These days we hear a lot about how air pollution is changing temperatures on the earth. New evidence from a mountaintop in China now suggests that pollution can also change the amount of rain and snow that falls in some places.

       Usually, more rain falls in mountainous places than in flat areas upwind from the mountains. That’s because air can hold a lot of water. When wind blows wet air up a mountainside, the air gets colder. This temperature change often forces water to fall as rain or snow.

       In recent years, however, many mountainous areas in the western United States have been getting less rain than normal. Mountains that are downwind from cities have experienced the biggest drops.

       Some scientists have theorized（推理）that pollution drifts （趨勢）from the cities into the mountains, affecting rainfall, but proving this link has been difficult.

       Searching for answers, a team led by a scientist from the Hebrew University went to s mountain in China called Mount Hua, which is 2,060 meters tall and lies about 120 kilometers east of the Chinese city Xi’an. Since 1954, scientists have been collecting details about rainfall, humidity（濕度）, and visibility（能見度）in the area.

       Using this data, the scientists compared rainfall on Mount Hua to rainfall in the nearest city, Huayin, on days with different levels of visibility. When the air was clear and people could see as far as 20 km, the scientists found that 65% more rain fell on the mountain than in the city.

       But when the air was smoggy, allowing only 8 km of visibility through the mist, the mountain received just 20% more rain than the city. The new data supports the theory that pollution affects rainfall.

       Some scientists believe that there are other explanations for the numbers. It’s possible, for example, that natural particles（微粒）in the air, rather than particles produced by pollution, are affecting visibility.

According to the 1st paragraph, air pollution is changing the following EXCEPT ______.

       A．the temperature             B．the amount of rain

C．the habit of eating           D．the amount of snow

According to the passage, what will probably happen when the wet air in the sky gets colder?

       A．It will probably rain or snow  B．It will probably be cloudy.

       C．It will probably wind      D．It will probably become dry.

Why did the team led by a scientist go to Mount Hua?

       A．They wanted to pay a visit to Mount Hua.

       B．They wanted to collect the data for their theory.

       C．They wanted to measure Mount Hua.

       D．They wanted to have a good rest on Mount Hua.

You can most probably read the passage in _______.

       A．a(chǎn) travel guide         

B．a(chǎn) telephone book           

C．a(chǎn) cartoon book       

D．a(chǎn) science book

【小題1】C

【小題2】A

【小題3】B

【小題4】D


解析:

【小題1】從第一段提供的信息可知，air pollution正在改變?nèi)騮emperature、the amount of rain and snow。所以選項(xiàng)Ｃ是正確答案。）

【小題2】從第二段中的句子“When wind blows wet air up a mountainside, the air gets colder. This temperature change often forces water to fall as rain or snow.”可知，A是正確答案。）

【小題3】從第五段提供的信息可知，B是正確答案。）

【小題4】本文講述的是科學(xué)家們的研究結(jié)果，所以最有可能出現(xiàn)在a science book里。）

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語 來源：2012-2013學(xué)年浙江省高三12月月考英語試卷（解析版） 題型：閱讀理解

One day Marilla said, “Anne, your new teacher, Miss Stacy, spoke to me yesterday. She says you must study for the examinations for Queen’s College in two years’ time. Then if you do well, you can study at Queen’s in Charlottetown for a year, and after that you’ll be a teacher!”

“That doesn’t matter, Anne. When Matthew and I adopted you three years ago, we decided to look after you as well as we could. Of course we’ll pay for you to study.”So in the afternoons Anne and some of her friends stayed late at school, and Miss Stacy helped them with the special examination work. Diana didn’t want to go to Queen’s, so she went home early, but Gilbert stayed. He and Anne still never spoke and everybody knew that they were enemies, because they both wanted to be first in the examination. Secretly, Anne was sorry that she and Gilbert weren’t friends, but it was too late now.

For two years, Anne studied hard at school. She enjoyed learning, and Miss Stacy was pleased with her. But she didn’t study all the time. In the evenings and at weekends she visited her friends, or walked through the fields with Diana, or sat talking to Matthew.

“Your Anne is a big girl now. She’s taller than you,” Rachel Lynde told Marilla one day.

“You’re right, Rachel!” said Marilla in surprise.

“And she’s a very good girl now, isn’t she? She doesn’t get into trouble these days. I’m sure she helps you a lot with the housework, Marilla.”

“Yes, I don’t know what I’d do without her,” said Marilla, smiling.

“And look at her! Those beautiful grey eyes, and that red-brown hair! You know, Marilla, I thought you and Matthew made a mistake when you adopted her. But now I see I was wrong. You’ve looked after her very well.”

“Well, thank you, Rachel,” replied Marilla, pleased.

That evening, when Matthew came into the kitchen, he saw that his sister was crying.

