_____ send for a doctor is still a question.

A. Who that we will 　 B. That we should

C. Whom we should 　 D. Who should we

For Americans, a mosquito bite is an itchy bother. But for many in Africa, a tiny bite can be deadly. One million people die each year of malaria, a disease spread by infected mosquitoes. Most of these people live in Africa, and are under age 5.

Malaria can be prevented and treated. However, many African nations don't have the funds to fight it. Nothing but Nets (NBN) hopes to change that. The United Nations Foundation created the campaign in 2006. The aim is to prevent malaria by covering sleeping areas with nets. Hanging bed nets treated with insecticide(杀虫剂) is the simplest way to stop mosquitoes from biting at night. The chemicals last four to five years. For $10, anyone can send a net to Africa and help save a life.

So far, NBN has raised $19 million and delivered 700,000 nets to seven countries. Families are taught how to use the nets. Kids also get vaccines (疫苗)and vitamins. "Women line up for miles to get the medicine for their kids," says NBN director Elizabeth McKee Gore. "They understand the importance."

So do kids in this country. "They get so excited thinking of ways to raise money," says NBN spokesperson and basketball star Ruth Riley.

NBN's biggest fund-raiser is Katherine Commale, 7. She's been spreading the information about bed nets for the past two years. To show how they work, she and her brother made a video. "We teach that bed nets can save lives," she said.

Katherine has raised $42,000 for NBN. "She just wants those who need a net to have one," says her mom, Lynda. "It's pretty simple to her." To find out how you can help, visit nothingbutnets.net.

We know from the passage that NBN is in fact _________.

   A. a deadly disease                B. an organization

   C. a piece of equipment            D. a game

The purpose of the passage is most probably ___________.

   A. to list the sufferings of the African people

   B. to introduce new ways to avoid mosquito bites

   C. to call on people to offer their help to Africans

   D. to tell people how to buy nets in Africa

By saying “So do kids in this country” in Paragraph 4,the author means that kids in this country also ___________.

   A. know the importance of the bed nets

   B. know how to protect themselves

   C. lack nets to protect themselves

   D. suffer from malaria

What do we know about Katherine from the passage?

   A. She set up the website nothingbutnets.net.

   B. She is the youngest money-raiser for NBN.

   C. She raised money by making and selling videos.

   D. She started working for NBN at the age of 5.

For more than twenty years scientists have been searching for signs of life on other planets. Most of these searches have been done over the radio. The hope is that someone in outer space may be trying to get in touch with us. Scientists also have sent radio and television messages on spaceships traveling through space, on the chance that someone may be receptive to such messages.

Scientists are using powerful radio telescopes to listen to signals from about 1,000 stars, all within 100 light years of earth. In addition, they will scan the entire sky to “listen” for radio messages from more distant stars. Using a computer, they will be able to monitor more than eight channels at one time. Scientists are looking for any signal that stands out from the background noise.

Of the 200 billion stars in the Milky Way galaxy (银河星系), scientists find that 5% are like our sun. Perhaps half of them have a planet like earth. Such a planet would be a reasonable distance from the star for temperatures to be right for the evolution (进化) of life. Based on the inhabitable (that can be lived in) planets in our galaxy, most scientists agree that chances are likely that one or more of these planets support some life.

However, many scientists wonder whether intelligent (智能的) life exists on other planets. Some believe that twenty years of searching without any intelligible messages shows that no one is out there. They say that the evolution of intelligence comparable to ours is unlikely.

Other scientists believe that our search hasn’t been long enough to rule out the possibility that intelligent life exists in our galaxy. Although our sun family is only about five billion years old, our galaxy is about 20 billion years old. In that time, some scientists think it is likely that civilization much more advanced than ours have developed. Perhaps these civilizations send us no signals; perhaps we have not recognized the signals they have sent us. If we hope to find intelligent life, these scientists believe that we have to keep looking.

According to the passage, how many planets in our galaxy might be inhabitable?

A. 5 billion．　　 B. 10 billion.　　         C. 15 billion.　　         D. 200 billion

The first paragraph in this passage is mainly about ________ .

A. how scientists are looking for signs of life on other planets

B. why scientists are looking for signs of life on other planets

C. where scientists are looking for signs of life on other planets

D. when scientists are looking for signs of life on other planets

Which of these statements is True based on the information in the passage?

