It about twenty years since CCTV to broadcast English programs.A．has been; begunB．is; beganC．is; has begunD．was; began 题目和参考答案——青夏教育精英家教网—

题目内容

It _____ about twenty years since CCTV ____ to broadcast English programs.

A．has been; begun

B．is; began

C．is; has begun

D．was; began

解析试题分析：考查固定句型。固定句型：it is/has been 一段时间since从句。句意：自从…以来。已经一段时间了。Since后面使用过去时，指从过去开始到现在，前面可以使用一般现在时，也可以使用现在完成时。句意：自从中央电视台播放英语节目到现在已经有20多年了。故B正确。
考点：考查固定句型。
点评：固定句型：it is/has been 一段时间since从句。句意：自从…以来。已经一段时间了。Since后面使用过去时，指从过去开始到现在，前面可以使用一般现在时，也可以使用现在完成时。

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We often talk about ourselves as if we have permanent genetic defects （缺陷） that can never be changed．“I’m impatient．” “I’m always behind．” “I always put things   21 !” You’ve surely heard them．Maybe you’ve used them to describe   22 ．
These comments may come from stories about us that have been   23  for years—often from   24  childhood．These stories may have no   25  in fact．But they can set low expectations for us．As a child, my mother said to me, “Marshall, you have no mechanical （操作机械的） skills, and you will never have any mechanical skills for the rest of your life．” How did these expectations   26  my development? I was never   27  to work on cars or be around   28 ．When I was 18, I took the US Army’s Mechanical Aptitude Test．My scores were in the bottom for the entire nation!
Six years later,   29 , I was at California University, working on my doctor’s degree．One of my professors, Dr．Bob Tannbaum, asked me to write down things I did well and things I couldn’t do．On the positive side, I   30   down, “research, writing, analysis, and speaking．” On the   31  side, I wrote, “I have no mechanical skills．”
Bob asked me how I knew I had no mechanical skills．I explained my life   32  and told him about my   33  performance on the Army test．Bob then asked, “ 34  is it that you can solve   35  mathematical problems, but you can’t solve simple mechanical problems?”
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D
For jet-setters, a new way to get a restful night
Many people hate the idea of having to sleep on a plane. But Swedish entrepreneur Oscar Dios thinks they can be persuaded otherwise and he has created a new kind of hotel to prove it.
Dios says it is the world’s first jumbo jet hostel, an actual jet-plane at’ Sweden’s main airport outside Stockholm which has been converted into a 25-robin guesthouse that sleeps as many as 72 people.
“I learned abo0t this plane that was-standing abandoned at Arlanda airport and I’ve been trying the concept of hostels in many different houses and buildings,” he told reporters. “I thought, ‘Why not a plane?’”
Jumbo Hostels opened for business on Thursday, giving customers the chance to check in and sleep in a room that can best be described as cozy.
“The most challenging part with this project is trying to build something inside a metal hull -- it’s just really, really tight.”
The jet, which was originally produced for Singapore Airlines, was taken out of service in 2002.
One thing the hostel has. going for it is price-a room starts al 35.0 Swedish crowns (about $4.1% which is a lot less than hotel rooms outside of major airports.
Another feature: customers can get married on the wing of the plane and reside in the plane’s more luxurious honeymoon room situated in the cockpit.
Instead of walking down the aisle, lovebirds can take what Jumbo Hotel calls the “wing walk,” where they can be joined in bliss at the wing tip. The hostel has someone ready to perform the ceremony.
But in some respects, this hostel remains a plane-most clients have to share the jet’s nine bathrooms and staff only wear air steward and stewardess outfits. The only room that has its own bathroom is the honeymoon suite.
68. Why does Oscar Dios make jet plane hotel?
A. Because he is fond of plane very much.
B. Because he is very curious
C. Because he wants to earn more money.
D. Because he likes trying the concept of hotel in many different things.
69. Which of the following statement is not true about the plane?
A. The plane was in service before 2002 .
B. Now the plane as hostel is at Arlanda airport.
C. The plane was first produced for Singapore Airline.
D. The metal of the plane is very hard.
70. For the customers who get married on the plane, _________.
A. they can live in the room situated in the cockpit.
B. They will have their own bathroom
C. They can walk down the aisle
D. The wedding ceremony will be performed by the person prepared by the hotel.
71. Which of the following is the disadvantage of the Jumbo Hotel?
A. It’s price is too high.
B. It hasn’t enough rooms.
C. Sleeping on it is not comfortable.
D. Most clients don’t have their own bathroom.

