Some scientists say that animals in the ocean...

Some scientists say that animals in the ocean are increasingly threatened by noise pollution caused by human beings. The noise that affect sea creatures comes from a number of human activities. It is caused mainly by industrial underwater explosions, ocean drilling, and ship engines. Such noises are added to natural sounds. These sounds include the breaking of ice fields, underwater earthquakes, and sounds made by animals themselves.

Decibels（分贝）measured in water are different from those measured on land. A noise of one hundred and twenty decibels on land causes pain to human ears. In water, a decibel level of one hundred and ninety-five would have the same effect.

Some scientists have proposed setting a noise limit of one hundred and twenty decibels in oceans. They have observed that noises at that level can frighten and confuse whales.

A team of American and Canadian scientists discovered that loud noises can seriously injure some animals. The research team found that powerful underwater explosions were causing whales in the area to lose their hearing. This seriously affected the whales’ ability to exchange information and find their way. Some of the whales even died. The explosions had caused their ears to bleed and become infected.

Many researchers whose work depends on ocean sounds object to a limit of one hundred and twenty decibels. They say such a limit would mean an end to important industrial and scientific research.

Scientists do not know how much and what kinds of noises are harmful to ocean animals. However, many scientists suspect that noise is a greater danger than they believed. They want to prevent noises from harming creatures in the ocean.

1.According to the passage, which of the following is increasingly dangerous to sea creatures?

A. The man-made noises.

B. The noises made by themselves.

C. The sound of earthquakes.

D. The sound of the ice-breaking.

2.As to the influence of noises on whales, which of the following statements is true?

A. They are deaf to noises.

B. Noises at a certain level may hurt them.

C. They are easily confused by noises.

D. Noises will limit their ability to reproduce.

3. We can know from the passage that many scientists think that the noise limit of one hundred twenty decibels would______.

A. prevent them from doing their research work

B. benefit them a lot in their research work

C. do good to their health

D. increase the industrial output

4.According to the passage, what will scientists most probably do in the future?

A. They will try their best to decrease noise.

B. They will work hard to cut down noise pollution.

C. They will study the effect of different noises.

D. They will protect animals from harmful noises.

高一英语阅读理解中等难度题查看答案及解析

Some scientists say that animals in the ocean are increasingly threatened by noise pollution caused by human beings. The noise that affects sea creatures comes from a number of human activities. It is caused mainly by industrial underwater explosions, ocean drilling, and ship engines. Such noises are added to natural sounds. These sounds include the breaking of ice fields, underwater earthquakes, and sounds made by animals themselves.

Decibels(分贝) measured in water are different from those measured on land. A noise of 120 decibels on land causes pain to human ears. In water, a decible level of 195 would have the same effect.

Some scientists have suggested setting a noise limit of 120 decibles in oceans. They have observed that noises above that level can frighten and confuse whales.

A team of American and Canadian scientists discovered that loud noises could seriously injure some animals. The research team found that powerful underwater explosions were causing whales in the area to lose their hearing, which seriously affected the whales’ ability to exchange information and find their way. Some of the whales even died. The explosions had caused their ears to bleed and become infected(感染的).

Many researches whose work depends on ocean sounds disagree with a limit of 120 decibels. They say such a limit would mean an end to important industrial and scientific research.

Scientists do not know how many and what kinds of noises are harmful to ocean animals. However, many scientists suspect that noise is a greater danger than they previously believed. They want to prevent noises from harming creatures in the ocean.

1.The second paragraph mainly tells us that the noises on land and in water ________ .

A．are both from human activities.

B．both do harm to sea animals

C．are measured differently

D．have the same effect on humans

2.As to(依据) the effects of noises on whales, which of the following statements is TRUE according to the passage?

A．They are deaf to noises.

B．Noises at a certain level may hurt them.

C．They are easily confused by noises.

D．Noises will limit their ability to reproduce.

3.Many researchers think that the noise limit of 120 decibels would ________ .

A．protect whales from noises

B．benefit them a lot in their research work

C．do good to their health

D．increase industrial output

4.What will scientists most probably do in the future?

A．Count the number of sea animals.

B．Stop their research on the ocean.

C．Study the effect of different noises.

D．Protect sea creatures from harmful noises.

高一英语阅读理解中等难度题查看答案及解析

It’s true to say that technology makes our lives easier. However, increasingly scientists are saying that we need to give ourselves a break-----otherwise we put ourselves at risk(风险) of developing hundreds of health problems. Over the summer the days are longer and sunnier. Why not put this free time to good use and do something away from technology?

