One of the most critical roles forests play i...

One of the most critical roles forests play is relieving climate change. Trees suck enormous amounts of carbon dioxide out of the air and fix the carbon in their wood and the soil. A recent study found that planting new trees over an area the size of the US could suck away two thirds of all the carbon dioxide discharge that humans have pumped into the atmosphere.

“Without animals, it is harder for forests to absorb carbon, as tree species (种类) important for protecting the climate could be lost without animals", Susanne Winter, a program director said at the WWF.

In Africa, many of the tree species that absorb the most carbon rely on large birds and primates (灵长类动物) to eat their fruits and spread their large seeds, according to the report. Without them, those trees would have difficulty reproducing and forests would lose their best carbon-storing trees.

“Forests are our greatest natural ally in the fight against global warming, ”Winter said.“If we want to hold back the worldwide decline in biodiversity and prevent the climate crisis,s we need to protect the forests and the species living there.

Forests also filter (过滤) water-- as water makes its way to lakes or groundwater reserves, the roots and soil separate it from deposits and pollution that it collects along the way. What' s more, forests regulate the global water cycle, since trees' leaves, branches, and roots store or send out water vapor.

Climate models show that forest-cutting down in Central Africa could lead to a 15% drop in rainfall in the US Midwest, and Amazon deforestation (森林滥伐) could cut Texas rainfall by 25%.

Humans also get food, wood, and medicine from the abundance of plants and animals in forests. Worldwide, 1.6 billion people rely on forests for their livings, according to the United Nations. About 300 million people live in forests, according to WWF.

1.What's the purpose of Paragraph 3?

A.To tell where the large seeds go.

B.To show the tree species in Africa.

C.To draw reader' s attention to Africa.

D.To support Susanne Winter’s opinion.

2.What does the underlined word“ally" in Paragraph 4 probably mean?

A.Winner.

B.Competitor.

C.Partner.

D.Victim.

3.How do forests change climate according to the passage?

A.By affecting air and water.

B.By feeding birds and animals.

C.By providing life necessities.

D.By increasing the variety of trees.

4.What can be inferred from the passage?

A.Water should be filtered.

B.The more forests, the more rain.

C.Forests should be globally protected.

D.Half the carbon dioxide is sucked away by trees.

高三英语阅读理解中等难度题查看答案及解析

One of the most popular activities enjoyed by Americans is spending time in forests and walking along paths through the country.This activity，called hiking，has led to the creation of paths throughout the United States.

One of the longest is the Appalachian National Scenic Trail.The trail is the first completed part of the National Trails System.The trails system was established by Congress and the president in 1968.The Appalachian Trail is more　 than 3,400 kilometers long.It starts in the northeastern state of Maine and ends in the southeastern state of Georgia.The trail goes through 14 states.They are Maine，New Hampshire，Vermont，Massachusetts，Connecticut，New York，New Jersey，Pennsylvania，Maryland，West Virginia，Virginia，Tennessee，North Carolina，and Georgia.

The path takes walkers through the Appalachian Mountains.They extend from the Canadian province of Quebec to the southern American state of Alabama.

The Appalachian Mountains are among the oldest on Earth.They first began forming about one thousand million years ago.During the millions of years since then，the mountains were changed and reformed by the forces of water and wind.Ice also changed the mountains，making many of them smaller and digging valleys and lakes among them.Many different kinds of trees grow along the trail.And many different kinds of animals live in the forests along the trail.

Lands along the trail are protected by the federal government and by state governments.Some parts are not protected by the government directly.Instead，they are protected by legal agreements with private owners willing to permit people to walk across their property.

Walkers on the Appalachian Trail pass through some of the great valley systems of the mountains.They can look down into these beautiful valleys and see farms and forests stretching across the land for many kilometers.Farmland in the valleys is rich and productive.And some of the great events in American history took place in the valleys.For example，one of the great battles of the American Civil War was fought in the Shenandoah Valley in Virginia.

1.The Appalachian Trail________.

A．is more than four thousand three hundred kilometers long

B．starts in the northern state of Maine

C．goes through more than fourteen states

D．ends in the southeastern state of Georgia

2. The Appalachian Mountains________.

A．are the first completed part of the National Trails System

B．began forming one million years ago

C．were changed by natural forces like water，wind and ice

D．were around by valleys and rivers and famous for its scenery

3. The lands along the trail________.

A．are protected entirely by either the federal government or state governments

B．are mainly protected by legal agreements with private owners

C．can be visited by travelers freely only under the permission of owners

D．are protected by both the federal government and state governments

4.What is mainly described in the last paragraph?

A．The Appalachian Mountains have some great valley systems.

B．Farms and grasslands stretch across the valleys for many kilometers.

C．One of the American independence battles was fought in the Shenandoah Valley.

D．Lakes in the Appalachian Mountains are one of the most beautiful sights.

高三英语阅读理解中等难度题查看答案及解析

— “Man From the Stars” is one of the most popular South Korean TV plays in China nowadays.

— But I’m afraid it can’t interest ______.

