题目内容

阅读理解。
     Every year farmers in areas which often suffer flood in Southeast Asia lose millions of tons of rice to
high water that kills their crops. That large amount of waste may soon be a thing of the past: SUBIA, a gene
discovered by researchers which the International Rice Research Institute (IRRI) and the University of
California, allows rice plants carrying the gene to live completely under water for two weeks.
     Flood - resistant (抗水浸) rice turned up among the 110,000 types of seed stored at the institute. It
produced disappointingly low yields (产量), but scientists were able to transfer the gene into more bountiful
varieties. These have shown promising results in tests by growers in India and Bangladesh over the past two
years.
     This rice success story would not have been possible without the treasure of genetic diversity hidden in
the IRRI's vault (underground room). As the world faces new agricultural challenge-charging climate, bugs
and diseases that have developed resistance (抵抗力) to old defenses - such genetic resources are likely to
become increasingly valuable. Fortunately, the IRRI is one of more than 1,000 organizations around the world
working to protect crop genes. Most plant species grown for food have an associated bank that stores
thousands of samples; seeds of landraces, wild relatives, and varieties that are rare, old, or adapted to very
specific environments. The banks ensure that it will be possible to develop new varieties in the future.
     The need for these botanical libraries has its roots in modern agricultural practices. According to the U. N.
Food and Agriculture Organization, 75 percent of plant diversity has been lost over the last century. Of more
than 30,000 eatable species, humans grow just 200 for food; 60 percent of plant calories in our diet comes
from wheat, rice, and corn.
1. According to the second paragraph, what can we learn about the flood-resistant rice?
A. It produces a small amount of rice.
B. Scientists have developed many more varieties of it.
C. Scientists have managed to improve its output.
D. It can produce more rice than the other 110,000 types at the institute.
2. From the passage we can infer that _____.
A. the newly - discovered gene will bring hope to the farmers in the areas often suffering flood
B. scientists will not be able to change the fact that rice plants carrying the gene produce low yields
C. the tests by growers in India and Bangladesh were hopeless
D. 110,000 types of seed stored at the Institute are flood - resistant
3. What's the main idea of the third paragraph?
A. The world faces new agricultural challenges.
B. Such genetic resources are likely to become valuable.
C. Scientists set up banks to store thousands of seed samples.
D. We should owe the rice success story to the seed banks.
4. As to the botanical libraries, the writer thinks they are _____.

A. useless
B. unnecessary
C. needful
D. needless

1-4: CADC
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阅读理解

Oldest Ever Galaxy Found

　　WASHINGTON(AP)－Astronomers believe they’ve found the oldest thing they’ve ever seen in the universe：It’s a galaxy(星系)far, far away from a time long, long ago．

　　Hidden in a Hubble Space Telescope photo released earlier this year is a small point of light that European astronomers now calculate is a galaxy from 13．1 billion years ago．That’s a time when the universe was very young, just about 600 million years old．That would make it the earliest and most distant galaxy seen so far．

　　By now the galaxy is so ancient it probably doesn’t exist in its earlier form and has already changed into bigger neighbors, said Matthew Lehnert of the Paris Observatory, lead author of the study published online Wednesday in the journal Nature．

　　“We are looking at the universe when it was a 20th of its current age,” said California Institute of Technology astronomy professor Richard Ellis, who wasn’t part of the discovery team．“In human terms, we’re looking at a 4-year-old boy in the lifetime of an adult．”

　　While Ellis finds the basis for the study “pretty good”, there have been other claims about the age of distant space objects that have not held up to careful examination．And some experts have questions about this one．But even the doubters praised the study as important and interesting．

　　The European astronomers calculated the age after 16 hours of observations from a telescope in Chile that looked at light signatures of cooling hydrogen gas．

　　Earlier this year, astronomers had made a general estimate of 600 to 800 million years after the Big Bang(宇宙大爆炸)for the most distant unclear points of light in the Hubble photograph, which was presented at an astronomy meeting back in January．

　　In the new study, researchers focused on a single galaxy in their analysis of hydrogen’s light signature, further finding out the age．Garth Illingworth of the University of California, Santa Cruz, who was the scientist behind the Hubble image, said it provided confirmation for the age using a different method, something he called amazing “for such faint objects”．

(1)

We can learn from the passage that _________．

[　　]

A．

the universe came into being about 14 billion years ago

B．

the galaxy is believed to be the same as it was just born

C．

the newly-discovered galaxy is the oldest one in the universe

D．

the galaxy had traveled about 600 millions before the scientists found it

(2)

We can infer from the fourth paragraph that _________．

[　　]

A．

the universe is actually very young

B．

the life-time of the universe is surprisingly long

C．

the humans have been so able as to see far into the universe

D．

what we can see about the universe now is just the tip of the iceberg

(3)

What did some people doubt according to the fifth paragraph?

