200] The suit over60 dollars. [译文] 这衣服花了六十多美元. A. had costed B. costed C. is costed D. cost [答案及简析] D cost的过去式及过去分词应该是和原形一致. 查看更多

 

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Air pollution is one of the hottest topics at present because poor air quality is an important factor in both the incidence and cause of respiratory(呼吸道) diseases.

Zhong Nanshan, a deputy to the NPC and a member of the CAE, said recently when the concentration of PM2.5 rises by 10 micrograms per cubic meter, hospitalization may rise by as much as 3.1 percent. Meanwhile, when the concentration of PM2.5 rises from 25 mgs per cubic meter to 200, the average daily death rate may rise to 11 percent.

Zhi Xiuyi, a leading expert in lung cancer treatment and also vice-president of the CATS, said medical authorities used to focus on tobacco control as a primary means of preventing lung cancer. "But in fact, air pollution is no less harmful than smoking and our research team released a report earlier this year showing that the cancer rate in Beijing is closely related to industrialization," he said.

The report, conducted by the Beijing Institute of Cancer Research, shows that the number of cancer patients in China has increased markedly during the past ten years. Chaoyang District, the city's main area of industrialization, has the highest incidence of cancer, almost double that of Yanqing, an area on the outskirts of the city. About four out of 1000 Chaoyang residents have some form of the disease, with lung cancer at the top of the list.

"The risk of having cancer largely depends on the length of exposure and the concentration of noxious gases(有毒气体的浓度)," said Zhi. In response to the doubt whether seven years' exposure to poor air quality will almost result in cancer, Zhi said the time scale was taken from research overseas that suggested the rate of incidence generally peaked in the seventh year of exposure to a heavily polluted environment.

1. What is the passage mainly about?

A. Medical researches on environment.

B. The disadvantages in big cities.

C. The only reason for the lung cancer.

D. Poor air quality contributing to lung cancer.

2.What can you conclude from the 3rd paragraph?

A. Compared with smoking, air pollution is more harmful.

B. Air pollution is as harmful as smoking.

C. It is very important to prevent people from smoking.

D. People realize the importance of keeping healthy.

3.If there were 3,000,000 people in Chaoyang District, how many would have respiratory diseases?

A. 16000?????? B. 12000?????? C. 8000??????? D. 7500

4.What can you infer from the passage?

A. Industrialization has its weakness as well as strengths.

B. The average death rate rises with different ages and places.

C. The air in Beijing is much more polluted than that in the other cities.

D. The more heavily-polluted air you breathe in, the sooner youll have cancer.

 

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D
One day in early March of 1993, Pauline and Tom Nichter and their 11-year-old son Jason, were shopping for a toy in Buena Park, California. Suddenly, Pauline saw a wallet lying on the floor. When she looked inside, she found $200. The family, homeless and without work, knew that could change their lives. But they took the wallet to the nearby police station and turned it in. The wallet was found to have some other pockets, and more money in — over $2000! The police called the man who lost the wallet to pick it up. The man thanked the Nichters and shook their hands, but did not reward them. Luckily for the family, a TV news re­porter filmed the story. People from all over the world heard the story and sent them letters, money and even jobs. A businessman even let them live in his house for free for six months. So far, the family has received over $1, 000, 000. Now the Nichters’ future is bright.
68. The best title of the reading would be________.
A. Money Is Everything              B. From Have-nots to Haves
C. A Kind Businessman             D. A Lost Wallet and the Police
69. Who found out the “major part of the money” in the wallet?
A. The police.             B. Jason.
C. Someone else in the shop. D. The man who lost the wallet.
70. The words “reward them” in the reading means “_______”.
A. speak highly of the Nichters            B. give something to the Nichters
    C. pay the policemen                  D. meet the news reporters
71. Which of the following is true about the Nichters?
A. They got lots of money from a reporter.
B. They made friends with the loser of the money.
C. They worked for a business for half a year.
D. They became known to many people.

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——Will $200 ____ the cost of the damage?

    ——I’m afraid not. I need at least $100 more.

