Four hundred years ago, an Italian scientist named Galileo Galilei became the first person to see the craters on the moon. Galileo was one of the first people to use a telescope to study the sky. Sinc 题目和参考答案——青夏教育精英家教网—

题目内容

Four hundred years ago, an Italian scientist named Galileo Galilei became the first person to see the craters（环形山） on the moon. Galileo was one of the first people to use a telescope to study the sky. Since then, telescopes have become the most important tool used by astronomers. Scientists never stop finding new ways to make these instruments more powerful. In the next several years, two new telescopes with different purposes are to be used.

One of the telescopes, called Pan-STARRS, could save humans from dying out. Nick Kaiser, a scientist who works on the project, says the Pan-STARRS telescope has been designed to find “90 percent of all killer asteroids(小行星) near Earth”.

Pan-STARRS, like most telescopes, uses mirrors and lenses(透镜) to provide pictures of outer space. Giant mirrors are used to “gather” light. They reflect the light onto the lens of a camera, which can then record the image.

When completed, Pan-STARRS will include four telescopes which will be put on top of a mountain on the Hawaiian island of Maui. Only one telescope is in place and working now. Each telescope will take pictures of one patch of sky for about 30 seconds, and then move on to another patch. Every night, each telescope will take pictures of about 1,000 patches. Every week, each telescope will have photographed the whole sky.

Each of the four telescopes will take pictures of the same patches of sky. One telescope, working alone, may sometimes incorrectly show an asteroid. If there are three other telescopes working, astronomers can use them to see if there really is an asteroid coming our way. By using four telescopes instead of one, scientists hope to get a better picture of space. If a giant asteroid was identified, astronomers would try to break it up long before it reached Earth.

1. Galileo Galilei is mentioned to ____________.

A．tell us the history of telescopes

B．introduce the topic of the passage

C．show people his contributions

D．tell us about the craters on the moon

2. For what purpose is Pan-STARRS designed?

A．To find more asteroids around Earth.

B．To help scientists know Earth better.

C．To find killer asteroids coming towards Earth.

D．To learn about asteroids in outer space.

3.What is paragraph 3 mainly about?

A．The use of mirrors in a telescope.

B．Why Pan-STARRS is different.

C．How telescope “gather” light

D．How a telescope works.

4.How many patches is the whole sky divided into when Pan-STARRS is working?

A．1,000

B．7,000

C．21,000

D．28,000

5. The four telescopes will take pictures of the same patches of sky because _____.

A．one telescope often takes unclear pictures

B．one telescope may provide incorrect information

C．information from just one telescope is usually incorrect

D．no information is allowed to be identified based on single information

【答案】

BCDBB

【解析】略

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相关题目

Do you know of anyone who uses the truth to deceive (欺骗)? When someone tells you something that is true, but leaves out important in formation that should be included, he can give you a false picture.

For example, some might say, “I just won a hundred dollars on the lottery (彩票). It was great. I took that dollar ticket back to the store and turned it in for on e hundred dollars!”

This guy’s a winner, right? Maybe, maybe not. We then discover that he bought $200 worth of tickets, and only on e was a winner. He’s really a big loser!

He didn’t say anything that was false, but he left out important information on purpose. That’s called a half-truth. Half-truths are not technically lies, but they are just as dishonest.

Some politicians often use this trick. Let’s say that during Governor Smith’s last term, her state lost one million jobs and gained three million jobs. Then she seeks another term. One of her opponents(对手) says, “During Governor Smith’s term, the state lost one million jobs!” that’s true. However, and honest statement would have been, “During Governor Smith’s term, the state had a net gain of two million jobs.”

Advertisers(广告商) will sometimes use half-truths. It’s against the law to make false statements so they try to mislead you with the truth. An advertisement might say, “Nine out of ten doctors advised their patients to take Yucky Pills to cure toothache.” It fails to mention that they only asked ten doctors and nine of them work for the Yucky Company.

This kind of deception happens too of often. It’s a sad fact of life: Lies are lies, and sometimes the truth can lie as well.

How much did the lottery winner lose?

A. One hundred dollars. B. Two hundred dollars.

C. Three hundred dollars. D. Four hundred dollars.

We may infer that the author believes people should _______.

A. buy lottery tickets B. make use of half-truths

C. not take anything at face value D. not trust the Yucky Company

What do the underline words “net gain” in Paragraph 5 mean?

A. final increase B. big advantage

C. large share D. total saving

What can we know from the example of the Yucky Pill advertisement?

A. False statements are easy to see through.

B. Half-truths are often used to mislead people.

C. Doctors like to act in advertisements.

D. Advertisements are based on facts.

Do you know of anyone who uses the truth to deceive(欺骗)?When someone tells you something that is true，but leaves out important information that should be included. he can give you a false picture．

For example，someone might say，“I just won a hundred dollars on the lottery(彩票)．It was great．I took that dollar ticket back to the store and turned it in for one hundred dollars!”

This guy’s a winner，right? Maybe，maybe not．We then discover that he bought $ 200 worth of tickets，and only one was a winner．He’s really a big loser!

