Recently,scientists attending a meeting in Chicago presented new studies showing how food and its production affect global warming.They offered some suggestions for how to eat in a more environmentally friendly way.

For many years,scientists have warned us that our planet is getting warmer.If current trends continue,animals may start to die off and life could get very difficult for everyone.The temperature is rising because humans have been releasing massive amounts of greenhouse gases into the atmosphere,which surround the planet and keep heat from escaping.One of these gases is carbon dioxide.

Most carbon dioxide we produce comes from the process of making and eating food,the scientists reported in Chicago.The production of meat contributes to a lot of carbon dioxide.And much of meat’s contribution comes from beef,which is responsible for releasing even more greenhouse gases into the atmosphere.

The process of making a hamburger,for example,requires a lot of energy.A cow has to be fed and raised,and cow’s wastes are a major source of greenhouse gases.After the cow is killed,the meat has to be processed and shipped to a consumer,which takes fuel.And most of the cow won’t even be used for meat people eat.

By the time a hamburger finally lands on a dinner plate,it has taken a heavy toll on the environment.It is believed that the process of making a half?pound all?beef burger adds about 19 times the weight of hamburgers in carbon dioxide.

The message is clear:We can greatly reduce the production of greenhouse gases by eating less beef.Other kinds of meat like pork and chicken do less harm to the environment—at least in terms of the amount of greenhouse gases released.Nathan Pelletier,a scientist at Dalhousie University in Canada,reported that if everyone in industrial countries ate chicken instead of beef,we would cut the Earth’s greenhouse gases by more than half.

All kinds of meat,the scientists reported,are harder on the planet than vegetables.To grow and eat a pound of potatoes,for example,sends less than one quarter pound of carbon dioxide into the air.So shifting our diet to less meat and more vegetables may do the world some good.

1.The text mainly tells us ________.

A.what we eat can affect the whole planet

B.the way we live affects the environment

C.how we can save energy on the Earth

D.how we can produce environment?friendly food

2.What is likely to happen if the climate is getting warmer according to the passage?

A.Sea level will continue to rise sharply.

B.Human beings won’t have enough food.

C.It would be very hard for man to survive.

D.All the animals and plants will disappear.

3.Why does the author mention the process of making a hamburger?

A.To show meat is usually part of a hamburger.

B.To illustrate that our food contributes to greenhouse gases.

C.To prove making a hamburger is a complex process.

D.To suggest a lot of energy is needed to make hamburgers.

4.The author believes one effective way to fight global warming is ________.

A.we should eat no pork and no chicken

B.we should eat more chicken than beef

C.we should eat not meat but vegetables

D.we should eat less meat and more vegetables

5.Which of the following statements would Nathan Pelletier agree to?

A.Eating pork and chicken is more environmentally friendly.

B.Meat consumption is the main cause of greenhouse gases.

C.People in industrial countries consume more beef than fish.

D.Eating more beef is a more efficient way to save more energy.

 

1.A

2.C

3.B

4.D

5.A

【解析】

1.主旨大意題。文章的第一段通常表明文章的話題。結(jié)合本文第一段和全文的內(nèi)容可判斷出文章的話題是食物對(duì)全球氣候的影響。

2.細(xì)節(jié)理解題。根據(jù)文章第二段的內(nèi)容可知,如果全球變暖的趨勢(shì)持續(xù)下去,動(dòng)物可能開始滅絕,人類的生存更加困難。C項(xiàng)的陳述與第二段中的“l(fā)ife could get very difficult for everyone”意義相符。

3.推理判斷題。第三段的第一句告訴我們:科學(xué)家們認(rèn)為,人類在食物生產(chǎn)的過程中制造了大量的二氧化碳,而二氧化碳正是造成溫室效應(yīng)的氣體之一。在第四段中作者用制作漢堡的例子來證明自己的觀點(diǎn)。

4.細(xì)節(jié)理解題。根據(jù)最后一段的內(nèi)容可知,科學(xué)家發(fā)現(xiàn)所有的肉類對(duì)地球的危害都比蔬菜大,飼養(yǎng)動(dòng)物比種植蔬菜消耗的能量多得多。因此,如果我們能少吃肉多吃蔬菜,就會(huì)對(duì)地球有益。D項(xiàng)的陳述符合最后一段的意思。

5.推理判斷題。根據(jù)文章倒數(shù)第二段中Nathan Pelletier所說的話可知,雞肉比牛肉釋放的溫室氣體要少一些。

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中英語 來源:2015屆黑龍江哈爾濱第三十二中學(xué)高三9月月考英語試卷(解析版) 題型:閱讀理解

I came to study in the United States a year ago .Yet I did not know the real American society until I was injured in a car accident because after the accident I had to see a doctor and go to court.

