Electric cars are dirty. In fact, not only are they dirty, but they might even be more dirty than their gasoline-powered cousins.

People in California love to talk about “zero-emissions (排放) vehicles”, but people in California seem to be clueless about where electricity comes from. Power plants mostly use fire to make it. Apart from the few people who have their roofs covered with solar cells, we get our electricity from generators (發(fā)電機). Generators are fueled by something----usually coal, oil, but also by heat generated in nuclear power plants. There are a few wind farms and geothermal (地?zé)? plants as well, but by far we get electricity mainly by burning something.

In other words, those “zero-emissions” cars are likely coal-burning cars. Because the coal is burned somewhere else, it looks clean. It is not true. It's as if the California Greens are covering their eyes----“If I can't see it, it's not happening.” Gasoline is an incredibly (極其) efficient way to power a vehicle; a gallon of gas has a lot of energy in it. But when you take that gas (or another fuel) and first use it to make electricity, you waste a nice part of that energy, mostly in the form of wasted heat--at the generator, through the transmission lines, etc.

A gallon of gas may drive your car 25 miles. But the electricity you get from that gallon of gas won't get you nearly as far---so electric cars burn more fuel than gasoline-powered ones. If our electricity came mostly from wind or geothermal, or solar, then an electric car truly would be clean. But for political, technical, and economic reasons, we don't use much of those energy sources.

In addition, electric cars' batteries which are poisonous for a long time will eventually end up in a landfill (垃圾填埋場). And finally, when cars are the polluters, the pollution is spread across all the roads. When it's a power plant, though, all the junk is in one place. Nature is very good at cleaning up when things are not too concentrated, but it takes a lot longer when all the garbage is in one spot.

1.Which of the following words can replace “be clueless about” in Paragraph 2?

A. be familiar with. B. fail to understand.

C. be curious about. D. show their interest in.

2.The electricity we get from a gallon of gas may make our car run _________.

A. at least 25 miles B. more than 25 miles

C. less than 25 miles D. as far as 25 miles

3.In the author’s opinion, compared with cars using gas, electric cars are more __________.

A. harmful B. expensive

C. efficient D. environmentally-friendly

4.It can be inferred from the passage that __________.

A. electric cars’ batteries are no longer poisonous in the landfill

B. electric cars are not clean since we get electricity mainly by burning something

C. zero-emissions vehicles should be chosen to protect our environment

D. now electric cars are used more than their gasoline-powered cousins

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：2013-2014學(xué)年安徽合肥市高三第一次質(zhì)量檢測英語試卷（解析版） 題型：其他題

Art is an important part of education, not only on its own but in the rest of education as well. However, in this information age, advanced technology in school has gained more attention than art. Sometimes when the school has a tight budget, it is usually art rather than technology that becomes the first thing to be cut.

Anyway, the significance of art can’t be ignored. First of all, in school it can help students develop a variety of life skills such as communication skills, problem-solving skills and self-expression skills. Secondly, for high school students, those who are involved in arts classes can have higher test scores. Besides, for some students, art seems to be motivation for coming to school because it’s a subject that they can outshine, which eventually balances their educational experience.

New technology surely offers many benefits to some aspects of education, making teaching and learning easier and more effective. For example, technology simplifies tasks that take much longer to do, like conducting research or finding information. But advanced technology has bad effects such as the risk of being overweight, tiredness and even potential mental health problems, while art doesn’t. On the other hand, unlike art, no technology can develop students’ critical (批判的) thinking skills and a creative mind, both of which can help them to find successful careers after they graduate. Furthermore, no technology can help students to learn to bear responsibility, develop their imagination and increase their confidence.

Generally, art should not be replaced with advanced technology in schools and the last thing to be cut out of school curriculum.

Title

Should Technology 1. Art?

Situation

Technology has attracted more2. than art In schools, which is in danger of being cut.

The3. roles that art plays in school

● Developing 4. life skills

● Improving academic performance

● Serving as 5. for attending school

Advantages of art over technology

● Causing less health problems

● Developing critical thinking and 6.

● Helping students take on 7.

● Developing imagination

● Making students feel more 8.

9.

Art should be no doubt 10.on the school curriculum.

