Los Angeles Times reported that researchers may have found a way to ______ human life by changing certain genes, so that humans might expect to live twice as long.

A. extend B. preserve

C. multiply D. transform

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語(yǔ) 來(lái)源：2016屆浙江嘉興市高三上能力測(cè)試英語(yǔ)試卷（解析版） 題型：書(shū)面表達(dá)

假設(shè)你是李越，請(qǐng)給張老師(Mr. / Ms. Zhang)寫(xiě)一封100-120個(gè)詞的英文信。根據(jù)你的情況，告訴老師你希望在英語(yǔ)寫(xiě)作方面得到幫助。你可以希望老師著重糾正語(yǔ)言錯(cuò)誤，也可以希望老師在作文結(jié)構(gòu)方面給予指導(dǎo)，并說(shuō)明你的理由。

注意：1. 信的抬頭與落款已給出（不計(jì)入詞數(shù)）；

2. 不得以任何形式透露地區(qū)、學(xué)校、姓名等真實(shí)信息。否則，視為考試作弊。

Dear Mr. / Ms. Zhang,

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

Yours sincerely,

Li Yue

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2016屆山東萊州第一中學(xué)高三上學(xué)期第一次質(zhì)檢英語(yǔ)試卷（解析版） 題型：完形填空

閱讀下面短文，掌握其大意，然后從各題所給的A、B、C、D四個(gè)選項(xiàng)中，選出最佳選項(xiàng)。

An artist in Oakland,California is using his skills to ________ the homeless．GregKloehn builds very smallshelters that mare life on the streets a little more ________．The structures offerthe homeless some safety and ________ from bad weather．Each little house alsohas ________ on the bottom so itgo wherever its ________ goes.

Greg Kloehn has ________atleast 20tinyhouses. Ona recent day，Mr.Kloehn stops at one to________ Oscar Young．Thetwomen ________ ．

“I like to help them．Sure．I mean it's________for me．，l like to make things，and do something that makesabig________on someone'slife．”

Insidehislittle shelterMr．Youndgets ________from cold nightsonthe streets．

“Well，it is________than living on the ground，to tell you the truth，because if it was________for Greg，I would be________on the ground．”

Mr．Kloehn also visits Sweet-Pea，another friend who________ lives in one of the little homes the artist ________ .Shesays it．keeps her________ and protectsherbeaongings．

Sheila Williams says she has learned to live withless．“I’m living in one ofGreg’s houses，and I am________to thatman．”

TheKloehnhomeownershave ________wood andotherfound materialsforfuturebuildingefforts．

Don’t miss doing any good thing no matter how insignificant it looks．Although the roomsMr．Kloehn donated aren’t big，they make a big ________to them homeless people’s life．

1.A．a(chǎn)sk B．help C．protect D．raise

2.A．wonderful B．beautiful C．hard D．comfortable

3.A．protection B．a(chǎn)ction C．function D．decoration

4.A．ropes B．chains C．wheels D．1egs

5.A．owner B．designer C．builder D．renter

6.A．given away B．given up． C．given back D．given out

7.A．thank B．invite C．praise D．visit

8.A．quarrel B．fight C．a(chǎn)rgue D．hug

9.A．fun B．dull C．meaningless D．boring

10.A．decision B．impact C．difference D．effort

11.A．happiness B．relaxation C．relief D．excitement

12.A．better B．more expensive C．cheaper D．worse

13.A．not B．a(chǎn)lways C．a(chǎn)lready D．ever

14.A．never B．a(chǎn)lmost C．just D．still

15.A．a(chǎn)lso B．too C．either D．a(chǎn)s well

16.A．rented B．built C．bought D．repaired

17.A．free B．safe C．convenient D．calm

18.A．polite B．rude C．respectful D．thankful

19.A．collected B．robbed C．borrowed D．stolen

20.A．difference B．contribution C．progress D．decision

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2015-2016學(xué)年江西鷹潭第一中學(xué)高一11月月考英語(yǔ)試卷（解析版） 題型：信息匹配

根據(jù)短文內(nèi)容，從短文后的選項(xiàng)中選出能填人空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。

Choosing to Study Overseas

Every year, thousands of students choose to study in another country for a semester, the summer, or a year. Studying overseas can be an exciting experience for many people.

1.

Living in another country can help you to learn a language, and about another culture.

2. Overseas study may also look good on your future resume. Many companies today want employees who speak a second language, or have experienced living or working in another country.

Making the right choice

Once you decide to study overseas, you have to make some choices. To choose the right country or school. Ask yourself: Where do I want to go and why? How much do I want to pay? 3. Do I want to live with a host family, with roommates, or alone?

