The universe looks like a pretty quiet place to live. But the universe is filled with dangerous things, all struggling to be the one to wipe us off the planet. Happily for us, they’re all pretty unlikely, but if you wait long enough, one of them is certain to get us. But which one?

1. Death by Asteroid (小行星)

Of all the ways we might meet our untimely death, getting wiped out by an asteroid is the most likely. Why? Because we sit in a universal shooting gallery, with 100 tons of material hitting us every day. The problem, though, occurs every few centuries when something big this way comes. If you could ask a dinosaur, I’d imagine they would tell you to take this seriously.

2. Death by Exploding Star

When a huge star ends its life, it does so with a bang, which sends death spreading across space in the form of high-energy radiation. Many studies show that the bang would have to be closer than about 75 light years to do us any harm. The good news: no stars so close are able to do the deed.

3. Death by Dying Sun

The sun is important to us; without it, we’d freeze. But the sun is also middle-aged, already halfway to running out of fuel, expanding into a red giant, and cooking us to a fine crisp. Even long before then, it’ll warm up enough to raise our average temperature and cause a runaway greenhouse effect, boiling our oceans.

Happily, that’s a long time from now.

4. Death by Black Hole

Black holes are misunderstood. They don’t wander the galaxy looking for tasty snacks in the form of planets and stars; they turn around the Milky Way just like the hundreds of billions of other stars do. But it’s possible that one could wander too close to us. If it did, planetary paths would be disturbed, causing the Earth to drop into the sun or be thrown out into deep space.

Given that it could be trillions of years or more before even that happens, we don’t have to worry too much about black holes.

My advice? Go outside, look up, enjoy the sun, the moon, and the stars. They may be there forever as far as any one of us is concerned...and forever is a long, long time.

1.The underlined word “this” probably refers to ________.

A. getting wiped out by a dinosaur

B. an untimely death

C. a cosmic shooting gallery

D. 100 tons of material

2.Which of the following will cause the earth’s average temperature to go up dramatically?

A. The dying sun.B. The black hole.

C. The asteroid.D. The exploding star.

3.Which of the following statement is possible about black holes?

A. They wander the galaxy.

B. One of them wanders very close to the earth.

C. They turn around the galaxy.

D. They look for planets and stars.

4.While the author is introducing the ways the universe could wipe out humankind, he is ________ us.

A. warningB. comfortingC. entertainingD. ignoring

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：2016-2017年安徽師大附中高二上第二次月考10月英語卷（解析版） 題型：單項填空

Susan was determined to work hard at her lessons this term to ________ the expectations of her parents.

A. live up toB. come up to

C. get down toD. look forward to

查看答案和解析>>

科目：高中英語 來源：2017屆河北石家莊辛集中學(xué)高三上期中考試英語試卷（解析版） 題型：書面表達

假設(shè)你是高中生李華，你校校園網(wǎng)招收英文網(wǎng)絡(luò)編輯（web editor），請根據(jù)以下提示，用英語向外籍主編Chris申請這一職位。要點包括：

1. 關(guān)心時事，對新聞工作感興趣；

2. 有做校刊記者的工作經(jīng)歷；

3. 擅長英語，曾獲校英語寫作大賽一等獎。

注意：

1. 詞數(shù)不少于100；

2. 可適當增加細節(jié)，以使行文連貫；

Dear Chris,

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

Yours,

Li Hua

查看答案和解析>>

科目：高中英語 來源：2016-2017學(xué)年湖南湘潭縣一中高二上期中考試英語試卷（解析版） 題型：七選五

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

One of the common complaints we hear from the people around us are problems they are facing. Every day and everywhere there are problems. Many times we find it hard to stay happy. When one problem is solved, another one comes up. How to solve them? The answer is that we must equip ourselves to deal with different kinds of worries by learning the three basic steps of problem analysis. The three steps are:

Get the facts

Why is it so important to get the facts? Unless you have the facts, you can’t possibly attempt to solve your problem intelligently. Without the facts, all you can do is wondering around in confusion. It is not an easy job to get facts. When you are worried, your emotions are riding high. 1.

When trying to get the facts, you can pretend that you are collecting this information not for yourself but for some other person. 2. You can also pretend that you are a lawyer preparing to agree. Try to get all the facts both on your side and the other side of the case. You will generally find the truth lies somewhere in between.

3.