First the ground shook in Haiti, then Chile and Turkey. The earthquakes keep coming hard and fast this year, causing people to wonder if something evil (邪恶的) is happening underfoot.
It’s not.
While it may seem as if there are more earthquakes occurring, there really aren’t. the problem is what’s happening above ground, not underground, experts say.
More people are moving into big cities that happen to be built in quake zones, and they’re rapidly putting up buildings that can’t withstand (经受) earthquakes, scientists believe.
And around-the-clock news coverage (报道) and better earthquake monitoring make it seem as if earthquakes are ever-present.
“I can definitely tell you that the world is not coming to an end,” said Bob Holdsworth, an expert in tectonics (筑造学) at Durharn University in the UK.
A 7.0 magnitude quake in January killed more than 230,000 people in Haiti. Last month, an 8.8 magnitude quake--- the fifth-strongest since 1900—killed more than 900 people in Chile. And two weeks ago, a 6.0 magnitude quake struck rural eastern Turkey, killing at least 57 people.
On average, there are 134 earthquakes a year that have a magnitude between 6.0 and 6.9, according to the US Geological Survey. This year is off to a fast start with 40 so far—more than in most years for that time period.
But that’s because the 8.8 quake in Chile generated a large number of strong aftershocks, and so many quakes this early in the year skews (扭曲) the picture, said Paul Earle, a US seismologist (地震学家).
Also, it’s not the number of quakes, but their devastating (破坏性的) impacts that gain attention, with the death tolls (死亡人数) largely due to construction standards and crowding, Earle added. “The standard mantra (咒语) is earthquakes don’t kill people, buildings do, ” he said.
There have been more deaths over the past decades from earthquakes, said University of Colorado geologist Roger Bilham. In an opinion column last month in the journal Nature, Bilham called for better construction standards in the world’s big cities.
Of the 130 cities worldwide with populations of more than 1 million, more than half are prone (倾向于) to earthquakes, Bilham said.
Developing nations, where populations are booming, don’t pay attention to earthquake preparedness, Bilham said.” If you have a problem feeding yourself, you’re not really going to worry about earthquakes.”
Another reason quakes seem worse is that we’re paying attention more. The Haiti earthquake quickly followed by the 8.8 in Chile made everyone start to think.
But it won’t last, said US disaster researcher Deniis Mileti. “People are paying attention to the violent planet we’ve always lived on,” Mileti said.” Come back in another six months if there has been no earthquakes, most people will have forgotten it again. ”
73. What is the main idea of the article?
A. The number of earthquakes is increasing this year.
B. The reasons why earthquakes are so devastating.
C. The reasons why recent earthquakes have struck large cities.
D. Why earthquakes seem to be more serious this year.
74. Which of the following is NOT a reason for the seeming increase in earthquakes this year，
according to the article?
A. Greater underground activity.
B. A larger number of buildings prone to damage during earthquakes.
C. Around-the-clock news coverage.
D. Better earthquake monitoring.
75. According to the article, it is safe to say that ______.
A. there is an evil force beneath the world’s surface
B. large cities are always built in quake zones
C. enough attention has been paid to reducing the impact of earthquakes
D. the earthquake in Chili caused many aftershocks.
76. According to the article, the greater damage of earthquakes this year can be mainly caused by ______.
A. the occurrence of larger earthquakes
B. insufficient warnings about earthquakes
C. poor construction standards and overcrowding
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Scientists have learned a lot about the kinds of food people need. They say that there are several kinds of food that people should eat every day. They are: (1) green and yellow vegetables of all kinds; (2)citrus （柑橘）fruits and tomatoes; (3) potatoes and other fruits and vegetables ; (4) meat of all kinds, fish and eggs; (5) milk and foods made from milk; (6) bread or cereal (谷物), rice is also in this kind of foods; (7) Butter or something like butter.
People in different countries and different places of the world eat different kinds of things. Foods are cooked and eaten in many different kinds of ways. People in different countries eat at different times of the day. In some places people eat once or twice a day; in other countries people eat three or four times a day. Scientists say that none of the differences is really important. It doesn’t matter whether foods are eaten raw or cooked, canned or frozen. It doesn’t matter if a person eats dinner at 4 o’clock in the afternoon or at eleven o’clock at night. The important thing is what you eat every day.
There are two problems, then, in feeding the large number of people on earth. The first thin g is to find some ways to feed the world’s population so that no one is hungry. The second is to make sure that people everywhere have the right kind of food to make them grow to be strong and healthy.
【小题1】 According to the scientists, which of the following groups of food is the healthiest for your lunch?