“What’s the matter?” he asked, surprised. “You haven’t cried since… well, I can’t remember when.”

“It’s just… well, I was thinking about Anne,” said Marilla. “I’ll…I’ll miss her when she goes away.”

“When she goes to Queen’s, you mean? Yes, but she can come home at weekends, on the train.”

“I’ll still miss her,” said Marilla sadly.”

In June the Avonlea boys and girls had to go to Charlottetown to take their examinations.

“Oh, I do hope that I’ve done well,” Anne told Diana when she arrived back at Green Gables. “The examinations were very difficult. And I’ve got to wait for three weeks before I know! Three weeks! I’ll die!”

Anne wanted to do better than Gilbert. But she also wanted to do well for Matthew and Marilla. That was very important to her.

Diana was the first to hear the news, she ran into the kitchen at Green Gables and shouted, “Look, Anne! It’s in Father’s newspaper! You’re first… with Gilbert… out of all the students on the island! Oh, how wonderful!” Anne took the paper with shaking hands, and saw her name, at the top of the list of two hundred. She could not speak.

“Well, now, I knew it,” said Matthew with a warm smile.

“You’ve done well, I must say, Anne,” said Marilla, who was secretly very pleased.

For the next three weeks Anne and Marilla were very busy. Anne needs new dresses to take to Charlottetown.

1.Which of the following statements is true?

A．To be a teacher was one of Annes’ dreams.

B．Both Anne and Diana studied hard for the special examination.

C．Matthew and Marilla were Anne’s parents.

D．Anne was adopted by Matthew and Marilla.

2.Why are Anne and Gilbert enemies? Because _____________.

A．they were competitors in school            B．they didn’t like each other

C．it wasn’t mentioned in the passage         D．their parents were enemies

3.The paragraph “Oh Marilla! I’d love to be a teacher! But won’t it be very expensive?” should be put between___________.

A．paragraph ③ and ④                    B．paragraph ⑦ and ⑧

C．paragraph ① and ②                    D．paragraph ⑨ and ⑩

4.What will be written in the following paragraph?

A．Anne’s summer holiday.

B．What will Anne talk about her college life with Diana

C．How will Miss Stacy help Anne study.

D．What will Anne do before attending college.

5.From the passage, we can learn that _____________.

A．Miss Stay liked Anne very much

B．when Anne became a teacher, she would have lived in the family for six years

C．Marilla cried because Anne would leave for ever

D．Rachel was a teacher of Anne’s

 

查看答案和解析>>

科目：高中英語 來源：湖南省長沙市同升湖實(shí)驗(yàn)學(xué)校20092010學(xué)年高一下學(xué)期期中考試試題（英語） 題型：填空題

第四部分：寫作

第一節(jié)： ( 共10小題，每小題1分，共10分 )

讀下面一篇文章，根據(jù)文中信息完成所給表格，每空不超過三個(gè)單詞。

People in the United States honor their parents with two special days: Mother’s Day, on the second Sunday in May, and Father’s Day, on the third Sunday in June. These days are set aside to show love and respect for parents. They raise their children and educate them to be responsible citizens. They give love and care. These two days offer a chance to think about the changing roles of mothers and fathers. More mothers now work outside the home. More fathers must help with child-care.

These two special days are celebrated in many different ways. On Mother’s Day people wear carnations. A. red one stands for a living mother. A. white one shows that the mother is dead. Many people attend religious services（宗教儀式）to honor parents. It is also a day when people whose parents are dead visit their graves. On these days, families get together at home and in restaurants. They often have outdoor BBQs for Father’s Day. These are days of fun and good feelings and memories.

Another tradition is to give cards and gifts. Children make them in school. Many people make their own presents. These are valued more than the ones bought in stores. It is not the value of the gift that is important, but it is “the thought that counts”. Greeting card stores, florists, candy makers, bakeries, telephones companies and other stores do a lot of business during these holidays.

71.                 

Types/ categories

●Mother’s Day

●72.               

73.          

to show love and respect for parents.

Common points

offer a chance to think about74.           

75.          

● wearing carnations on Mother’s Day.

●76.                to honor parents.

●77.              

●78.               at home and in restaurant.

●79.                           

80.          

Giving cards and gifts to parents.

 

 

查看答案和解析>>

科目：高中英語 來源：湖南省2009--2010學(xué)年度高一下學(xué)期期中考試試卷（英語） 題型：其他題

第四部分寫作技能 (共兩節(jié)，滿分25分)

第一節(jié)雙向翻譯 (共5小題；每小題2分，滿分10分)

請(qǐng)根據(jù)上下文內(nèi)容，將文中劃線部分譯成漢語或者英語

61.Many facts suggest that children are overweight and the situation is getting worse, according to the doctors. I feel there are a number of reasons for this.