查看答案和解析>>

科目：高中英語 來源：2014-2015學(xué)年重慶巴蜀中學(xué)高三上學(xué)期第一次模擬考試英語試卷（解析版） 題型：書面表達

假如你是李華，新華中學(xué)學(xué)生。你校最近成立了讀者俱樂部。成為俱樂部成員的要求就是要推薦一本書給同學(xué)們。請根據(jù)以下要點，寫一封郵件給俱樂部負責(zé)人David。

● 祝賀俱樂部的成立；

● 推薦書籍 Harry Potter，并簡單闡述推薦理由；（故事有趣，包含許多人生哲理等）

● 讀者俱樂部的成立對學(xué)生的意義，并表達想成為其中一員的愿望。

注意：詞數(shù)不少于80；不能逐字逐句翻譯；郵件格式及開頭已經(jīng)給出（不計入總詞數(shù)）。

參考詞匯： 人生哲理 philosophies of life

Dear David,

I am Li Hua, a student from Xinhua Secondary School. ______________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

Yours sincerely,

Li Hua

查看答案和解析>>

科目：高中英語 來源：2016屆福建四校高三第二次聯(lián)考英語試卷（解析版） 題型：閱讀理解

WHAT’S the most important thing of life?

People’s answers vary greatly. For British scientist Robert Edwards，the answer is having a child.“Nothing is more special than a child，”he told the BBC.

Edwards，the inventor of the In Vitro Fertilization(IVF)technology—more commonly known as“test?tube(試管)baby”technology—passed away on April 10 ,2013 at the age of 87.

Edwards changed the lives of millions of ordinary people who now rejoice(充滿喜悅)in the gift of their own child，”said Peter Braude，professor at King’s College London.“He leaves the world a much better place.”

Edwards started his experiments as early as the 1950s，when he had just finished his PhD in genetics. At that time，much of the public viewed test-tube babies as“scary”，according to Mark Sauer，professor at Columbia University，US.

Edwards and his colleague Patrick Steptoe faced opposition from churches，governments and media，not to mention attacks from many of their fellow scientists.“People said that we should not play God and we should not interfere with nature，”Edwards once told Times. He said that he felt “quite alone” at the time.

“But Edwards was a fighter，and he believed in what he was doing，”said Sauer. Without support from the government，the two struggled to raise funds to carry on. And in 1968 they finally developed a method to successfully fertilize human eggs outside the body.

The first test-tube baby was born on July 25，1978.Her name was Louise Brown. Despite people’s safety concerns，Brown was just as healthy as other children.

“IVF had moved from vision to reality and a new era in medicine had begun，”BBC commented.

Ever since then，public opinion has evolved considerably. Couples who were unable to have babies began thronging(蜂擁)to Edwards’ clinic. Nowadays，Reuters reports，some 4.3 million other“test-tube” children exist. Edwards received a Nobel Prize in 2010 and was knighted(封為爵士)by Queen Elizabeth Ⅱ the following year.

Before his death，Edwards was still in touch with Louise.“He is like a granddad to me，”she said in an interview with the Daily Mail.

He is a granddad to millions, in fact.

1.What is the article mainly about?

A．The first test-tube baby.

B．A new era in medicine.

C．The inventor of IVF technology.

D．The changes IVF technology has brought.

2.The writer quoted Peter Braude to ________．

A．show how difficult it was for Edwards to do his work

B．describe what kind of person Edwards was

C．explain why he is loved by all children

D．comment on his achievement

3.The underlined word“opposition”in Paragraph 6 is closest in meaning to ________．

A．a(chǎn)ttack B．support

C．test D．influence

4.What is the CORRECT order of events in Edwards’ life?

a．He received a Nobel Prize.

b．He struggled to raise funds.

c．The first test-tube baby was born.

d．He was knighted by Queen Elizabeth Ⅱ.

e．He succeeded in fertilizing human eggs outside the body.

f．He started his experiments on IVF technology.

A．f—e—b—c—a—d B．f—b—e—c—d—a

C．f—b—e—c—a—d D．f—e—d—a—c—b

查看答案和解析>>

科目：高中英語 來源：2015-2016學(xué)年浙江溫州十校聯(lián)合體高一上期中英語試卷（解析版） 題型：單項填空

Mr. Johnson’s son ______ lives in Chicago is a doctor.

