In the past industries had more freedom than they have now,and they did not need to be as careful as they must today. They did not need to worry a lot about the safety of the new products that they developed. They did not have to pay much attention to the health and safety of the people who worked for them. Often new products were dangerous for the people who used them;often conditions in the work place had very bad effects on the health of the workers.
Of course sometimes there were real disasters which attracted the attention of governments and which showed the need for changes.Also scientists who were doing research into the health of workers sometimes produced information which governments could not ignore.At such times, there were inquiries into the causes of the disasters or the problems. New safety rules were often introduced as a result of these inquiries;however, the new rules came too late to protect the people who died or who became seriously ill.
Today many governments have special departments which protect customers and workers. In the US, for example, there is a department which takes charge of new airplanes and gives warnings about possible problems. It also makes the rules that aircraft producers must follow. Another department controls the foods and drugs that companies sell.A third department looks at the places where people work,and then reports any companies that are breaking the laws which protect the health and safety of workers. Of course,new government departments and new laws cannot prevent every accident or illness,but they are having some good results. Our work places are safer and cleaner than before. The planes and cars which we use for travel are better. Producers are thinking more about the safety and health of the people who buy and use their products.
1.The main topic of the passage is_________.
A. conditions in the work place
B. the freedom of industries in the past
C. the safety and health of workers and customers
D. changes in industrial production
2. It can be inferred from the passage that in the past_________.
A. industries were as careful in management as they are today
B. companies were free to put out any products they wanted to
C. many people were killed by dangerous products
D. workers often got ill because of the poor working conditions
3. It is implied in the passage that_________.
A. in the past no safety laws were introduced by governments
B. governments paid little attention to the safety of products
C. government officials often did not listen to scientists
D. governments and companies had different opinions about the safety of products
4.The special departments protect customers and workers in many ways EXCEPT by____.
A. testing new products B. designing new products
C. controlling the sale of products D. inspecting work places
高一英语阅读理解简单题
In the past industries had more freedom than they have now,and they did not need to be as careful as they must today. They did not need to worry a lot about the safety of the new products that they developed. They did not have to pay much attention to the health and safety of the people who worked for them. Often new products were dangerous for the people who used them;often conditions in the work place had very bad effects on the health of the workers.
Of course sometimes there were real disasters which attracted the attention of governments and which showed the need for changes.Also scientists who were doing research into the health of workers sometimes produced information which governments could not ignore.At such times, there were inquiries into the causes of the disasters or the problems. New safety rules were often introduced as a result of these inquiries;however, the new rules came too late to protect the people who died or who became seriously ill.
Today many governments have special departments which protect customers and workers. In the US, for example, there is a department which takes charge of new airplanes and gives warnings about possible problems. It also makes the rules that aircraft producers must follow. Another department controls the foods and drugs that companies sell.A third department looks at the places where people work,and then reports any companies that are breaking the laws which protect the health and safety of workers. Of course,new government departments and new laws cannot prevent every accident or illness,but they are having some good results. Our work places are safer and cleaner than before. The planes and cars which we use for travel are better. Producers are thinking more about the safety and health of the people who buy and use their products.
1.The main topic of the passage is_________.
A. conditions in the work place
B. the freedom of industries in the past
C. the safety and health of workers and customers
D. changes in industrial production
2. It can be inferred from the passage that in the past_________.
A. industries were as careful in management as they are today
B. companies were free to put out any products they wanted to
C. many people were killed by dangerous products
D. workers often got ill because of the poor working conditions
3. It is implied in the passage that_________.
A. in the past no safety laws were introduced by governments
B. governments paid little attention to the safety of products
C. government officials often did not listen to scientists
D. governments and companies had different opinions about the safety of products
4.The special departments protect customers and workers in many ways EXCEPT by____.
A. testing new products B. designing new products
C. controlling the sale of products D. inspecting work places
高一英语阅读理解简单题查看答案及解析
Two-thirds of the world’s major rivers have now been disrupted (中断) with more than 50,000 dams in an attempt to stole water and provide power. In the US, there are more than 85,000 dams, disrupting large and small rives and in most cases transforming natural flow. The most famous of these, the Hoover Dam constructed in the 1930’s, is mainly responsible for the fact that the Colorado River no longer reaches the ocean.
Dams besides all their attractive benefits also have negative impacts. Creating a reservoir means a large area must be flooded. Communities may lose their land, houses and cultural relics. Downstream (在下游方向) of a dam, the flow may be reduced so that farmers cannot irrigate (灌溉) their field.
Environmentally the new reservoir can be a paradise for wildlife especially birds. However it can cause greenhouse gas emissions (排放) and poison the water for fish. Also the dramatic rise and fall of water levels during dam releases is too extreme for plains and animals to cope with resulting in dead zones around the shores of reservoirs. Fish that lay their eggs in the sha Mows for example may find a few hours later that those sites are high and dry.
Dams don’t just block water flow. The flow may be reduced so that farmers will have great trouble getting water for their fields. They also prevent fish migrations and are a barrier to sediment (沉淀物) flows. Instead of rushing downriver sediments get backed up against the dam wall, which cause the reservoir level to increase over time. However, sediments which are rich in nutrients have become a problem. The fertility (富饶) of the entire system can be influenced with soils lost during seasonal rains not being replaced.