Some people blame the fact that are surrounded by shops selling unhealthy, fatty foods, such as fried chicken and ice cream, at low prices. This has turned out a whole generation of grown-ups who seldom cook a meal for themselves.

Many universities are providing more financial (財(cái)政上的) aid for their students. 62.If there were few of these restaurants, then probably children would buy less take-away food.

There is another argument that blames parents for allowing their children to become overweight. I agree with, because good eating habits begin early in life, long before children start to visit fast food shops.

There is a third reason for this situation. Children these days take very little exercise. They do not walk to school. 63. 他們一回家就是坐在電視機(jī)前或電腦前玩電腦游戲。64. Not only is this an unhealthy pastime(消遣)， it also gives them time to eat more unhealthy food. 65.他們所需要的是走出去并進(jìn)行運(yùn)動(dòng)。 The above are the main reasons for this problem, and therefore we have to encourage young people to be more active, as well as steering them away from fast food shops and bad eating habits.

61. ___________________________________________________________                                                                      

62. ___________________________________________________________                                                                      

63. ___________________________________________________________                                                                      

64. ___________________________________________________________                                                                      

65. ___________________________________________________________                                                                      

 

查看答案和解析>>

科目：高中英語 來源：廣東省09-10學(xué)年高一下學(xué)期期末考試（英語） 題型：其他題

信息匹配：（共5小題，每題2分，滿分10分）

下面是一篇應(yīng)用文及其應(yīng)用場合的信息，請(qǐng)閱讀下列應(yīng)用文和相關(guān)信息，并按照要求匹配信息。并在答題紙上將該選項(xiàng)標(biāo)號(hào)涂黑。選項(xiàng)中有一項(xiàng)是多余的。

首先，請(qǐng)閱讀下列廣告語：

A. “Just do it!” — This slogan (口號(hào)) speaks out to teens. It tells them to do something, but only if they think it’s worth it. And if so, why not do it wearing Nike?

B. “Always Coca-Cola.” — Coke’s slogans change every few years, but this one has enjoyed a lasting popularity because it shows the brand’s spirit. It seems to say “Coke is the only drink there is; there are no other forms of drink.”

C. “Share moments, share life.” — This slogan from Kodak connects photos and beauty. It asks people to remember the happy moments in life by taking photos of them — using Kodak film of course!

D. On hearing the slogan “Make yourself heard”, you will know there is Ericsson product for you to call anyone.

E. There are some public service advertisements (PSAs) that educate people about public service projects, such as Project Hope. Its slogan is “Project Hope — Schooling every child.”

F. One toothpaste ad says “Bright-teeth fights bad breath!” The advertisers want you to read the word “fight” and think that the toothpaste cures bad breath.

請(qǐng)閱讀以下購買者的信息，然后匹配購買者和他/她擬購買產(chǎn)品的廣告語：

Jack passed the entrance exam and was admitted to a famous university. These days, his father is looking for a mobile phone for him so as to keep in touch with each other closely. 

Tom was a senior middle school student. He likes sports very much and plays football every afternoon. But after class this afternoon he has to buy a pair of shoes because his shoes have been worn out.

There’s a party this evening — for Mary’s 15th birthday. Her family are making preparations for it. Her brother’s job is to buy some drink.

Joan doesn’t want to forget the past, especially the happy moments.

Alice is afraid of opening her mouth, because a bad smell will come out, which makes her feel embarrassed when talking with others. So she needs something which can remove the smell no matter how much it is.    

        購買者                       廣告語

     56. Jack                                                         A. Just do it!

     57. Tom                                                         B. Always Coca-Cola.

     58. Mary                                                                 C. Share moments, share life.

     59. Joan                                                         D. Make yourself heard. 

     60. Alice                                                                  E. Project Hope — Schooling every child.

                                                                     F. Bright-teeth fights bad breath!

                  

 

查看答案和解析>>

科目：高中英語 來源：全國通用2010年高考書面表達(dá)強(qiáng)化訓(xùn)練精華篇 題型：單項(xiàng)填空

 

閱讀下面這封中學(xué)生來信（摘自 China Daily 21 Century）.

Dear Editor:

I am a new student at Haining Hongda Senior High School. My home is far from Haining, so I must live at school. This is the first time for me to get away from my parents. I feel very sad. When I left home, I couldn’t help tearing myself away from them. I do not want to be alone at school, and I am a shy girl. I have been crying in bed at night these days. I want to stay at home forever. I miss my parents very much. Could you tell me what to do ?

Your early reply is expected.

Regards

Amy

請(qǐng)根據(jù)以上內(nèi)容，寫一封回信應(yīng)包括；1．鼓勵(lì)A(yù)my堅(jiān)定求學(xué)信心，志存高遠(yuǎn)，四海為家。2．就Amy的目前狀況，提兩到三個(gè)建議。

 

查看答案和解析>>

同步練習(xí)冊(cè)答案