He didn’t say anything that was false，but he left out important information on

purpose．That’s called a half truth．Half truths are not technically lies，but they are

just as dishonest．

Some politicians often use this trick．Let’s say that during Governor Smith’s last

term，her state lost one million jobs and gained three million jobs．Then she seeks an

other term．One of her opponents(对手)says，“During Governor Smith’s term，the

state lost one million jobs!” That’s true．However，an honest statement would have

been，“During Governor Smith's term，the state had a net gain of two million jobs．’’

Advertisers(广告商)will sometimes use half—truths．It’s against the law to make

false statements so they try to mislead you with the truth．An advertisement might say，

“Nine out of ten doctors advised their patients to take Yucky Pills to cure toothache．”It fails to mention that they only asked ten doctors and nine of them work for the Yucky

Company．

This kind of deception happens too often．It’s a sad fact of life：Lies are lies，and

sometimes the truth can 1ie as well．

How much did the lottery winner lose?

A．one hundred dollars． B．Two hundred dollars．

C．Three hundred dollars． D．Four hundred dollars．

We may infer that the author believes people should

A．buy lottery tickets if possible B．make use of half—truths

C．be careful about what they are told D．not trust the Yucky Company

What do the underlined words “net gain” in Paragraph 5 mean?

A．final increase B．big advantage

C．1arge share D．total number

What can we know from the example of the Yucky Pill advertisement?

A．False statements are easy to see through．

B．Half-truths are often used to mislead people．

C．Doctors like to act in advertisements．

D．Advertisements are based on facts．

How many examples does the writer give to show how the truth is used to deceive?

A．One． B．Two． C．Three． D．Four．

Which of the following is true according to the passage?

A．Using half truths is against the law．

B．Technically，half truths are in fact lies．

C．Yucky Pills is a very good medicine for toothache．

D．Governor Smith did a good job during her last term．

Which of the following best expresses the main idea of the passage?

A．He’s really a big loser!

B．Sometimes the truth can lie as well．

C．Advertisers will sometimes use half truths．

D．It’s against the law to make false statements．

There are many ways to find a job. It can be as easy as walking into a neighborhood store to look at its announcement board. Local stores often have areas where people can put small signs telling what kind of service they need or can provide. Such services include caring for children or cleaning houses.
Or, job searchers can look in the newspaper. Local newspapers have employment announcements placed by companies seeking workers.
Another popular tool for finding jobs is the Internet. For example, people in four hundred and fifty cities around the world can use the Craigslist Web site to buy objects, meet people or find a job. Craigslist says that it receives two million new job listings each month.
Another useful way to find a job is through a college or university. For example, students at the University of Texas in Austin can go to the Career Exploration Center to get help in finding a job. Of course, looking for a job requires knowing what kind of work you want to do. For example, there is a book called “What Color is Your Parachute (降落伞)?” by Richard Bolles. This book has been helping people choose a career (职业) since it was first published in nineteen seventy.
Some experts also help people find jobs. Susan W. Miller owns a company called California Career Services in Los Angeles. She says her company helps people find jobs by first helping them understand their strengths, goals and interests. Then she provides them with methods and resources to help them find the right job.
【小题1】What is the passage mainly about?

A．Finding a job.	B．College students’ part-time jobs.
C．Craigslist Web site.	D．The relation between study and work.

【小题2】“What Color is Your Parachute?” is a book which gives tips to those who want to _____.

A．work on the airplane	B．buy a parachute
C．publish a book	D．find a suitable job

【小题3】It can be learned from the passage that ______.

A．companies often put job information in local shops

B．the Internet is the most popular tool for job hunters in the USA

C．Susan W. Miller’s company is helping people choose careers

D．California Career Services mainly serves university students

【小题4】How many ways of finding a job are mentioned in the passage?

There are many ways to find a job. It can be as easy as walking into a neighborhood store to look at the announcement board. Local stores often have areas where people can put small signs telling what kind of service they need or can provide. Such services include caring for children or cleaning houses.

Or, job searchers can look in the newspaper. Local newspapers have employment announcements placed by companies seeking workers.

Another popular tool for finding jobs is the Internet. For example, people in four hundred and fifty cities around the world can use the Craigslist Web site to buy objects, meet people or find a job. Craigslist says that it receives two million new job listings each month.

Another useful way to find a job is through a college or a university. For example, students at the University of Texas in Austin can go to the Career Exploration Centre to get help in finding a job. Of course, looking for a job requires knowing what kind of work you want to do. For example, there is a book called “What Color is Your Parachute(降落伞)？”by Richard Bolles. This book has been helping people choose a career since it was published in nineteen seventy.

Some experts also help people find jobs. Susan W. Miller owns a company called California Career Services in Los Angeles. She says her company helps people find jobs by first helping them understand their strengths, goals and interests. Then she provides them with methods and resources to help them find the right job.

1.What is the passage mainly about? __________

A．Finding a job B．College students’ part-time jobs

C．Craigslist Web site D．The relation between study and work

2.By logging on the Craigslist Web site, you can _________ .

A．sell your old things B．do some shopping online

C．create your own announcement board D．get useful information about 450 cities

3.“What Color is Your Parachute(降落伞)？”is a book giving tips to those who want to ________ .

A．work on the plane B．buy a parachute C．publish a book D．find a suitable job

4.It can be learned from the passage that _______ .

A. companies often put job information in local shops.

B. the Internet is the most popular tool for job hunters in the USA.

C. Susan W. Miller’s company is helping people choose careers

D. California Career Services mainly serves university students.

5.How many ways of finding jobs are mentioned in the passage?

A．Three B．Four C．Five D．Six

Nearly four hundred supermarkets in Beijing are preparing to dim(使暗淡) their lights ________ the "Earth Hour 2010" on Saturday night．

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