people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is
becoming desert all the time. Scientists may not be able to change the desert in time.
Why is more and more land becoming desert? Scientists think that people make deserts. People are doing
bad things to the earth.
Some places on the earth don"t get much rain. But they still don"t become deserts. This is because some
green plants are growing there. Small green plants and grass are very important to dry places. Plants don"t let
the sun make the earth even drier. Plants do not let the wind blow the dirt away. When a bit of rain falls, the
plants hold the water. Without plants, the land can become desert more easily.
B. can all be turned into good land before long
C. are becoming smaller and smaller
D. get very little rain
B. they don"t let the wind blow the soil away
C. they hold water
D. All of the above
B. there is not enough rain
C. people haven"t done what scientists wish them to do
D. scientists know little about the deserts
B. Land is becoming desert faster than scientists can change it back into good land.
C. If scientists can bring water to desert, people can live and grow food there.
D. More and more places are becoming deserts all the time.
Dolphins and sharks are showing up in surprisingly shallow water just off the Florida coast. Mullets, crabs,
rays and small fish gather by the thousands off an Alabama pier. Birds covered in oil are crawling deep into
marshes (沼泽), never to be seen again.
Marine scientists studying the effects of the BP disaster (英国石油公司漏油事件) are seeing some strange
phenomena. Fish and other wildlife seem to be fleeing the oil out in the Gulf and clustering in cleaner waters
along the coast in a trend that some researchers see as a potentially troubling sign. The animals" presence close
to shore means their usual habitat is badly polluted, and the crowding could result in mass die-offs as fish run
out of oxygen. Also, the animals could easily be captured by their enemies.
The nearly two-month-old spill (漏油) has created an environmental disaster in US history as tens of millions
of gallons have flown into the Gulf of Mexico ecosystem. Scientists are seeing some unusual things as they try
to understand the effects on thousands of species of marine life.
For nearly four hours Monday, a three-person crew with Greenpeace cruised past delicate islands and
mangrove-dotted inlets in Barataria Bay off southern Louisiana. They saw dolphins by the dozen frolicking (嬉
戏) in the oily sheen (光泽) and oil-tinged pelicans feeding their young. But they spotted no dead animals.
"I think part of the reason why we"re not seeing more yet is that the impacts of this crisis are really just
beginning," Greenpeace marine biologist John Hocevar said.
The counting of dead wildlife in the Gulf is more than an academic exercise; the deaths will help determine
how much BP pays in damages.
B. Dolphins and sharks show up in deep water.
C. Tens of thousands of marine animals are found dead.
D. Sea creatures flee from the spilled oil, gathering near the seashore.
B. the lack of environmental sense of BP
C. the nearly two-month-old oil spill
D. the crowding marine life
B. Disappointed.
C. Depressed.
D. Optimistic.
B. marine scientists have seen some strange phenomena
C. the disaster has little influence on dolphins
D. a three-person crew reached no conclusion
The move is aimed at controlling the number of deaths from smoking-related diseases, running at a million
a year.
But the rules have been criticized, because they do not include punishments for those who choose to ignore
them.
Many business owners hate rules that force them to ban smoking on their premises (经营场所) because
many customers do not like the rules and complain.
The rules do not allow smoking in places like restaurants, hotels, railway stations or theatres, but not at the
office.
Employers have a duty to warn staff off the dangers of smoking but do not have to forbid them from
lighting up at their desks.
Shanghai introduced similar rules a year ago, but people do not seem to take much notice of them. Often
you find people smoking at the next table while you are eating your meal or having a drink in a bar. The
problem is that the rules do not include punishments for businesses or individuals who ignore them.
It appears that many Chinese people are unaware of the dangers of smoking. Research suggests that only
one in four knows the harm cigarettes of second-hand smoke can cause.
Officials say they have to try to persuade people not to smoke to reduce the numbers dying from
smoking-related diseases.
At the same time the government makes a lot of money from the sales of cigarettes by the state-owned firm
that makes and sells all tobacco products throughout the country.
B. 44%
C. 33%
D. 55%
B. are curious about
C. don"t know
D. don"t care
B. Because they do not include punishments for those who choose to ignore the rules.
C. Because the rules are ignored by all the people who smoke.
D. Because nobody takes notice of the rules.
B. take more effective measures
C. do punish those who ignore the rules
D. let people know more about the dangers of smoking
●Stop getting junk mail. Billions of junk mail can be sent every year. Half of it is never opened Get-your
name off mailing lists. If 100,000 people stopped getting junk mail today, it would save 150,000 trees a year
●Stop reading newspapers. All over the world, millions of newspapers are thrown away every day,44
million newspapers in the USA alone-that"s half amillion trees a week. Either recycle your newspapers or read
the news online.
●Buy clothes made from organic materials. Conventional cotton farming seriously pollutes the environment, most of which uses chemical pesticides (农药) and fertilizers. Organic is better!
●Switch to solar energy. In one day, the sun will provide enough energy to power the planet. Why aren"t
we using it?
●If you have to drive, share the ride. Most cars in the USA have only one occupant. Also, 25 percent of car
rides are less than 1.5 kilometres. Get out and walk!
●Unplug your PC, TV and VCR. Simply turning them off isn"t enough Sets left on standby are still using 25
percent of their power.