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

查看答案和解析>>

科目：高中英語 來源：2015-2016學(xué)年廣東惠陽高級中學(xué)高二上學(xué)期期中考試英語試卷（解析版） 題型：短文改錯

短文改錯（共10小題，每小題1分，滿分10分）

假如英語課上老師要求同桌之間交換修改作文，請你修改你同桌寫的以下作文，文中共有10處語言錯誤，每句中最多有兩處，每處錯誤僅涉及一個單詞的增加、刪除或修改。

增加：在缺詞處加一個漏詞符號（∧）并在其下面寫出該加的詞。

刪除：把多余的詞用斜線(＼)劃掉。

修改：在錯的詞下面劃一橫線，并在該詞下面寫出修改后的詞。

注意：1．每處錯誤及其修改均僅限一詞；

2．只允許修改10處，多者（從第11處起）不計分。

Great Britain consists of four countries: England, Wales, Scotland and Northern Ireland. On the 13th century Wales was linked to England. In 1603, they were joined to Scotland. They were united in peace instead of by war. Furthermore, just as they were going to get Ireland connecting to form United Kingdom, the southern part of Ireland was broke away, so only Northern Ireland joined with England.

England is the larger of the four countries and for convenience it was divided into three zone: the South of England, the Midlands and the North. Most of the population are settled in the South, and most of the industrial cities is located in the Midlands and the North.

London is the capital city with the great historical treasures, that has the oldest port built by the Romans in the 1st century AD, the oldest building begun by the Anglo Saxons in the 1060s and oldest castle constructed by later Norman rulers in 1066.

查看答案和解析>>

科目：高中英語 來源：2016屆江西贛州市十三縣高三上期中聯(lián)考英語試卷（解析版） 題型：語法填空

閱讀下面材料，在空白處填入適當(dāng)?shù)膬?nèi)容（1個單詞）或括號內(nèi)單詞的正確形式（不多于3個單詞）。

What do people do with their old, out of date but still useful computers? Most people don’t know 1. to do with them. Many old computers are put away in homes. Many more 2. (throw) away as rubbish.

Finally, some companies are thinking of ways 3. (bring) down the number of old computers. Sony has agreed to help recycle old Sony products. Dell, Hewlett Packard and other 4. (company) now also take back some old computers.

In some countries, laws have been passed, too. Computer companies have to pay for collecting and 5. (recycle) their used products. And 70% of computer waste must be recycled. The idea behind the laws 6. (be) that computer companies themselves should pay for the cost. That will encourage them to make computers 7. (easy) to repair and upgrade (升級).

Yet while many people are throwing away good computers, others cannot afford 8. at all. Hundreds of organizations are working to solve this problem. They collect and repair old computers. Some also teach others how to repair computers. 9. computers then go to schools, charities (慈善團體) and people who need them. Giving a used computer to one of these organizations can turn one person’s rubbish 10. someone else's useful things and cut down waste, too.

查看答案和解析>>

科目：高中英語 來源：2015-2016學(xué)年江蘇淮安淮海中學(xué)高二上期中英語試卷（解析版） 題型：其他題

請認真閱讀下列短文，并根據(jù)所讀內(nèi)容在文章后表格中的空格里填入一個最恰當(dāng)?shù)膯卧~。

注意：請將答案寫在答題紙上相應(yīng)題號的橫線上。每個空格只填一個單詞。

How to Survive Embarrassing Moments

Have you ever done something embarrassing? At that moment, you probably wished you could disappear into thin air. Unfortunately, embarrassing things happen to everyone at one time or another. The good news? You can keep the damage to the minimum．Here's some help．

Laugh it off

You're staring at your crush （意中人） so hard that you walk into a wall．You trip over your own feet and drop all your books．The best thing you can do? As long as you're not seriously hurt, laugh it off．Say like "Hey, I can teach you to do that if you want to!" or "It took me years to learn that!" By laughing at yourself, you show people you're confident and still in control of the situation．That's bound to make a stronger impression than the fact that you dropped a stack of books．

Move on

Some situations are too personal to laugh off．Your underwear falls out of your backpack. Your bathing suit falls off in the pool．You pass gas while giving a presentation．Making a joke would just call more attention to what happened — and that's the last thing you want．What now? You can just pretend nothing happened and go back to what you were doing, or you can acknowledge it with a "Oh, that was awkward" and then move on．

