Americans eat ______ vegetables per person today as they did in 1990.

A. more than twice B. as twice as many

C. twice as many as D. more than twice as many

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語 來源：2017屆江蘇南通中學(xué)高三上期中考試英語卷（解析版） 題型：單項(xiàng)填空

We urge ________ extreme caution in ________ use of this medicine, which has not been officially approved yet.

A. an; theB. an; 不填C. 不填; theD. 不填; 不填

查看答案和解析>>

科目：高中英語 來源：2016-2017學(xué)年江蘇南通中學(xué)高二上期中考試英語卷（解析版） 題型：閱讀理解

By 2050, a completely new type of human evolve as a result of extremely new technology, behavior, and natural selection. This is according to Cadell Last, a researcher at the Global Brain Institute, who claims mankind is undergoing a major “evolutionary transition”.

In less than four decades, Mr. Last claims we will live longer, have children in old age and rely on artificial intelligence to do ordinary and boring tasks. This shift is so significant, he claims, it is comparable to the change from monkeys to apes, and apes to humans. “Your 80 or 100 is going to be so radically different than your grandparents,” Mr. Last says, who believes we will spend much of our time living in virtual reality. Some evolutionary scientists believe this age could be as high as 120 by 2050.

Mr. Last claims humans will also demonstrate delayed sexual maturation, according to a report by Christina Sterbenz in Business Insider. This refers to something known as life history theory which attempts to explain how natural selection shapes key events in a creature’s life, such as reproduction. It suggests that as brain sizes increase, organisms need more energy and time to reach their full potential, and so reproduce less.

Instead of living fast and dying younger, Mr. Last believes humans will live slow and die old. “Global society at the moment is a complete mess,” he told MailOnline. “But in crisis there is opportunity, and in apocalypse (啟示) there can be transformation. So I think the next system humanity creates will be far more sophisticated, fair, and abundant than our current civilization.”

“I think our next system will be as different from the modern world, as our contemporary world is from the medieval (中世紀(jì)的) world. The biological clock isn't going to be around forever,” he added, and said that people could pause it for some time using future technology.

The change is already happening. Today, the average age at which a woman in Britain has her first baby has been rising steadily stands at 29. 8. In the US, just one percent of first children were born to women over the age of 35 in 1970. By 2012, that figure rose to 15 percent.

“As countries become socio-economically advanced, more and more people, especially women have the option to engage in cultural reproduction,” Mr. Last added. And as well as having more child-free years to enjoy leisure time, he believes artificial intelligence will make up the need for low-skill jobs. We may also spend a large amount of time living in virtual reality. “I’m not quite sure most people have really absorbed the implications of this possibility,” Mr. Last said.

His views are detailed in a paper, titled “Human Evolution, Life History Theory, and the End of Biological Reproduction" published Current Aging Science.

1.According to Cadell Last, a completely new type of human will appear because of ________.

① artificial intelligence ② new technology ③ natural selection ④ mundane tasks ⑤ behavior

A. ②③⑤ B. ①②③ C. ③④⑤ D. ①②⑤

2.Which statement is compared by Mr. Last to the change from monkeys to apes, and apes to humans?

A. We have diseases and die young.

B. We spend less time in virtual reality.

C. We give birth to a child when we are young.

D. We use intelligent robots to do everyday housework.

3.The underlined words in the third paragraph most probably mean “________”.

A. Reproduction.

B. Reproduce less.

C. Natural selection shapes key events.

D. Organisms need more energy and time to ripen.

4.In the next system Mr. Last explained we can infer that ________.

A. women are engaged in careers or hobbies instead of giving birth to babies

B. women are engaged in playing computer games rather than working

C. women are engaged in cultural reproduction in place of men

D. women are engaged in living in virtual reality without options

查看答案和解析>>

科目：高中英語 來源：2016-2017學(xué)年江蘇南通中學(xué)高二上期中考試英語卷（解析版） 題型：單項(xiàng)填空

Compared with her sister, Mary is even more ________ to, and more easily troubled by, what people think of her, so you’d better not say much before her.

A. sensibleB. sensitiveC. addictedD. available

查看答案和解析>>

科目：高中英語 來源：2016-2017學(xué)年黑龍江齊齊哈爾實(shí)驗(yàn)中學(xué)高一上期中英語卷（解析版） 題型：單項(xiàng)填空

It is illegal for a public official to ask people for gifts or money _________ favors to them.

A. in preference to B. in place of

C. in agreement with D. in exchange for

查看答案和解析>>

科目：高中英語 來源：2016-2017學(xué)年黑龍江齊齊哈爾實(shí)驗(yàn)中學(xué)高一上期中英語卷（解析版） 題型：閱讀理解

Technology is the application of knowledge to production. Thanks to modern technology, we have been able to increase greatly the efficiency of our work force. New machines and new methods have helped cut down time and expense while increasing overall output. This has meant more production and a higher standard of living. For most of us in America, modern technology is thought of as the reason why we can have cars and television sets. However, technology has also increased the amount of food available to us, by means of modern farming machinery and animal breeding techniques, and has made our life span longer via medical technology.

Will mankind continue to live longer and have a higher quality of life? In large measure, the answer depends on technology and our ability to use it widely. If we keep making progress as we have over the past fifty years, the answer is definitely yes. The advancement of technology depends on research and development, and the latest surveys show that the united States is continuing to put billions of dollars annually(每年) into such efforts. So while we are running out of some limited resources, we may well find technological substitutes (代用品) for many of them through our research programs.