Whenever you are worried, write down the questions that make you worry. And write out all the various steps you could take and then the probable consequences of each step. For example, what am I worrying about? What can I do about it? Here is what I’m going to do about it. After carefully weighing all the facts, you can calmly come to a decision.

Act on that decision.

4. How can you break the worry habit before it breaks you? Crowd worry out of your mind by keeping busy. Plenty of action is one of the best ways to cure worry.

5. If you know a situation is beyond your power, say to yourself: “It is so; it can’t be otherwise.” Don’t permit little things to ruin your happiness. Try to cultivate a mental attitude that will bring you peace and happiness.

A. Analyze the facts.

B. Accept what can’t be avoided.

C. Decide how much anxiety a thing may be worth.

D. This will help you to take a cold and fair view of the evidence.

E. There comes a time when you must decide and never look back.

F. But here are two ideas that can help you see the facts in a clear and objective way.

G. Unless you take your action, all your fact-finding and analysis is a sheer waste of energy.

查看答案和解析>>

科目：高中英語 來源：2016-2017學(xué)年湖北武漢二中高二上期中考試英語試卷（解析版） 題型：語法填空

The warm weather outside may look perfect for outdoor exercise. But for those who are not that sporty, 1. could be nicer than having relaxing afternoon tea with a few good friends and taking 2. break?

But are you familiar with the culture of afternoon tea—its origins, what 3. (include), and the proper etiquette (禮儀)? We sum up a few things you need to know about this traditional English custom so that you can enjoy it 4. (much).

While the tradition of 5. (drink) tea dates back to about 3,000 BC in China, it was not until the mid-17th century 6. the concept of “afternoon tea” first appeared in the UK. In 1840, Anna Maria Russell, the seventh Duchess of Bedford, started to ask for a tea tray 7. butter, bread and cakes at 4 pm every day, as she found she was hungry at this time every day and the evening meal in her household was served 8. (fashion) late at 8 pm. She found this new habit difficult 9. (break) and soon invited other ladies in society to join her. This pause for tea quickly became a popular social event. In the 1880s, women of upper class and society would put on gowns, 10. (glove) and hats for their afternoon tea.

查看答案和解析>>

科目：高中英語 來源：2017屆山東菏澤一中高三上第二次月考英語試卷（解析版） 題型：完形填空

閱讀下面短文，掌握其大意，從短文后所給的四個選項（A、B、C和D）中，選出可以填入空白處的最佳選項，并在答題卡上將該項涂黑。

Years ago a professor gave a group of graduate students this assignment：Go to the slums(貧民窟)．Take 200 boys between the ages of 12 and 16, investigate their ________ and environment and then ________ their chances for the future. The students，after ________ social statistics，talking to the boys and compiling(匯編) much data, ________ that 90 percent of the boys would spend some time in ________.

Twenty?five years later another group of graduate students were given the job of ________ the previous prediction. They went back to the ________ area. Some of the boys—now ________ —were still there，a few had died and some has moved away. But they managed to ________ 180 of the original 200. They found that only four of the boys had ever been sent to prison.

Why was it that these men，who had lived in a breeding place of ________，had such surprisingly ________ record？The researchers were ________ told. “Well，there was a ________.”

They investigated ________ and found that in 78 percent of the ________ it was the same woman. The researchers went to the teacher，now living in a home for ________ teacher. How had she had this remarkable ________ on that group of children？Could she give them any reason why these boys ________ her？“No，”she said，“I really couldn't.” And then，________ over the years，she said musingly(沉思地)，more to herself than to her questioners，“I ________ these boys.” The researchers finally realized that it was the teacher's care that made a difference.

