朋友。?
A: Are these your?(1) ???
B: No, they aren’t. They are my?(2) ?.?
9.A:这是安娜吗？?
B:是的。?
A: Is?(1) Anna??
B: Yes, she?(2) ?.??
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