Getting ready to go

Get your passport and visa early! 4. Learn about the money. Bring some of it, and a credit card, with you.

Once you are there

After the first few weeks overseas, many students will feel a little homesick. They may miss their family, friends, and familiar ways of doing things. 5. When you feel sad or homesick, try to talk to others, or write about your feelings in a notebook.

A．Large number of students can’t afford to study overseas.

B．You should improve your mother tongue before you go.

C．Why do it?

D．How long do I want to study overseas?

E. Remember that it takes time to get used to a new place, school, and culture.

F. You will see the world in a new way, and learn more about yourself.

G. Before you go, learn some of the language, and read about some common customs in your host country.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014-2015學(xué)年湖北省襄陽(yáng)市高三第一次調(diào)研考試英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

The shooting death of Michael Brown， an 18-year-old black man， who was fatally shot by a police officer， has _____ a media firestorm across the US since Aug 9．

A．set up B．set out C．set aside D．set off

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014-2015學(xué)年湖北省八校高三下學(xué)期第二次聯(lián)考英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

The video, Under the Dome, has rapidly pushed the public______ about air pollution and encouraged people to join in efforts to make a difference.

A. analysis B. imagination

C. awareness D. argument

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)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(yǔ)試卷（解析版） 題型：閱讀理解

B 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(shū)）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>>

科目：高中英語(yǔ) 來(lái)源：2016屆山西山西大學(xué)附屬中學(xué)高三10月月考英語(yǔ)試卷（解析版） 題型：閱讀理解

Man still has a lot to learn about the most powerful and complex part of his body — the brain.

It may be surprising to learn that it isn’t age that makes you lose your memory. The reason could be that you have a "lazy" memory, not an old one. Like your body your memory improves with exercise. Once given plenty of exercise, the brain keeps its power. Before discussing how to improve the memory, let’s look at how the brain works. There are two sides to the brain, the left and the right. The right side deals with the senses (what we see, hear, feel and smell). It's the creative and imaginative side. The left side is concerned with logic. It analyzes information and puts it in order.

Some recent research suggests that we remember everything that happens to us. The problem most of us has is recalling events. Most forgetting takes place immediately after learning. An hour after learning something new, more than 50% has been forgotten. After a month, 80% has been forgotten, and so on.

This shows revision is very important. If you revise new material you have learnt, you remember much more. So it's of vital importance to revise newly learned material often, and have frequent breaks. We best remember what we learn at the beginning of a learning period and at the point where we stop. After the break, revise what was learned before the break and then continue learning the new material. These breaks should happen every 20 or 45 minutes.

Other experiments have shown the brain needs time to "digest" what has been learned. The time necessary for this is 5 to 10 minutes. After the break, the memory will have absorbed what it has just learned, and more will be remembered. During this period it is important to exercise the right side of the brain, because the left side is used during the learning period. Therefore you should relax. Listening to music, breathing in fresh air, and looking at a picture are all ways of using the other side of the brain. So when you are studying alone, make a plan which shows when to have breaks and to revise newly learned material immediately before you begin studying again. If you do in this way, your memory will improve.

1.According to the text, you lose your memory by ________.

A. getting too old B. hardly using your brain

C. working too hard D. using your brain too much

2.To fight forgetting effectively, we're advised to ________.

A. go back to what was learned regularly

B. break down materials into small pieces

C. focus on both ends of a learning period

D. take breaks to give the brain a good rest

3. During the learning process the brain need breaks to ________.

A. use the right side of the brain

B. revise newly learnt materials

C. take in what has been learnt

D. relax the left side of the brain

4.Where is this text most probably taken from?

A. Science fictions. B. Students’ literature.

C. An advertisement. D. A science report.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2016屆遼寧省高三上學(xué)期第二次月考英語(yǔ)試卷（解析版） 題型：書(shū)面表達(dá)

作文（共1小題）

假設(shè)你叫李華，是一名高三學(xué)生。自從進(jìn)入高三以后，你發(fā)現(xiàn)部分同學(xué)晚上學(xué)習(xí)到很晚。他們邊學(xué)習(xí)邊吃零食或喝可樂(lè)，早上則由于起床太晚而不吃早餐，你感覺(jué)這樣會(huì)對(duì)身體有害。請(qǐng)你根據(jù)這種現(xiàn)象給《英語(yǔ)周報(bào)》寫(xiě)一封信反映上述情況，并談?wù)勛约旱南敕ā?/p>

注意：(1) 可根據(jù)內(nèi)容需要適當(dāng)增加細(xì)節(jié)，以使行文連貫；

(2) 詞數(shù)：100左右。

Dear Editor,

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

Yours faithfully,

Li Hua

查看答案和解析>>

同步練習(xí)冊(cè)答案