1.A. safetyB．nationalitiesC．healthD. backgrounds

2.A. adviseB．increaseC．predictD．check

3.A. consultingB．preparingC．offeringD．showing

4.A. discussedB．concludedC．introducedD．expected

5.A. businessB．schoolC．hospitalD．prison

6.A. testingB．explainingC．findingD．making

7.A. specialB．sameC．onlyD．lonely

8.A. workersB．teenagersC．menD．students

9.A. recordB．findC．knowD．trace

10.A. diseaseB．magicC．disasterD．crime

11.A. reliableB．goodC．detailedD．bad

12.A. normallyB．graduallyC．continuallyD．nearly

13.A. teacherB．doctorC．directorD．friend

14.A. tooB．insteadC．a(chǎn)lreadyD．further

15.A. casesB．mannersC．statesD．ways

16.A. determinedB．well-knownC．retiredD．skilled

17.A. techniqueB．influenceC．courageD．a(chǎn)dvantage

18.A. rememberedB．rewardedC．treatedD．frightened

19.A. looking aroundB．going on

C．working outD．thinking back

20.A. persuadedB．remindedC．lovedD．taught

查看答案和解析>>

科目：高中英語 來源：2017屆山東德州市高三10月模塊測試英語試卷（解析版） 題型：短文改錯

假定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。錯誤涉及一個單詞的增加，刪減或修改。

增加； 在缺詞處加一個漏字符號（∧），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. 每處錯誤及其修改的均僅限一詞。

2. 只允許修改10處，多者（從第11處起）不計分。

Trying to come to a decision complete on your own can be risky. Some decisions are very important that they shouldn’t made without talking to others first. There have several advantages if you consult the persons you trust. For one thing, they can give you valuable advice and they may point out some things you may have been overlooked. For another, friends may stop you from making big mistakes.

When consult others about important decisions, you should keep two things on mind. The first one is that you need to find someone whom you respected enough to trust his or her judgment. The second thing to consider is how to do if you disagree with this person. Maybe turning to a third or fourth person for help is a good choice. In a word, making any big decision alone can lead to problems. Talking to friends or family members first are always a good idea.

查看答案和解析>>

科目：高中英語 來源：2017屆遼寧葫蘆島六校協(xié)作體高三上期初考試英語試卷（解析版） 題型：書面表達

隨著智能手機的普及，眾多解答習(xí)題答案的作業(yè)APP出現(xiàn)。（即拍下一道題上傳后，很快就會獲得答案的軟件。）越來越多的學(xué)生寫作業(yè)用此類軟件。請寫一篇英語短文，談?wù)勀銓@個現(xiàn)象的看法，要點如下：

優(yōu)點：提高效率，節(jié)省時間；遇到不會的問題可以及時得到解決

缺點：過分依賴此類軟件，不愿意思考問題等……

你的觀點：……

注意：1. 詞數(shù)100左右；

2. 開頭語已為你寫好；

3. 可適當增加細節(jié)，以使行文連貫。

Nowadays, more and more students do their schoolwork with the help of kinds of APPs via the Internet. ____________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

查看答案和解析>>

科目：高中英語 來源：2017屆甘肅天水一中高三上第二階段考試英語試卷（解析版） 題型：閱讀理解

Different kinds of soil conservation methods are used by farmers to protect their land from damage by farming and the forces of nature. One important form of soil conservation is the use of windbreaks.

Windbreaks are barriers (屏障) formed by trees and other plants with many leaves. Farmers plant them in lines around their fields. Windbreaks stop the wind from blowing soil away. They also keep the wind from destroying or damaging crops. They are very important for growing grains, such as wheat.

There have been studies done on windbreaks in parts of West Africa, for example. They found that grain harvests can be twenty percent higher in fields protected by windbreaks compared to fields without such protection.

However, windbreaks seem to work best when they allow a little wind to pass through. If the wall of trees and plants stops wind completely, then violent air motions will take place close to the ground. These motions will lift soil into the air where it will be blown away. For this reason, a windbreak is best if it has only sixty to eighty percent of the trees and plants needed to make a solid line.

There should be at least two lines in each windbreak. One line should be large trees. The second line, right next to it, can be shorter trees and other plants with leaves. Locally grown trees and plants are best for windbreaks.

1.What is a windbreak according to the passage?

A. A windbreak is a concrete wall to prevent the strong winds.

B. A windbreak is a wood with different kinds of trees.

C. A windbreak is a wall of trees to hold soil in place.

D. A windbreak is a wall of wind to fight wind from the opposite way.

2.When can windbreaks be most effective?

A. The trees are planted one by one.

B. The trees and plants grow in a line.

C. The trees grow as high as they can.

D. Windbreaks allow a little wind to blow through.

3.Which of the following statements is NOT true?

A. A windbreak is one of the best forms of soil conversation.

B. A windbreak is very good for growing grains such as wheat.

C. One line of trees is enough for soil protection.

D. Locally grown trees and plants are the top choice for a windbreak.

查看答案和解析>>

同步練習(xí)冊答案