If you have a bottle of water recycled from urine (尿), would you drink it? Astronauts at the ISS may soon do so.

   NASA (美国航空航天局) said it would use a high－tech machine to recycle waste water at the ISS. The machine will recycle water for washing hands, shower water, water for brushing teeth and even urine to make drinking water. It will save millions of dollars each year.

   At present, each ISS astronaut uses about 4.4 liters (升) of water every day. It costs about 24 million dollars a year to send water up to the ISS. A liter of water costs about $ 11, 000.

   The machine will be sent to the ISS later. NASA hopes it will recycle about 93% of all the water used on the station.

   Will the water be clean? Different chemicals will be put in the wastewater. The water will be heated to 130℃to kill bacteria (细菌). Scientists say that the recycled water is thousands of times better than the water from a city tap.

根据材料内容,选择最佳答案。

Will books be replaced by the Internet?

   Every morning, my father buys a newspaper on his way to work. Every day, I open my books in class and start my lessons. Every evening, my mother looks through magazines at home. And every night, I look at the photos of Kobe Bryant and Yao Ming on my bedroom wall before I go to sleep.  (1)   

   Paper was first created about 2,000 years ago in China. After its invention, people started to write on paper to make books. In those days, books were only produced one at a time by hand.  (2)   So, few people had the chance to learn to read. 

   Printing was invented in China during the Sui and Tang Dynasties (朝代). Later, developments in printing made it possible to produce books more quickly and cheaply. A trade in books resulted, and more people learned to read.   (3)    In a way, we can compare the invention of paper and printing to the introduction of the Internet in the twentieth century. 

     (4)   A lot of information can be stored (存储) in different forms on the Internet than in books. And the machines that we use to read it are now small and light, often smaller and lighter than a single book, so they are easy to carry. 

   Computers and the Internet are used in classrooms now, and newspapers and magazines are already read online.   (5)   Will books be replaced by the Internet? Let’s wait and see.

根据短文内容，从方框中选出五个句子填入文中空缺处，使短文内容完整正确。

You can see Big Ben which is in central London, Britain in the picture. It is so famous that everybody who comes to London wants to visit it. It's said that Big Ben is going to be given a facelift(整修). ____  (1)  ____ And the project will cost 29 million pounds. It means that the clock will be turned off when the work is being carried out. ____  (2)  ____.

   The last repair work on Big Ben was in 1983－1985, and both the clock and its 96－meter tower need attention now. The 160－year－old clock tower will be partly covered by scaffolding(脚手架) for three years. ____  (3)  ____

   The project will paint the clock in their original(最初的) colors. ____  (4)  ____ Members of the project team are now studying the old paint that was used to decorate each clock face. And once a clear picture of the early colors has been built up, the facelift of the tower will be carried out soon. ___（5）____ "The clock will be silent for a long time, and bell only for important events," an officer said.

根据材料内容,从下面五个选项中选出能填入文中空缺处的最佳选项,使文章意思通顺,内容完整。

After a day’s hard work, an old man was going home late one night with his horse and cart. When he was near his house, the light on the cart suddenly went out.   (1)   He was near his home, and so he went along the road without a light. When a policeman saw this, he stopped the old carter.

“Where’s your light?”asked the policeman.“No one may take a cart along a road at night without a light. You know that. You’ve broken the law now.” “I had a light,”said the old man,“  (2)  ” “I don’t believe what you said,”said the policeman.  (3)   “What’s your name and where do you live?”he asked.

  “Please don’t take my name,”said the old man.“My house is just there. You can see it from here.  (4)   I haven’t come far without a light.” “You came all the way without a light. What’s your name?” 

The carter quickly took the policeman's hand and put it down on the top of the light. The light was still hot, and burnt the policeman’s hand. The policeman jumped  (5)  “Now, what do you think?”said the carter.“Did I come all the way without a light?”

Friendship is the feeling or relationship that friends have. A real friend is one who stands by his friend in his need. Friendship grows on mutual ( 相互的) trust and help. True friends help each other and warn each other against going towards the wrong path.
Everyone lives in a society. (76)________ A friend is a part of one's life. When one feels alone and finds it difficult to deal with a situation on his own, he can ask his friends for help.
Generally, people of similar tastes or hobbies become friends. It is easy to make friends. (77)_______ One cannot enjoy true and lasting friendship if he does not value it. So one should have some spare time for his friend.
(78)________ He always protects his friend's interest. If his friend has some weaknesses, he doesn't look down on him but tries to help him. He may make his friend angry sometimes, but he does that for a good reason.
Friendship has no boundaries ( 界限) of age, time, places or relations. (79)__________ But even a brother, a sister, a husband, a father or a mother can become a good friend.
(80)__________ It will influence and even destroy (破坏) friendship. Friends should stand by each other in the face of difficulties.

     Look at the nice photo! Do you know the girl in a hat with a flower on it? Her name is Mary. Mary is my new pen pal (笔友)。 She is a nice French girl.     76      I like her very much. I can’t speak French, and  Mary can’t speak Chinese.      77     So we write to each other in English. We are both 13 years old.     78        But Mary likes history best. We both like playing basketball. She lives with her parents. She is the only child in the family. She likes going to the movies on weekends.     79       I like Beijing Opera best. Her father will work in China.       80     .  And I hope to see her son.