   A.do   B.include   C.cover   D.afford

 

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把下列单词填入每个句子的空白处(注意所填单词的形式变化):

shake  rise  smelly  pond  burst  canal  steam  ruin  injure  destroy  brick  dam  shock  rescue  electricity  disaster  organize  bury  mine  shelter  fresh    speech   judge   honour   prepare 

1 Let me write it down while it is still _________ in my mind.

2 Without __________ our life would be quite different today.

3 He got _________ in the right leg while playing foofball last week.

4 When an earthquake comes people can feel the house _________.

5 At Jerry’s party, Mr Smith delivered an amusing _________.

6 If a nuclear war should break out, it would bring a great _________ to man.

7 Most of the buildings _________ in the earthquake.

8 From yesterday on the temperature began to _________.

9 Never _________ a person only by his clothes.

10 Our class went on an _________ trip last Monday.

11 Stones and _________ are used to build a house.

12 The water in the small _________ froze and kids skated on it.

13 The clothes of those who smoke a lot are often __________.

14 Li Siguang is __________ as the father of geology in China.

15 After getting hanged Saddam Husin _________ in his home town.

16 Three Gorges (峡)________ on the Changjiang River is a great project in the world.

17 Reading the letter, she _________ out crying.

18 The students are busy __________ for the New Year’s Day Evening.

19 Hundreds of workers were killed in the coal _________ accidents last year.

20 He was greatly _________ at the news of his uncle’s death.

21 The Grand ________ was built during the Sui Dynasty(隋朝).

22 It looks like rain. We’d better seek _________ from the rain.

23 Five soliders were sent to _________ those skiers trapped in the snow.

24 _________ can be seen rising from the boiling kettle(水壶).

25 The bad weather _________ our trip.

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If we say the four great inventions (Gunpowder,Compass,Paper and Art of Printing) reflected ancient China’s scientific achievements,then Zhaozhou Stone Bridge perfectly represented one of the greatest contributions to ancient China’s bridge building.Nobody was unfamiliar with the stone bridge full of legends and vivid folk stories.

The ancient Zhaozhou stone bridge started to be built in 590 during the Sui Dynasty (581~618) and established in 608.The pioneer for building the bridge was Li Chun who overcame unimaginable difficulties,undergoing all hardships.The location of the bridge is in Zhao County south,Hebei Province.It lay across the Xiaoshui River,far away from the mountains that provided rocky materials.In ancient times,it was such a busy,deep and wide river that could be used as an important carriage to transport heavy rocks and other materials.As we know,no train,no lifting machine could be used to move granite(花岗岩)blocks to the construction site.As an intelligent stonemason and engineer,Li Chun worked out his plan and design all from his own direct observation and investigation.It took his whole life-time in completing the great historical project inChina.Nowadays it is not only a historical remarkable model of architecture,but also a brilliant Chinese cultural crystallization(结晶) of wisdom.

The entire length of the bridge is 50.82 meters with 10 meters width.The whole stone bridge looks like a big bow,the span of which is 37.02 meters,and its height from the top to the surface of water at a regular position is 7.23 meters.The bridge arch seems to be moving smoothly and flatly.The whole arch consists of 28 big granite blocks connected each other tightly together.On both end sides of the general arch there are 4 smaller arches,2 of which on one side,the other 2 on the other side.The smaller arches could be used to decrease the weight of the bridge and save stone materials,and help flood get through easily,which seems to be much prettier.Such a hard-thinking and careful consideration of the engineering article is really a model of design and layout.The span was much wider than the other stone bridge in ancient times all over China.

Today Zhaozhou Stone Bridge is one of international cultural relics and perfectly protected and preserved by the concerned administration of China.

The best title of this passage is _________.

A.Great engineer in ancient China                      B.Zhaozhou stone bridge

C.Four great inventions                                     D.How to build a bridge

The third paragraph mainly tells us _________.

A.the materials of Zhaozhou bridge                    B.the structure of Zhaozhou bridge

C.the arches of Zhaozhou bridge                        D.the importance of Zhaozhou bridge

The underlined word “carriage” probably refers to _________.

A.cart                          B.transport                   C.channel                     D.resourse

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