[　　]

A．

The importance of the discovery

B．

The truth of the discovery

C．

The actual age of the new galaxy

D．

The size of the new galaxy
阅读理解。
    Ever since news of widespread food recalls caused by a carcinogenic dye(颜料) broke, there has
been confusion over possible links to the country of the same name, but Sudan officials say there is no
connection whatever.
   Sudan 1 is a red industrial dye that has been found in some chilli powder, but was banned in food
products across the European Union (EU) in July 2003.
   Since the ban was put in place, EU officials have been striving to remove some food products from
the shelves. So far 580 products have been recalled.
Last week Sudan's Embassy in the United Kingdom asked the Food Standards Agency (FSA) for
clarification of the origin of the dye's name.
   Omaima Mahmoud Al Sharief, a press official at Sudan's Embassy in China, explained the purpose
of the inquiry was to clear up any misunderstanding over links between the country and the poisonous
dye.
"We want to keep an eye on every detail and avoid any misunderstanding there," she said. "Our embassy
to Britain asked them how the dye got that name and whether the dye had something to do with our
country. But they told us there was no relationship."
   The FSA, an independent food security watchdog in Britain, received a letter from the Sudanese
embassy last week.
    "They asked us why the dye is named Sudan, however, we also do not know how it got the name,"
she said. "People found the dye in 1883 and gave it the name. Nobody knows the reason, and we
cannot give any explanation before we find out."
   Sudan dyes, which include Sudan 1 to 4, are red dyes used for colouring solvents(溶剂), oils,
waxes, petrol, and shoe and floor polishes. They are classified as carcinogens by the International
Agency for Research on Cancer.
1. What does the underlined word mean in paragraph one?
A. Causing cancer.    
B. Having side effect.    
C. Containing poison.    
D. Poisonous.
2. How did the Sudan 1 get its name?
A. The dye is often produced in Sudan.
B. The dye has something to do with the country named Sudan.
C. Nobody is sure of the origin of the name.
D. Many foods produced in Sudan contain the dye.
3. We can infer from the passage that        .
A. the Sudan government is paying much attention to the food safety
B. Sudan 1 is often used to be added to the food
C. people didn't realize the danger of Sudan 1 until 2003
D. many food shops will be closed down
4. Which of the following is the best title?
A. Keep away from Sudan 1
B. No Sudan 1 dye links to the country
C. How Sudan 1 dye got its name?
D. Pay attention to the food safety
阅读理解。
     Ever since they were first put on the market in the early 1990s, genetically modified (GM, 转基因) foods
have been increasingly developed and marketed in many countries in the word, mainly on the basis of their
promise to end the worldwide food crisis. But can GM technology solve world hunger problems? Even if it
would, is it the best solution?
     Despite what it promises, GM technology actually has not increased the production potential of any corp.
In fact, studies show that the most crown GM crop.
     GM soybeans, has suffered reduced productivity. For instance, a report than analyzed nearly two decades
of research on major GM food crops shows that GM engineering has failed to significantly increase US crop
production.
     Something else, however, has been on the rise, While GM seeds are expensive, GM companies tell farmers
that they will make good profits by saving money on pesticides (杀虫剂). On the contrary, US government
data show that GM crops in the US have produced an overall increase in pesticide use compared to traditional
crops. "The promise was that you could use less chemicals and boost production. But neither is true," said Bill
Christenson, President of the US National Farm Coalition.
     At the same time, the authors of the book World Hunger: Twelve Myths argue that there actually is more
than enough food in the world and that the hunger crisis is not caused by production, but by problems in food
distribution and politics. These indeed deserve our efforts and money. Meanwhile, the rise in food prices results
from the increased use of crops for fuel rather than food, according to a 2008 World Bank report.
     As a matter of fact, scientists see better ways to feed the world. Another World Bank report concluded that
GM crops have little to offer to the challenges of worldwide poverty and hunger, because better ways out are
available, among which "green" farming is supposed to be the first choice.
1. The author develops the second paragraph mainly _____.
A. by classification
B. by comparison
C. by example
D. by process
2. What does the underlined word "boost" in the third paragraph probably mean?
A. Control.
B. Evaluate.
C. Obtain.
D. Increase.
3. GM companies promise farmers that they will benefit from ______. 
A. practicing "green" farming
B. use of less chemicals
C. fair distribution of their crops
D. using more crops for fuel
4. Which of the following best describes the attitude of the author towards GM technology?
A. Optimistic
B. Defensive
C. Disapproving
D. Casual
阅读理解。
     Ever felt like destroying the car in front of you when you're
stuck in an endless traffic jam?
     Well ,the Spanish company StopStress is offering clients(客户 )
the possibility of doing just that-but in controlled ,safe conditions.
     Clients can also destroy computers, mobile phones and TV sets
in what the company calls" destructible therapy" ( therapy : treatment
of a medical disorder).
     "We target the machines that cause the most stress in modern
life,"company co-founder Jorge Arribas said in a telephone inter-
view. "People get rid of stress by screaming and beating the ma-
chines until they are tired out. "he explained.
     The company, based in the northern Spanish city of Soria, uses
deserted cars that still work. Heavy-metal music is used to excite
the clients. They are given protective suits and glasses, helmets and
huge hammers.
     Most people's rage only lasts for 5 to 10 minutes. But some go
on for hours : they beat cars on which they've put the names of people
or ideas they would like to get rid of.
     "Some even get together to turn the car over, "Arribas says. A
session costs 60 euros(US $80)per person.
     Arribas says the idea came to him when he was having trouble
parking his car.
     "Dozens of people have used the therapy, which helps people
become aware of their stress level and helps them to slow down,"
Arribas explained.
     "It's better to channel violence in a controlled way than to get
it out on one's husband and wife or in a traffic jam. "he added.
     StopStress already has branches in three Spanish cities, and is
planning to extend its market beyond Spain's borders.
1. The Spanish company StopStress offers people the chance to_______.   
A. calm down when they are angry
B. destroy things they no longer need
C. get rid of stress by destroying things
D. get rid of stress by screaming and shouting
2. Which of the following is NOT a means used directly to help people get less stressful in StopStress?   
A. Heavy-metal music.
B. Mobile phones.
C. Deserted cars.
D. Protective suits and glasses.
3. The passage is mainly intended to tell you __.
A. a special company in Spain
B. a special way to get rid of stress
C. a new and expanding busines
D. how people deal with stress in Spain
4. The underlined word " channel" in the passage has a similar meaning to" _____".  
A. let out                    
B. go in separate ways
C. avoid                    
D. reduce
阅读理解。