If there's a joker who thinks it's a good idea to point out how badly you just embarrassed yourself, fix him with a glare and then go back to whatever you were doing．Tell yourself he's a little bug on the ground, not even worth thinking about．Remind yourself that it's over, done．Move on．

Apologize and move on

Some embarrassing situations pack a double punch．Not only do you embarrass yourself, but you make someone else feel bad．You say to a friend that another friend is such a copycat, and then realize the copycat is standing right behind you．You imitate your teacher's unusual accent just as the teacher walks in．Now you're embarrassed and they're mad or hurt．

Making a joke now would make the situation even worse, so don't go there．Although you might feel like running away or even crying, neither of those responses will make you look better．Instead, apologize, "I'm so sorry．That was really mean of me．"

If you've been disrespectful to a teacher or a parent, accept whatever consequences without complaint．If you've hurt a friend, do your best to make it up to them．Once you've done all you can to make things right again, move on．If someone else brings it up, just say, "I feel bad enough about that —can we just let it go, please?"

The next time you're stuck in an embarrassing moment, remind yourself that you're a strong person and you can get through this．Stay calm and act confident and the moment will pass．

Topic

It is true that we cannot1.____________ getting embarrassed.

2.________ on how to keep the damage to the minimum

Laugh it off

Laugh it off3.________ you are seriously hurt.

Laughing at yourself helps show your 4.__________, which will make a deeper impression than your embarrassment.

Move on

In some embarrassing situations, you can just move on after 5. _________ it with a “Oh, that was awkward.”

If someone points out your embarrassment and laugh at you, 6. _______ at him and continue what you are doing. Tell yourself that those who laugh at you are not 7._________ of your consideration.

Make an 8. _________ and than move on

If you show disrespect for teachers or parents, face consequences rather than 9. ________.

Make things right again and move on.

If someone else 10.________ your mistake, tell him that you hope to let it go.

Conclusion

Stay calm and act confident and you’ll survive embarrassing moments.

查看答案和解析>>

科目：高中英語 來源：2014-2015學(xué)年北京市東城區(qū)普通校高三11月聯(lián)考英語試卷（解析版） 題型：閱讀理解

I really love my job because I enjoy working with small children and like the challenges and awards from the job．I also think my work is important．There was a time when I thought I would never have that sort of career（職業(yè)）．

I wasn’t an excellent student because I didn’t do much schoolwork．In my final term I started thinking what I might do and found I didn’t have much to offer．I just accepted that I wasn’t the type to have a career．

I then found myself a job．Looking after two little girls，It wasn’t too bad at first．But the problems began when I agreed to live in，so that I would be there if my boss had to go out for business in the evening．We agreed that if I had to work extra hours one week，she’d give me time off the next．But unfortunately，it didn’t often work out．I was getting extremely tired and fed up，because I had too many late nights and early mornings with the children．

One Sunday，I was in the park with the children，and met Megan who used to go to school with me，I told her about my situation．She suggested that I should do a course and get a qualification（資格證書）if I wanted to work with children．I didn’t think I would be accepted because I didn’t take many exams in school．She persuaded me to phone the local college and they were really helpful．My experience counted for a lot and I got on a part – time course．I had to leave my job with the family，and got work helping out at a kindergarten．

Now I’ve got a full – time job there．I shall always be thankful to Megan．I wish I had known earlier that you could have a career，even if you aren’t top of the class at school．

1.What is the author’s present job？

A．Working part – time in a college．

B．Taking care of children for a family．

C．Helping children with their schoolwork．

D．Looking after children at a kindergarten．

2.When staying with the two girls’family，the author__________．

A．was paid for extra work

B．often worked long hours

C．got much help from her boss

D．took a day off every other week

3.Why did the author leave her first job？

A．She found a full – time job．

B．She was fed up with children．

C．She decided to attend a part – time course．

D．She needed a rest after working extra hours．

4.What has the author learned from her own experiences？

A．Less successful students can still have a career．

B．Qualifications are necessary for a career．

C．Hard work makes an excellent student．

D．One must choose the job she likes．

查看答案和解析>>

同步練習(xí)冊答案