we may spend an all night studying before an important exam．We'll most probably rush to rescue a broken down friend in the middle of the nigh， 1. All that can leave you feeling unsure of how you're going to survive the day ahead．If you would like some helpful tips on how to stay alert，read on to find out more：

．Nap

This may seem obvious but it goes without saying that the antidote（解藥）to tiredness is sleep. 2.

According to Dr David Dinges，editor of the journal SLEEP，a nap as short as 10minutes can be of benefit to you by moving the brain into slow-wave‘sleep．According to ranges，sleeping for longer than 40 minutes could leave you feeling slightly groggy(昏沉) upon waking，but this will soon wear off. 3.

. 4.

Though this is not a long term solution it does do the trick temporarily．The average person needs around 100-200 milligrams of caffeine.5. The benefits will last for around three to four hours．

A.Caffeine doesn't work．

B．Drink caffeinated drinks．

C．Lack of sleep is becoming more and more common in our society．

D．If you haven't got time for 8 hours then try taking a short nap instead．

E．It will take around 15 to 30 minutes for it to come into effect．

F．Occasionally we are just unable to sleep because of anxiety．

G．You will feel sharper after that．

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：2014-2015學(xué)年湖南岳陽(yáng)一中高三10月第二次月考英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

Those _____ cannot answer all three riddles will be condemned to death.

A. that B. who

C. which D. what

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014-2015學(xué)年湖南長(zhǎng)沙市等十三校高三第二次聯(lián)考英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

It is not your grades but the attitude to your course matters.

A．that B．one C．what D．it

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014-015學(xué)年新疆兵團(tuán)農(nóng)二師華山中學(xué)高二下期末英語(yǔ)試卷（解析版） 題型：閱讀理解

At thirteen, I was diagnosed（診所） with kind of attention disorder. It made school difficult for me. When everyone else in the class was focusing on tasks, I could not.

In my first literature class, Mrs.Smith asked us to read a story and then write on it, all within 45 minutes. I raised my hand right away and said,”Mrs.Smith, you see, the doctor said I have attention problems. I might not be able to do it.”

She glanced down at me through her glasses, “you are no different from your classmates, young man.”

I tried, but I didn’t finish the reading when the bell rang. I had to take it home.

In the quietness of my bedroom, the story suddenly all became clear to me. It was about a blind person, Louis Braille. He lived in a time when the blind couldn’t get much education. But Louis didn’t give up. Instead, he invented a reading system of raised dots（點(diǎn)）, which opened up a whole new world of knowledge to the blind.

Wasn’t I the “blind” in my class, being made to learn like the “sighted” students? My thoughts spilled out and my pen started to dance. I completed the task within 40 minutes. Indeed, I was no different from others; I just needed a quieter place. If Louis could find his way out of his problems, why should I ever give up?

I didn’t expect anything when I handled in my paper to Mrs.Smith, so it was quite a surprise when it came back to me the next day- with an ”A” on it. At the bottom of the paper were these words:”See what you can do when you keep trying?”

1.The author didn’t finish the reading in class because.

A. He was new to the class

B. He was tried of literature

C. He had an attention disorder

D. He wanted to take the task home

2.What do we know about Louis Braille from the passage?

A. He had good sight

B. He made a great invention.

C. He gave up reading

D. He learned a lot from school

3.What was Mrs.Smith’s attitude to the author at the end of the story?

A. Angry B. Impatient

C. Sympathetic D. Encouraging

4.What is the main idea of the passage?

A. The disabled should be treated with respect.

B.A teacher can open up a new world to students.

C. One can find his way out of difficulties with efforts.

D. Everyone needs a hand when faced with challenges.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2016屆江西余江第一中學(xué)高三上模擬2英語(yǔ)試卷（解析版） 題型：短文改錯(cuò)

短文改錯(cuò) (共10分;每小題1分,滿分10分)

假定英語(yǔ)課上老師要求同桌之間交換修改作文，請(qǐng)你修改你同桌寫(xiě)的以下短文。短文中共有10處錯(cuò)誤，每句中最多有兩處。錯(cuò)誤涉及一個(gè)單詞的增加、刪除或修改。

增加：在缺詞處加一個(gè)漏字符號(hào)(∧), 并在此符號(hào)下面寫(xiě)出該加的詞。

刪除：把多余的詞用斜線（＼）劃掉。

修改： 在錯(cuò)的詞下劃一橫線, 并在該詞下面寫(xiě)出修改后的詞。

注意：1、每處錯(cuò)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(jì)分。

About one year before, we got a lovely cat named Dexter. He enjoys watching my elderly neighbor in her garden. Although he won’t let her to touch him, he always keeps an eye on her.

One afternoon I heard Dexter calling strange. When I reached the door to check on him, his calling stops, so I headed back to kitchen. Just as I did, his calling started again. I stepped outside to find Dexter sit next to my elderly neighbor who had fallen. He didn’t have the strength to get up and shout for help. Dexter didn’t leave her sides until help arrived. With Dexter, she might not have been found in time.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2014-2015學(xué)年福建福州第八中學(xué)高二下期末英語(yǔ)試卷（解析版） 題型：單項(xiàng)填空

Our teachers often encourage us that every minute we spend on studying will finally _______ in the near future.