      Ever since news of widespread food recalls caused by a carcinogenic dye (颜料) broke, there has been
confusion over possible links to the country of the same name, but Sudan officials say there is no connection
whatever.
     Sudan 1 is a red industrial dye that has been found in some chilli powder, but was banned in food products
across the European Union (EU) in July 2003. Since the ban was put in place, EU officials have been striving
to remove some food products from the shelves. So far 580 products have been recalled. Last week Sudan's
Embassy in the United Kingdom asked the Food Standards Agency (FSA) for clarification of the origin of the
dye's name.
     Omaima Mahmoud Al Sharief, a press official at Sudan's Embassy in China, explained the purpose of the
inquiry was to clear up any misunderstanding over links between the country and the poisonous dye. 　　
     "We want to keep an eye on every detail and avoid any misunderstanding there," she said."Our embassy
to Britain asked them how the dye got that name and whether the dye had something to do with our country.
But they told us there was no relationship."
     The FSA, an independent food security watchdog in Britain, received a letter from the Sudanese embassy
last week. 　
     "They asked us why the dye is named Sudan, however, we also do not know how it got the name," she
said. "People found the dye in 1883 and gave it the name. Nobody knows the reason, and we cannot give any
explanation before we find out."
     Sudan dyes, which include Sudan 1 to 4, are red dyes used for colouring solvents (溶剂), oils, waxes,
petrol, and shoe and floor polishes. They are classified as carcinogens by the International Agency for
Research on Cancer.

1. What does the underlined word mean in paragraph one?
A. Causing cancer.
B. Having side effect.
C. Containing poison.
D. Poisonous.
2. How did the Sudan 1 get its name?
A. The dye is often produced in Sudan.
B. The dye has something to do with the country named Sudan.
C. Nobody is sure of the origin of the name.
D. Many foods produced in Sudan contain the dye.
3. We can infer from the passage that _____.
A. the Sudan government is paying much attention to the food safety
B. Sudan 1 is often used to be added to the food
C. people didn't realize the danger of Sudan 1 until 2003
D. many food shops will be closed down
4. Which of the following is the best title?
A. Keep away from Sudan 1
B. No Sudan 1 dye links to the country
C. How Sudan 1 dye got its name?
D. Pay attention to the food safety