After the accident .my roommate called a doctor for me. I was very grateful and determined to repay him one day. But the next day, he asked me to pay him $200 for what he had done. I was astonished. He had good reason to charge me, he said. And if I wanted to collect money from the person who was responsible for my injury, I’d have to have a good lawyer. And only a good doctor can help me get a good lawyer .Now that he had helped me find a good doctor, it was only fair that I should pay him.

But every day I went to see the doctor, I had to wait about 50 minutes. He would see two or three patients at the same time, and often stop treating one so as to see another. Yet he charged me $115 each time .The final examination report consisted of ten lines, and it cost me $215.

My lawyer was all smiles the first time we met. But after that he avoided seeing me at all. He knew very well the other party was responsible for the accident, yet he hardly did anything. He simply waited to collect his money. He was so irresponsible that I decided to dismiss him. And he made me pay him $770.

Now I had to act as my own lawyer. Due to my inexperience, I told the insurance company the date I was leaving America. Knowing that, they played for time…and I left without getting a cent.

1.The author’s roommate offered to help him because________.

A. he felt sorry for the author

B. he thought it was a chance to make some money

C. he knew the doctor was a very good one

D. he wanted the author to have a good lawyer

2.The word“charge”in the third paragraph means_________ .

A. be responsible B. accuse

C. ask as a price D. claim

3.What conclusion can you draw from the story?

A. Going to court is something very common in America.

B. One must be very careful while driving a car.

C. There are more bad sides in America than good sides.

D. Money is more important than other things in the US.

 

查看答案和解析>>

科目:高中英語 來源:[同步]2014年重大版高中英語必修四第三單元練習(xí)卷(解析版) 題型:完形填空

As a child,I was told that a wise person is the one who learns from everyone.Living in China me with many wonderful opportunities to put this principle into practice.

I am living in Harbin now,a city in the northern part of China,near Russia.Yesterday I to get money from the ATM and have a good cup of coffee after lunch. But I can’t speak Chinese yet and there are no signs in English the nearest supermarket or coffee shop.There are signs in Russian. “ espaciba ” which means thanks,I don’t know much else. I decided to smile at my every attempt to and ask for information that would me to an ATM and a coffee shop.It turned out that my efforts and my were met with more smiles.I learned that is to be found everywhere even I can’t communicate,and that people will depending on what I give.

Look around you for opportunities to learn from the most people.You will be surprised at what they can you!

1.A.helps B.compares C.impresses D.provides

2.A.needed B.refused C.managed D.failed

3.A.leaving for B.setting up C.looking for D.pointing to

4.A.Except for B.As for C.According to D.Instead of

5.A.Yet B.Or C.So D.Besides

6.A.relax B.communicate C.explain D.discuss

7.A.force B.lead C.transport D.follow

8.A.thanks B.signs C.questions D.smiles

9.A.illness B.weakness C.kindness D.happiness

10.A.before B.when C.because D.after

11.A.respond B.gain C.bargain D.benefit

12.A.famous B.useful C.unexpected D.familiar

13.A.charge B.teach C.lend D.require

 

查看答案和解析>>

科目:高中英語 來源:[同步]2014年重大版高中英語必修二第一單元練習(xí)卷(解析版) 題型:單項(xiàng)填空

To all the people here________ the honour for the other day.

A.belong B.belongs C.belongs to D.is belonged

 

查看答案和解析>>

科目:高中英語 來源:[同步]2014年重大版高中英語必修一第四單元練習(xí)卷(解析版) 題型:單項(xiàng)填空

It is________ for us to deal with.