A．chicken, apples, cereal, cabbages.	B．potatoes, carrots, rice, bread.
C．oranges, bananas, fish, tomatoes.	D．beef, pork, fish, milk

【小题2】 It is important for people to eat __________.

A．three times a day	B．dinner at twelve o’clock
C．cooked food all the day
D．something from each of the seven kinds of food every day.

【小题3】People in different countries and different places of the world________________.

A．have the right kinds of food to eat	B．cook their food in the same way
C．have their meals at the same time	D．eat food in different ways.

【小题4】 Which of the following is NOT true?

A．People in some places don’t have enough to eat.

B．There are too many people in the world.

C．One of the problems is that no one is hungry.

D．The scientists are trying to make people e grow to be strong and healthy.

【小题5】If there is paragraph 4, what do you think is going to be talked about?

A．When people eat their lunch.	B．What to do with the two problems.
C．How to cook food in different ways.	D．Why people eat different kinds of food.

Look closely at ,your hands-are they clean? It doesn't matter how many times you was your hands. They're still crowded with microbes, which are also called "germs" or "bacteria". Microbes are everywhere. But don't worry-most microbes don't harm you. and many actually help you stay alive.
Now, scientists say the microbes that live on our hands could be used in a surprising way: fighting crime.
When police visit the scene of a crime, they often look for fingerprints to try to identifythe criminal. But according to a recent study, investigators could even use microbes to help break a criminal case.
Every person has his or her own set of microbes that live on their hands, according to scientists at,the University of:Colorado. That means the mix of different kinds of microbes on everybody's hand is unique-much like one's fingerprint.
The scientists wanted to know whether this microbe mix could be used as a new kind of fingerprint-especially in a crime scene where fingerprints might be hard to find. And policemen use forensics such as studying fingerprints to identify the criminal.
"Microbe fingerprints are harder to hide," said Noah Fierer, one of the scientists.
"You can't sterilize(为……杀菌) a surface just by wiping it off. "
His team compared the bacteria on the hands of 273 people with the bacteria found on each person's computer keyboard. For the study, the keyboards had been used only by the people who were being tested. The study showed that the mix of microbes from each per- son's hands matched the mix of microbes on that person's keyboard. The scientists were easily able to tell the 273 people apart-just by looking at their keyboards.
But there are a lot more than 273 criminals. Other scientists wonder whetherthe microbe fingerprint can really be that useful.
Fierer agrees that scientists have a lot more work to do before the microbe fingerprint will be a useful tool．
【小题1】According to the passage, microbes on people's hands_____

A．do more harm than good	B．are easy to get rid of
C．are almost the same	D．might help find crimes

【小题2】The underlined word "forensics" in Paragraph 5 probably refers to________.

A．the scientific test used by police

B．a new kind of fingerprint

C．a kind of bacteria'in people's hands

D．a kind of newly invented keyboard

【小题3】What did Fierer's team find through the study?

A．They found the criminal among the 237 people.

B．They could tell who had used which computer.

C．Computer keyboards couldn't keep people's microbe fingerprints.

D．People's characters could be identified by the keyboards they used.

【小题4】We can learn from the passage that ______.

A．your microbes may give you away

B．scientists will come to a clear conclusion soon

C．many scientists think microbe fingerprints useless

D．the microbe fingerprint has been used in many cases

【小题5】The main idea of the passage is about_____.

A．the importance of fingerprints	B．how to clean our hands
C．the usefulness of microbes	D．different germs on our hands

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