Perhaps the biggest problem can be seen in deltas (三角洲) often host to large cities, which are sinking into the oceans. Groundwater is being extracted to feed the city causing the urban weight to sink and sediments washed away by the ocean are no longer being replaced. The result is that sea level rise in cities from Shanghai to Alexandria.
1.What effects does creating a reservoir have on people’s life?
a. People will see fewer birds near the rivers.
b. Farmers below the dam may have less water to irrigate their field.
c. Visitors can’t see some cultural relics anymore.
d. More conflicts and wars over water will break out.
e. All kinds of fish will become extinct in the future.
A.b c B.c e
C.b e D.a c
2.With many dams built across rivers fish will______________.
A.find more places to lay their eggs B.feed on more sediment rich in nutrient
C.face a more dangerous living habitat D.find it easier to deal with the rise of water
3.How can dams influence the cities like Shanghai?
A.Its entire system will be influenced. B.It will lie below sea level in the future.
C.The rainy season will last longer. D.Rich soils will be washed away.
4.What does the text mainly talk about?
A.Environmental benefits of dams. B.Cultural loss dam.
C.Economical gain of dams. D.Environmental loss of dams.
高一英语阅读理解中等难度题查看答案及解析
What a wonder! They have finished _______ half of the project in such a short time.
A.no more than | B.no less than | C.not more than | D.much less than |
高一英语单项填空中等难度题查看答案及解析
In the past 50 years, the amount of water in the open ocean with zero oxygen has gone up more than fourfold. In coastal water bodies,including river mouths and seas, low-oxygen sites have increased more than tenfold since 1950.Scientists expect oxygen to continue dropping even outside these zones as Earth warms .
“Oxygen is fundamental to life in the Oceans,” said Denise Breitburg, a marine ecologist with the Smithsonian Environmental Research Center. “The decline in ocean oxygen ranks among the most serious effects of human activities on the Earth ’s environment. Actually, it's a great loss to all the support services that rely on recreation and tourism, including hotels and restaurants and taxi drivers and everything else. The reverberations(严重影响) of unhealthy ecosystems in the ocean can be extensive.”
In areas traditionally called “dead zones" , like those in Chesapeake Bay and the Gulf of Mexico,oxygen plummets(大幅下跌) to so low levels that many animals die. As fish avoid these zones, their habitats become smaller and they’ re easier to be attacked or caught. But the problem goes far beyond “dead zones”. Even smaller oxygen decline can prevent growth in animals, hinder reproduction and lead to disease or even death. It also can cause the release of dangerous chemicals such as nitrous oxide, a greenhouse gas up to 300 times more powerful than carbon dioxide. While some animals can boom in “dead zones”,overall biodiversity falls.
Climate change is the key criminal in the open ocean. Warming surface waters make it harder for oxygen to reach the inside of the ocean. Furthermore, as the ocean as a whole gets warmer, it holds less oxygen. In coastal waters, too much nutrient pollution from land creates algal blooms, which use up oxygen as they die and break down.
People's livelihoods are also on the line, the scientists reported, especially in developing nations. Smaller fisheries(渔场)may be unable to relocate when low oxygen destroys their harvests or forces fish to move elsewhere. So we humans have to carry on a war now and win the war.
1.What does the first paragraph mainly talk about?
A.The ocean has been losing its oxygen. B.The amount of sea water is increasing.
C.The coastal water bodies are dangerous. D.The Earth becomes warmer and warmer.
2.What can we infer from Denise Breitburg's words?
A.Different oceans have different levels of oxygen.
B.The decline in ocean oxygen has great influences.
C.The future of tourism relies on the levels of ocean oxygen.
D.The decrease in ocean oxygen is the most serious environment problem.
3.How does the “dead zone" affect sea animals?
A.It offers more food. B.It forms dangerous gas.
C.It reduces their living areas. D.It produces more carbon dioxide.
4.How can we win the war according to the text?
A.By closing smaller fisheries. B.By controlling humans' bad activities.
C.By improving people's living standards. D.By stopping nutrients entering the ocean.
高一英语阅读理解困难题查看答案及解析
By now, more than 100 photos ________ back to the earth by Chang’e-3.
A. had been sent B. has been sent C. have been sent D. will be sent
高一英语单项填空中等难度题查看答案及解析
Although many directors are _____ with the rise in China's movie industry, they have voiced concerns about possible bubbles (泡沫) in it.
A. disappointed B. delighted
C. bored D. annoyed
高一英语单项填空中等难度题查看答案及解析
People in developed countries are supposed ____ more healthy food before than what they have today.
A.to be had | B.to have | C.had | D.to have had |
高一英语单项填空简单题查看答案及解析
.People in developed countries are supposed ______ more healthy food before than what they have today.
A.to be had | B.to have | C.had | D.to have had |
高一英语单项填空困难题查看答案及解析
32._________on the lonely island_________more difficult than they had expected.
A.Survivor…proved | B.Surviving…proved |
C.Survival…was proved | D.To survive…proves |
高一英语单项填空简单题查看答案及解析
It is reported that up to now, mountain slides have cut off more than ten villages from the outside world, ______more than 100 hundred people alive and ______ many houses.
A. buried; destroyed B. burying; destroying
C. to bury; to destroy D. being buried; being destroyed
高一英语单项填空简单题查看答案及解析