A. run out B. go off C. come out D. pay off

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2016屆海南文昌中學(xué)高三上學(xué)期期末英語(yǔ)試卷（解析版） 題型：書(shū)面表達(dá)

書(shū)面表達(dá)

目前，中國(guó)已經(jīng)進(jìn)入汽車(chē)社會(huì)，越來(lái)越多的汽車(chē)正走進(jìn)尋常百姓家。但是有些駕駛員的素質(zhì)令人擔(dān)憂，他們的所作所為嚴(yán)重危害了自己和他人的安全。這種現(xiàn)象與社會(huì)的發(fā)展極不協(xié)調(diào)。請(qǐng)你以李華的身份，結(jié)合下列幾點(diǎn)寫(xiě)一封倡議書(shū)，倡議所有駕駛員做“中國(guó)好司機(jī)”。

主要內(nèi)容包括：

1. 簡(jiǎn)單描述以上現(xiàn)象；

2. 你的建議：

1）嚴(yán)格遵守交通規(guī)則；

2) 不隔窗拋物；

3) 禮讓他人,不闖紅燈。

注意：1. 詞數(shù)100左右

2. 可以適當(dāng)增加細(xì)節(jié)，以使行文連貫；

3. 開(kāi)頭和結(jié)尾已給出，不計(jì)入總詞數(shù)。

參考詞匯：規(guī)則 regulations 讓路give way to ; 闖紅燈run the red light

Dear drivers,

At present, more and more cars have entered the homes of ordinary people.

Sincerely yours,

Li Hua

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2015-2016學(xué)年湖北沙中學(xué)高二下第一次半月考英語(yǔ)試卷（解析版） 題型：閱讀理解

Scientists at Harvard University have recycled a kidney(‘腎)-in a rat. The researchers removed a kidney from a dead rat. Later, the renewed kidney was put into a living rat. It wasn't perfect. It did, however, show signs of working like a kidney should.

"It's really beautiful work," Edward Ross, a kidney researcher at the University of Florida in Gainesville, told Science News. He didn't work on the new study.

Kidneys are bean-shaped and act like guards in the body. They clean the blood by removing waste and extra water. Every day, an adult's kidneys filter(過(guò)濾) enough blood to fill a bathtub half full. Along the way, they produce eight cups of urine(尿) from that waste and water. When a person's kidneys fail, all of that waste stays in the body. Such patients can quickly become very sick and die, unless they are regularly connected to a machine that filters their blood.

At any given time, about 100,000 people in the United States are waiting for a replacement kidney. But healthy donated kidneys are difficult to get. Either a living person must donate one, or a kidney must be removed from someone who just died and earlier had agreed to the donation. In either case, people receiving new kidneys face the risk that their bodies will reject the donated ones.

But there may be another option. Researchers use knowledge of living things to grow or improve tissue that can aid human health. Harald Ott's team at Harvard started with a "used" kidney.

Scientists added kidney cells from rats and blood vessel cells from people to the matrix（母體）. These cells attached themselves and began to multiply. Before long, they formed new kidney tissue.

The scientists placed this renewed kidney into another rat. There it produced a small amount of urine. This experiment shows that the lab-grown kidney can do at least some of the work performed by a healthy kidney.

The results are a promising first step toward helping people with serious kidney problems. "This is still very early, but they've come a long way," Ross said.

1.What can we infer from Paragraph l?

A. Biology is a new and helpful science.

B. It's hard to put the rebuilt kidney into the rat.

C. Kidneys are very important to our life.

D. A used kidney may be recycled for new life.

2.What does Paragraph 3 mainly talk about?

A. The relationship between kidneys and health.

B. The difficulty of curing serious kidney diseases.

C. The function and importance of kidneys.

D. The methods of curing kidneys diseases.

3.For what purpose does the author use the figure 100,000 in Paragraph 4?

A. To stress used kidneys are hard to get.

B. To show the great need for healthy kidneys.

C. To explain many American people get kidney diseases.

D. To call on people to donate kidneys.

4.Which of the following is true according to the text?

A. The scientists are satisfied with the result of the experiment.

B. Ross is a kidney expert who is involved in the experiment.

C. The function of the renewed kidney is the same as a healthy kidney.

D. The renewed kidney produced a great deal of urine.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：2015-2016學(xué)年吉林大學(xué)附中高二上學(xué)期期末英語(yǔ)試卷（解析版） 題型：其他題

單句翻譯

1.正是人類的活動(dòng)導(dǎo)致全球變暖。(強(qiáng)調(diào)句型)

_________________________________________________________________________________

2.沒(méi)有警察的允許，誰(shuí)也不許離開(kāi)這棟樓。(be + to do)

_________________________________________________________________________________

3.我只有找到工作才能弄到足夠的錢(qián)繼續(xù)大學(xué)學(xué)業(yè)。(倒裝)

_________________________________________________________________________________

4.簡(jiǎn)一進(jìn)來(lái)， 就大哭起來(lái)。(the instant)

_________________________________________________________________________________

5.今晚他們很有可能在外露營(yíng)了。(it is likely that)

_________________________________________________________________________________

6.只要你在使用電燈，你就可以開(kāi)著它。 (so long as)

_________________________________________________________________________________

7.如果我會(huì)畫(huà)畫(huà)，我會(huì)畫(huà)一張畫(huà)給你。(虛擬語(yǔ)氣)

_________________________________________________________________________________

8.學(xué)了這么多年的漢語(yǔ)，我依然認(rèn)為它很美。（v-ing作狀語(yǔ)）

_________________________________________________________________________________

9.與工廠里其他工人相比，他是幸運(yùn)的。(過(guò)去分詞作狀語(yǔ))

_________________________________________________________________________________

10.他發(fā)現(xiàn)忍受噪音很困難。(it作形式賓語(yǔ))

_________________________________________________________________________________

查看答案和解析>>

同步練習(xí)冊(cè)答案