A. The earth is one of the oldest planets in our galaxy.

B. Most scientists believe that there is intelligent life on other planets.

C. Scientists don’t believe that there might be life on other planets.

D. Scientists are trying different ways to find signs of life on other planets.

    For centuries,the only form of written correspondence (通信)was the letters, letters were, and are, sent by some form of postal service, the history of which goes back a long way .Indeed, the Egyptians began sending letters from about 2000 BC,as did the Chinese a thousand years later.

   Of course, modern postal service now are much more developed and faster, depending as they do on cars and planes for delivery. Yet they are still too slow for some people to send urgent documents (紧急文件)and letters.

   The invention of the fax (传真) machine increased the speed of delivering documents even more. When you send a fax，you are sending a copy of a piece of correspondence to someone by telephone service. It was not until the early 1980s that such a service was developed enough for businesses to be able to fax documents to each other.

   The fax service is still very much in use when copies of documents require to be sent ,but, as a way of fast correspondence, it has been largely taken the place of by email ,Email is used to describe messages sent form one computer user to another.

   There are advantages and disadvantages with emails. If you send some one an email , then he will receive it extremely quickly .Normal postal services are rather slow as far as speed of delivery is concerned.

    However, if you write something by email, which you might later regret ,and send it immediately, there is no chance for second thoughts. At least, if you are posting a letter you have to address and seal(封)the envelope and take it to the post box.There is plenty of time to change your mind .The message is think before you email!

41.We can learn from the text that__________.

A.email is less popular than the fax service        

B.the postal service has over the years become faster

C. the postal service has over the years become slower

D. the fax service has a history as long as the postal service does

42.It can be inferred from the text that_________.

A. the fax service had been fully developed by the 1980s

B. letters have been used in China for about 1,000 years

C. the fax machine was invented after the 1980s

D. letters have been used in Egypt for about 2,000 years

43.In the last paragraph, the writer mentions "think before you email" to show that________.

A. you may regret if you don’t your envelope         B. you may regret before you send something by email

C. you’d better not send your email in a hurry     D. you need plenty of time to send an email

44.The text mainly deal with_________.

A. the progress in correspondence                      B. the advantage of fax machines

C .the advantage of emails                                 D. the invention of fax machines

For centuries ,the only form of written correspondence（通信）was the letter .Letters were ,and are ,sent by some form of postal service ,the history of which goes back a long way. Indeed ,the Egyptians began sending letters from about 2000 BC, as did the Chinese a thousand years later.

       Of course ,modern postal services now are much more developed and faster ,depending as they do on cars and planes for delivery .Yet they are still too slow for some people to send urgent documents（紧急文件）and letters.

       The invention of the fax（传真）machine increased the speed of delivering documents even more .When you send a fax ,you are sending a copy of a piece of correspondence to someone by telephone service .It was not until the early 1980s that such a service was developed enough for businesses to be able to fax documents to each other.

       The fax service is still very much in use when copies of documents require to be sent ,but ,as a way of fast correspondence, it has been largely taken the place of by email. Email is used to describe messages sent from one computer user to another.

       There are advantages and disadvantages with emails. If you send someone and email, then he will receive it extremely quickly. Normal postal services are rather slow as far as speed of delivery is concerned.

       However ,if you write something by email ,which you might later regret ,and send it immediately ,there is no chance for second thoughts. At least ,if you are posting a letter you have to address and seal（封）the envelope and take it to the post box .There is plenty of time to change your mind. The message is think before you email!

41．We can learn from the text that         .

       A．email is less popular than the fax service

       B．the postal service has over the years become faster

       C．the postal service has over the years become slower

       D．the fax service has a history as long as the postal service does

42．It can be inferred from the text that         .

       A．the fax service had been fully developed by the 1980s

       B．letters have been used in China for about 1,000 years

       C．the fax machine was invented after the 1980s

       D．letters have been used in Egypt for about 2,000 years

43．In the last paragraph ,the writer mentions “think before you email” to show that         .

       A．you may regret if you don’t seal your envelope

       B．you may regret before you send something by email

       C．you’d better not send your email in a hurry

       D．you need plenty of time to send an email

44．The text mainly deals with         .

       A．the progress in correspondence

       B．the advantage of fax machines

       C．the advantage of emails

       D．the invention of fax machines