●Hold on to your balloons. Helium-filled balloons which fly away usually end up in a lake or river, where
they can choke aquatic (水生的)creatures. Save your balloons and use them again. Or better still, don"t use
them at all.
●Feed the birds. Wild birds need food, especially in winter when other sources can be scarce. The greater
the range of foodstuffs you put out for them, the more types of birds you will attract.
●Plant a garden at your school. Learn the connection between the land and the table. Plant vegetables to eat,
flowers to admire and trees to improve the air.
B. To suggest some ways how to make full use of solar energy.
C. To advise protecting environment and saving energy.
D. To advise on how to recycle waste and save energy.
B. ready to be turned off
C. ready to be repaired
D. ready to be put away
B. Don"t accept junk mail.
B. Read your newspaper online.
D. Read only one newspaper
not clear, researchers say, whether television itself is the reason, but it is possible that things like snacking in
front of the TV or seeing ads for junk food influence young people"s diets.
[2] The study included nearly 1,400 high school students. It showed that those who watched TV for five
hours or more every day had less healthy diets than other students five years later. As a group, they ate fewer
fruits and vegetables, but ate more fast food, snack products and fried foods.
[3]"We"re not able to tell why," lead researcher Dr. Daheia J. Barr-Anderson said."But we have some
speculations(推测)." People who spend a lot of time in front of the TV, especially teenagers, may have more
snack. It may influence their long-term diet quality. It"s also possible that TV ads for fast food, sweets and
snacks make teenagers eat more of those foods. TV time might also replace exercise time for some kids.
[4] The researchers found a clear relationship between TV time during high school and diet quality of the
young. The heaviest TV viewers five years later, and those who"d watched fewer than two hours every day
had the most fruits and vegetables.
[5] According to Barr-Anderson, the findings support experts" advice that children should watch no more
than two hours of television every day."Parents should cut the TV time." Barr-Anderson said. She advised that
parents set a good example by eating right, being physically active and controlling their own TV time.
Some children may spend much time watching TV instead of _____.
2. What does" it" refer to in Paragraph 1 line2 mean? (no more than 3 words)
__________________________________________________________________________________
3. According to Barr-Anderson, what should parents do to set a good example for their children?
(no more than 15 words)
_________________________________________________________________________________
4. Fill in the blank in Paragraph 4 with proper words. (no more than 6 words)
_________________________________________________________________________________
5. What is the passage mainly about? (no more than 12 words)
_________________________________________________________________________________
- 1下列哪一种物质是光合作用产物( )A.水分B.有机物C.叶绿素D.无机盐
- 2位于我国东部地区,成为江西省和福建省界线的山脉是A.雪峰山B.太行山C.武夷山D.南岭
- 3【题文】读“经纬网图”,回答下列小题。【小题1】设A、B两地和B、C两地之间的最短距离分别为L1和L2,则(
- 4人口问题,资源问题,环境问题说到底都是 [ ]A.经济问题B.政治问题 C.文化问题 D.发展问题
- 5如图是小明用温度计测液体温度的示意图,你认为他的错误是:甲_________;乙_________。
- 6(1)用计算器进行统计计算时,样本数据输入完后,求标准差应按键______;(2)数据9.9、9.8、10.1、10.4
- 7椭圆的左右焦点分别为F1,F2,弦AB过F1,若△ABF2的内切圆周长为π,A,B两点的坐标分别为(x1,y1),(x2
- 8人体之中有两个腔是指( )A.颅腔和体腔B.胸腔和腹腔C.腹腔和盆腔D.颅腔和胸腔
- 9设全集U=R,集合M={x|x>1},P={x|x2>1},则下列关系中正确的是[ ]A.M=P B.PM C.
- 10下列各组物质或主要成分的化学式中,错误的是( )A.干冰(H2O)B.生石灰(CaO)C.纯碱(Na2CO3D.氧化钙
- 1从通行的便利性看,隋朝赵州桥在造桥技术上的创新设计采用[ ]A.单孔石拱B.平拱C.多索斜拉D.多孔曲拱
- 21) (2)
- 3现有失去标签的CaCl2、AgNO3、HCl、和Na2CO3四瓶溶液。为了确定四种溶液的成分,将它们编号为A、B、C、D
- 4已知x-2的平方根是±2,2x+y+7的立方根是3,则x+y的平方根为( )。
- 5两颗人造地球卫星,它们质量的比m1:m2=1:2,它们运行的线速度的比是v1:v2=1:2,那么( ).
- 6如图,电讯公司在由西向东埋设通讯电缆线,他们从点A埋设到点B时突然发现碰到了一个具有研究价值的古墓,不得不改变方向绕开古
- 7一个矩形线圈在匀强磁场中转动产生的交流电动势为.关于这个交变电流,下列说法中正确的是( ).A.交变电流的频率
- 8夏、商、周是我国青铜制造业的繁荣时期,其中又以_______最为辉煌灿烂,著名的青铜器代表有___________和__
- 9下列关于隔离的叙述正确的是[ ]A.只有生殖隔离能阻止种群间的基因交流B.所有物种的形成都要经过长期的地理隔离C
- 10仿照下边的句式再写两个句子,构成相互照应的一组排比句,最后作出结论。(5分)未来的春,可以有鲜花飘香,也可能有荆棘丛生;