Therefore, in the final analysis, the three major factors of production (land, labor and capital) are all influenced by technology. When we need new skills or techniques in medicine, people will start developing new technology to meet those needs. As equipment proves to be slow or inefficient, new machines will be invented. Technology responds to our needs in helping us improve our standard of living.

1.What is the best title for the passage?

A. The definition of technology

B. Modern technology

C. The application of technology

D. The development of technology

2.According to the passage, people can live a long life with the help of_________.

A. higher quality of life

B. medical technology

C. modem farming machinery

D. technological substitute

3.Which is the main idea of the passage?

A. Modern technology is the key to the improvement of standard of living.

B. The three major factors of production-land, labor and capital are all influenced by technology.

C. Technology is the response to our needs.

D. The United States is making great efforts to advance its technology.

查看答案和解析>>

科目：高中英語 來源：2016-2017學(xué)年西藏拉薩中學(xué)高一上第一學(xué)段考試英語卷（解析版） 題型：七選五

Some people make you feel comfortable when they are around. You spend an hour with them and feel you are already close friends. They are always good talkers. Here are several skills that good talkers have in common. If you follow the skills, they'll help you put people at their ease, and make friends with them quickly. __1.__

First of all, good talkers ask questions. Almost anyone, no matter how shy he is, will answer a question. One well-known businesswoman says，“At business lunches, I always ask people what they did that morning. __2.__” From there you can move on to other matters—sometimes to really personal questions. __3._

Second, once good talkers have asked questions, they listen to the answers. Your questions should have a point and help to tell what sort of person you are talking to. And to find out, you really have to listen carefully. Real listening at least means some things. If someone sticks to one topic, you can take it as a fact that he's really interested in it. Real listening also means not just listening to words, but to tones of voice. _4.__

Finally, good talkers know well how to “say goodbye”. If you're saying goodbye, you may give him a firm handshake and say, “I've really enjoyed meeting you.” _5.__ Let people know what you feel, and they may walk away, happy and satisfied.

A. It's polite to listen to others with a smile.

B. You'd better change the subject if the voice sounds dull.

C. Don't be afraid to say so if you want to see that person again.

D. Common as the question is, it will get things going.

E. You can become a popular person.

F. And how he answers will let you know how far you can go.

G. These people have something in common.

查看答案和解析>>

科目：高中英語 來源：2017屆黑龍江哈爾濱師范大學(xué)附中高三上期中考試英語卷（解析版） 題型：單詞拼寫

單詞拼寫

1.Get your tanks off was first said by a British prime minister, ____________ (reject) the threat of a potential strike by a trade union leader.

2.No one knows for sure why adolescence is unique ____________ humans.

3.Experts are c (相信) that this will happen in the future as more and more people learn English and call it their own.

4.This agreement is very a (模棱兩可的) and open to various interpretations.

5.Luke Skywalker was told that his c (忠誠) ought to finish his training.

6.Star Wars reflect many ____________ (抽象的) concepts in Greek, Roman and Chinese fork stories.

7.The boy can’t tolerate ____________ (捐贈(zèng)) a big fortune to the bad guys in the village.

8.The bed ____________ (尺寸是) about 2 metres across is bought for my son.

9.The computer company just released an ____________ (更新) version last week, and it'll be used in over 50 local classrooms this coming school year.

10.They had received no news of him since his ____________ (離開) from the island.

查看答案和解析>>

科目：高中英語 來源：2016-2017學(xué)年貴州銅仁一中高一上半期英語試卷（解析版） 題型：閱讀理解

It's school time again! You're probably feeling excited and maybe a little sad that summer is over. Some kids feel nervous or a little scared on the first day of school because of all the new things: new teachers, new friends, and even a new school. Luckily, these “new” worries only stick around for a little while. Let's find out more about going to a new school.

Most teachers kick off the new school year by introducing themselves and talking about all the stuff you'll be doing that year. Some teachers give students a chance to tell something about themselves to the rest of the class, too. When teachers do the talking on the first day, they often go over classroom rules and school rules so you'll know what's allowed and what's not. Please pay close attention.

You might already know a lot of people in your classes on the first day, but, it's a great day to make a new friend, so try to say hello to kids you know and new ones that you don't. Make the first move and you'll be glad you did, and so will your new friend!

Seeing old friends can make the first day a good one. You can make the day special by wearing clothes that you really like. Maybe you got a great T­shirt on one of your vacations, or a pair of sneakers (運(yùn)動(dòng)鞋). It also can make you feel good to be prepared and have all the things you need, such as pencils, folders, and whatever else you'll be needing. But make sure that you pack them the night before in case you don't have time in the morning.

1.The last paragraph mainly tells us about ________.

A．what to know about a new school

B．how to prepare for a new school

C．what to do on your first day of school

D．how to spend your first day of school

2.According to the passage, you usually do everything on the first day of school except ________.

A．introducing yourself

B．learning about the school rules

C．making new friends

D．going over your new lessons

3.If you happen to see an old friend on the first day of school, from the passage we know that you will feel ________.

A．nervous B．unlucky

C．happy D．upset

4.Where can you read the passage?

A．In a newspaper. B．In a scientific report.

C．In a notice. D．In a freshman handbook.

查看答案和解析>>

同步練習(xí)冊(cè)答案