You could learn a new skill. There are hundreds of possibilities: cooking, a musical instrument or a new sport. Haven’t you always wanted to learn how to knit(编织)? You could use your free time to practice these new things, which might lead to an exciting opportunity in the future.

If you just want to relax, why not head to a beach? Take along your favorite book and relax on the sand, or go for a walk along the coastline. If you don’t live near a beach, you could go to your local park. Why not have a picnic, or try to explore some of the local wildlife? You could even get involved in the latest craze(狂热): adult coloring books! Coloring is a surprising thing to help you relax, and it can be a nice way to escape from the stress of modern life!

Whatever you choose to do, try something new! You might surprise yourself and find a hidden gift within you; you might make new friends along the way. Next time you find yourself changing TV channels(频道) from one to another without a clear purpose, think about what else you could spend your time doing.

1.According to the text, technology_______.

A. makes our life harder　　

B. may bring us illness

C. keep us busy

D. gives us a break from work

2.In the author’s opinion, one of the best ways to relax is probably_______.

A. doing net shopping

B. watching TV at home

C. reading books on a beach

D. learning a new skill

3.Which of the following might be the best title of the text?

A. Spending your free time away from technology.

B. The disadvantages of Watching TV.

C. The relationship between technology and health.

D. Finding the hidden gift in you.

高一英语阅读理解中等难度题查看答案及解析

Scientist in Canada say big ocean fish have almost disappeared from the world since the start of industrial fishing in the nineteen-fifties. The scientists found that population of large fish like tuna, swordfish and cod have dropped by ninety percent in the past fifty years.

The study took ten years. The researchers gathered records from fishing businesses and governments around the world. The magazine Nature published the findings.

The scientists say the common method called longline fishing is especially damaging to populations of large fish. This method involves many fishing lines connected to one boat. These wires can be close to one-hundred kilometers long. They hold thousands of sharp metal hooks to catch fish.

Longline fishing is especially common in the Japanese fishing industry. Records showed that Japanese boats used to catch about ten fish for every one-hundred hooks. The study says longline fishing boats now might catch one fish per hundred hooks.

The scientists say industrial fishing can destroy groups of fish much faster than in the past. The study suggests the whole populations can disappear almost completely from new fishing areas within ten to fifteen years.

Ransom Myers of Dalhousie University in Nova Scotia led the study with Boris Worm of Dalhousie and the University of Kiel in Germany. Mister Worm says the destruction could lead to a complete re-organization of ocean life systems. Mister Meyers says the decreased numbers of large fish is not the only worry. He says even populations that are able to reproduce do not get the chance to live long enough to grow as big as their ancestors. He says not only are the fewer big fish, they are smaller than those of the past.

American government scientists say even with the best efforts to protect fish populations, decreases are to be expected.

1. Where is the passage probably taken from?

A. A story book.     B. A business magazine  C. An environment report      D. An economic survey

2. Big fish have gradually been disappearing especially because ________.

A. longline fishing method is used                       B. sea water is getting polluted

C. mankind destroys the environment                   D. governments don’t make the best efforts

3. Which of the following shows the fact that the populations of large fish have dropped?

A. Today’s “large” fish are smaller than those of the past.

B. Longline boats now might catch fewer fish every one-hundred hooks.

C. Fish even able to reproduce don’t have the chance to live longer.

D. Industrial fishing is an effective way to catch fish.

4. What can be the best title?

A. Discoveries Canadian Scientists Have Made      B. Japanese Fishing Industry

C. Losses of Big Fish                                          D. Modern Fishing Methods

5. When did the researchers begin to survey the decreasing of large fish?

A. In the 1960s        B. In the 1970s             C. In the 1980s                    D. In the 1990s

高一英语阅读理解简单题查看答案及解析

阅读下面材料, 在空白处填入适当的内容（一个单词）或括号内单词的正确形式。

All scientists subscribe to the view that the increase in the earth’s temperature is 　 1. to the burning of fossil fuels like coal, natural gas and oil to 　 2.　 (production) energy. Some byproducts of this process are called “greenhouse” gases, the most important one of 　 3.　 is carbon dioxide. Dr Janice Foster explains: “There is a natural phenomenon that scientists call the ‘greenhouse 　 4.　 ’ (effective). This is 　 5.　 small amounts of gases in the atmosphere, like carbon dioxide, methane and water vapour trap heat from the sun and 　 6.　 warm the earth. 　 7.　 the ‘greenhouse effect’, the earth would be about thirty-three degrees Celsius 8.　 (cool) than it is. So, we need those gases. The problem begins when we add huge quantities of extra carbon dioxide into the atmosphere. It means that more heat energy tends 　 9.　 (trap) in the atmosphere 　 10.　 (cause) the global temperature to to up.”