A.a(chǎn)n enough difficult situation

B.such a difficult situation

C.too difficult a situation

D.so difficult a situation

 

查看答案和解析>>

科目:高中英語 來源:[同步]2014年重大版高中英語必修一第五單元練習(xí)卷(解析版) 題型:單項(xiàng)填空

If parents never expect their children to be helpful at home,they are sure________.

A.not B.not to C.not to be D.not to be that

 

查看答案和解析>>

科目:高中英語 來源:[同步]2014年重大版高中英語必修一第三單元練習(xí)卷(解析版) 題型:閱讀理解

Scientists have created a way to control a robot with signals from human brain.By generating the proper brainwaves—picked up by a cap with electrodes (電極) that sense the signals and reflect a person’s instructions—scientists can instruct a humanoid(類人的) robot to move to specific locations and pick up certain objects.

The commands are limited to moving forward,picking up one of two objects and bringing it to one of two locations.The researchers have achieved 94 percent accuracy between the thought commands and the robot’s movements.

“This is really a proof?of?concept demonstration,” said Rajesh Rao,a researcher from the University of Washington who leads the project.“It suggests that one day we might be able to use semi?autonomous robots for such jobs as helping disabled people or performing routine tasks in a person’s home.”

The person wearing the electrode cap watches the robot’s movements on a computer screen through two cameras installed on and above the robot.

When the robot’s cameras see the objects that are to be picked up they pass on the information to the user’s computer screen.Each object lights up randomly on the computer screen.When a person wants something picked up and it happens to light up,the brain registers surprise and sends this brain activity to the computer and then to the robot.The robot then proceeds to pick up the object.

A similar algorithm(計(jì)算程序) is used to decide where the robot will go.

“One of the important things about this demonstration is that we’re using a ‘noisy’ brain signal to control the robot,” Rao said.“That means we can only obtain brain signals indirectly from sensors on the surface of the head,not where they are generated deep in the brain.As a result,the user can only generate high?level commands such as indicating which object to pick up or which location to go to,and the robot needs to be autonomous enough to be able to execute such commands.”

In the future,the researchers hope to make the robots more adaptive to the environment by having them carry out more complex commands.

1.What is special about the robot introduced in the passage?

A.It is controlled by human thoughts.

B.It can be made humanoid.

C.It can be used to help the disabled.

D.It has high intelligence itself.

2.Which of the following is TRUE about the robot?

A.It can move forward and backward and pick up two objects at the same time.

B.It can move forward,pick up both objects and bring them to either location.

C.It can only move forward,pick up one object and put it in one location.

D.It can read all human thought demands and do as instructed.

3.What Rao said suggests that the new robot________.

A.is still at its early stage of development

B.will be widely used in our daily routine soon

C.is autonomous enough to complete complex commands

D.is only limited to doing routine work at home

4.The sixth paragraph mainly describes ________.

A.how the robot reacts to a person’s instructions

B.how the robot picks up the right object

C.the functions of the computer

D.how the robot finds out where to go

5.The underlined word “registers” in the passage can be best replaced by “________”.

A.receives B.shows C.writes down D.picks up

 

查看答案和解析>>

科目:高中英語 來源:[同步]2014年譯林牛津版高中英語必修四第一單元練習(xí)卷(解析版) 題型:書面表達(dá)

假如你是某英語報(bào)社“煩惱和我說”欄目的編輯Linda,收到中學(xué)生David 的來信。請(qǐng)你閱讀這封信后,給他回信。詞數(shù):120左右。

Dear Ms Linda,

Though living in a wealthy family, I don’t feel as happy as other boys because I’m forbidden to do what I want to ,such as surfing the Internet, playing with my friends, buying what I want , and so on. My parents ask me to study all day. I feel they are too hard on me . I often feel upset as I have no freedom. What shall I do ? I will greatly appreciate it if you could give me some advice.

Yours,

David

回信應(yīng)包括以下兩個(gè)要點(diǎn):

1.簡(jiǎn)述自己的類似的經(jīng)歷

2.提出至少兩條建議

 

查看答案和解析>>

同步練習(xí)冊(cè)答案