A. somebody        B. everybody             C. nobody        　　     D. anybody

高三英语单项填空中等难度题查看答案及解析

（湖南省怀化市2014年高三第二次模拟考试）26. — “Man From the Stars” is one of the most popular South Korean TV plays in China nowadays.

— But I’m afraid it can’t interest ______.

A. somebody        B. everybody             C. nobody        　　     D. anybody

高三英语单项填空简单题查看答案及解析

Criticism can be divided into two types. 1._____ This is the type of criticism that can be the most hurtful. Parents might express their disapproval of your choice in career, friends or lifestyle. People may criticize how you dress or the way you act. It can be terribly unpleasant to tolerate it.

The second type of criticism involves pointing out your weaknesses and mistakes. No one is perfect, yet many imperfect people seem to find it extremely easy to “let us know” when we mess up. 2. _____And the fact that they are telling us what we already know makes it much more annoying.

When people express their disapproval of some area of your life you first need to consider how you feel about it. You need to be secure in who you are and the decisions that you make.3.____

Remember that there is a difference between being firm in your choices and being stubborn. Don’t be stubborn. Be mature enough to truly hear what they are saying, even if you don’t agree with it at first. 4._____If not, just let it go and trust that they meant well, but what they were saying is not for you. Don’t be mad at them.

5._____ Improving yourself works best if you can see yourself from different angles. Other people have different views on what you are doing and can help you. If you are one of those people who just want to learn the hard way, try listening to some advice for a change. It might do you some good.

A.In many cases, we already know a lot of what people are saying to us.

B.You may come to realize that they have a good view of things and are right.

C.There is no need for you to care about others’ criticism.

D.The first type is when someone expresses their disapproval.

E.Bear in mind that you should never criticize others.

F.If your decisions are solid and you firmly believe in them, you won’t allow anyone to change your mind.

G.If someone is pointing out your mistakes, use it to your advantage.

高三英语信息匹配简单题查看答案及解析

Water is the most widely used resource in ______ industry, and plays ______ major role in energy production.

A. 不填; a         B. the; a        C. an; 不填      D. an; the

高三英语单项填空中等难度题查看答案及解析

As a member of one world, each of us has a role _____ to make the earth a better place.

A. playing          B. play            C. played           D. to play

高三英语单项填空中等难度题查看答案及解析

In 1963 the UN set up the World Food Programme,one of_____purposes is to relieve worldwide starvation.

A.which　　　　　　　　 B.its　　　　　　 C.whose　　　　　 D.whom

高三英语单项填空中等难度题查看答案及解析

Although one might not agree because of some of the criticism of it, advertising is essential to the kind of society in which people in the United Kingdom, and a very　　 proportion of the world live. Advertising is necessary as a　　　　 of communicating with others, of telling them about the goods and services that are offered, and of which most of them would never　　　　 to hear at all if it were not for advertising. And advertising helps a great deal to promote a　　　　 standard of living.

In talking about advertising, one should not think only　　　　 a commercial on television, or an advertisement in the newspapers or periodicals. In its widest　　　　 , advertising includes a host of other　　　 such as packaging, shop displays and--in the sense of communication--even the spoken word of the salesman. 　　　　 , the roots of advertising are to be found in the market place.

For many years it was thought that it was enough to　　　 goods and supply services, it is only more　　　　 that it has become increasingly understood that the production of goods is a waste of resources　　　　 those goods can be sold at a fair price within a　　　 time span. In the competitive society in which we live, it is essential that we go out and sell what we have to offer, and advertising plays an important role in this respect, whether selling at home or in　　　　 markets.

Approximately 2 percent of the UK gross national product (GDP) is spent on advertising. But it must not be thought that this advertising tries to sell goods to consumers who do not want them. Of course, advertising does try to attract the interest of the　　　　 consumer, but if the articles when 　　　　 does not match up to the standards that the advertising suggests that it will, it is obviously exceedingly unlikely that the article will sell well.

1.A. enjoyable 　　 B. considerable C. agreeable D. knowledgeable

2.A. data 　　　　　 B. proportion 　　 C. means 　　 D. message

3.A. get 　　　　　 B. put 　　　　　 C. find 　　 D. avoid

4.A. demanding B. raising 　　　　　 C. declining D. rising

5.A. in honor of B. in case of 　　 C. in terms of D. in favor of

6.A. sense 　　 B. border 　　　　　 C. level 　　 D. extent

7.A. conferences B. activities 　　 C. matters D. actions

8.A. Of all 　　 B. In all 　　　　　 C. Above all D. After all

9.A. protest 　　 B. program 　　 C. process D. produce

10.A. quickly 　　 B. immediately C. recently D. totally

11.A. unless 　　 B. though 　　　　　 C. until 　　 D. when

12.A. inevitable B. comfortable 　　 C. reasonable D. available

13.A. country 　　 B. import 　　　　　 C. job 　　 D. export

14.A. financial 　　 B. potential 　　 C. essential D. social

15.A. presented B. purchased 　　 C. responded D. respected

高三英语完形填空中等难度题查看答案及解析

272. Because of the role he played in freeing the African-American from slavery, Abraham Lincoln is ______ as one of the _______ of all American presidents .

高三英语单项填空简单题查看答案及解析