高一英语语法填空简单题查看答案及解析

A new report says plastics are responsible for $13 billion in damage to the oceans and the undersea environment. The findings were announced recently at a United Nations conference. 1.

Plastic thrown away carelessly makes its way into rivers and other waterways2.After a while, it collects in the sea. And plastic never goes away. Plastic is not biodegradable—destroyed by bacteria or natural processes. Instead, it just breaks up into smaller pieces over time. The oceans contain a lot of chemicals and other pollutants.3.That means harmful material may get into our food supply.

4.Human beings cause pollution and they can take steps to stop it. They can use fewer single use product containers and throw plastics away correctly. Plastic recycling programs also works—where old bottles and other plastics are collected, broken down and used to make new products. We could reuse bottles in our households many times if we wish to, rather than end it after the first use. We could, when we get rid of that plastic, recycle it and reuse it, which replaces the need for raw materials.

The report also calls on companies to improve methods for using plastics. 5.And it calls for information about the way plastic is thrown out or removed from use. By putting a new value on plastic, industry has a special reason to clean up the environment.

But all of the companies must join to deal with the problem.

A. It asks for them to better measure and direct plastic use.

B. But people can make a big difference.

C. Plastics should be gathered together and reused..

D. It is convenient to use plastic bags in everyday life.

E. Then, fish may eat the plastics.

F. The report tells about harm to sea life and what might be done to improve the situation.

G. The plastic eventually reaches coastal areas and ocean waters

高一英语七选五中等难度题查看答案及解析

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(柑桔) 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(谷类), rice is also in this kind of food; (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 :00 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 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 kinds of food to make them grow to be strong and healthy.

1.According to the scientists, which of the following groups of food is the healthiest for your lunch?

A. beef, pork, fish, milk　　 B. potatoes, carrots, rice, bread

C. chicken, apples, cereal, cabbages　　 D. oranges, bananas, fish, tomatoes

2.If there is Paragraph 4, what do you think is going to be talked about?

A. When people eat their lunch

B. Why people eat different kinds of food

C. How to cook food in different ways

D. What to do with the two problems

3.People in different countries and different places of the world _______.

A. eat food in different ways　　 B. cooks their food in the same way

C. has their meals at the same time　　 D. has the right kinds of food to eat

高一英语阅读理解中等难度题查看答案及解析

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.

1. According to the scientists, which of the following groups of food is the healthiest for your lunch?

2. It is important for people to eat __________.

3.People in different countries and different places of the world________________.

4. Which of the following is NOT true?

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

高一英语阅读理解简单题查看答案及解析

The number of  the workers in this factory________ 300, that is to say,

it________20%.

高一英语单词拼写困难题查看答案及解析

Endangered species are animals that are on their way to becoming extinct. Some of the reasons why animals become endangered are caused by humans. 1. Forests and grasslands are being destroyed for farm land Pollution is another leading cause of endangered animals. Air, water, and land pollution can harm animals by destroying their living environment. 2. For example, the arrival of new animal species in an area can endanger wild animals. All the reasons above have caused more and more animals to become endangered. So we should take action to help them. Here are some useful ways.

First, plant trees. Trees recycle oxygen, returning it to the air for us to breathe. 3.

Second, pick up trash. Picking up trash not only protects the environment and keeps our surroundings beautiful, but it can also save wild animals by giving them a safer and cleaner environment. 4.

5. The population increase threatens the wildlife as our resources become fewer and fewer, which influences wild animals” living environment greatly. So keep an eye on the latest news about endangered animals and reach out our hands! By contributing money, things or just volunteering, we will play a valuable role in the protection of wildlife and in helping our earth!

A.Third, donate something.

B.One reason is the loss of habitat.

C.The third reason is the arrival of new animal species.

D.Third, learn about the latest information about wild animals.

E.They also help to create a complete and lively global ecosystem.

F.So pick up as much trash as we can to help protect wild animals.

G.There are other causes of endangered species that are indirectly caused by humans.

高一英语七选五困难题查看答案及解析