In 1905, as part of his Special Theory of Relativity, Albert Einstein published the point that a large amount of energy could be released from a small amount of matter. This was expressed by equation E = me 2(energy = mass times the speed of light squared). But bombs were not what Einstein had in mind when he published this equation.

In 1929, he publicly declared that if a war broke out he would “refused to do war service, direct or indirect…” His position would change in 1933, as the result of Adolf Hitler’s coming into power in Germany.

Einstein’s greatest role in the invention of the atomic bomb was signing a letter to President Franklin Roosevelt urging that the bomb be built because some physicists feared that Germany might be working on an atomic bomb. Among those concerned were physicists Leo Szilard and Eugene Wigner. But Szilard and Wigner had no influence with those in power. So in July 1939 they explained the problem to someone who did: Albert Einstein. After talking with Einstein, in August 1939 Szilard wrote a letter to President Roosevelt with Einstein’s signature on it, which was delivered to Roosevelt in October 1939.

Germany has invaded Poland the previous month; the time was ripe for action. That October research of a-bomb began but proceeded slowly because the invention of the atomic bomb seemed distant and unlikely. In April 1940 an Einstein letter, ghost-written by Szilard, pressed the researchers on the need for “greater speed”.

As the realization of nuclear weapons grew near, Einstein looked beyond the current war to future problems that such weapons could bring. He wrote to his friend about his fear about the future use of the a-bomb.

The atomic bombings of Japan occurred three months after Germany gave in.

In November 1954, five months before his death, Einstein summarized his feelings about his role in the creation of the atomic bomb: “I made one great mistake in my life… when I signed a letter to President Roosevelt recommending that atom bombs be made; but there was some justification---- the danger that the Germans would make them”.

1.What can we learn about Szilard and Wigner?

A. They were not as influential as Einstein.

B. They were responsible for the invention of nuclear weapons

C. They had cheated their friend Albert Einstein.

D. They had an intention to destroy the world.

2. Einstein realized his mistake of ___________.

A. co-operating with his workmates

B. inventing the atomic bomb

C. publishing his equation

D. signing the letter to President Roosevelt

3. We can conclude that Einstein ___________.

A. was important in the development of atomic bomb

B. was not involved in the invention of atomic bomb

C. directly participated in the invention of the atomic bomb

D. helped with the invention of atomic bomb

4. Why did Einstein suggest making atom bombs?

A. Because President Roosevelt asked to do so.

B. Because it was likely that Hitler would make them.

C. Because it was not in favor of President Roosevelt.

D. Because it was not necessary to do so.

5.The best title for the passage would be __________.

A. A Story of Albert Einstein

B. Albert Einstein and the Atomic Bomb

C. It was Unfair for Einstein

D. How the Atomic Bomb was Invented

練習冊系列答案
相關習題

科目:高中英語 來源:2016-2017學年黑龍江牡丹江一中高一上期中考英語卷(解析版) 題型:單項填空

It is the second time that he ________ late for school.

A. wasB. had beenC. has beenD. is

查看答案和解析>>

科目:高中英語 來源:2016-2017學年安徽銅陵一中高二上期中考英語卷(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。

How many ways are there to reach the state of being happy?

1. Happiness is not an aim, but a journey. If you seek for pleasure in the course of the journey, the course will become a destination, and what's more, it will be a prolonged, boundlessly beneficial destination for all your life.

2. 1. Remain standing here, seize the present moment, and you will be happy.

3. Happiness is mental before it is physical. 2. It is better to eat without meat than to have a load on your mind.

4. Happiness is the opposite of unhappiness. 3. Release yourself from the unhappy mood and you will be happy.

5. Happiness is a matter of giving; the more you give out, the more you will get back. Share your happiness with others and you will enjoy it more.

6. Happiness is a very strange thing. It will not turn up when you beckon it, call it, and solicit it. But when you pretend complete indifference, it will pay too much attention to you, learn close to you and live with you. 4.

7. 5. It is unwise as well as useless to try to keep it. You have got to keep on making new happiness, so that one happiness follows in the wake of another.

8. The greatest happiness you can gain is realizing that you are not necessarily in need of it.

A. In dealing with happiness, you should adopt the strategy of leaving it at large to understand it better.

B. The decline of one means the growth of the other.

C. When you meet everyone, try smiling to them.

D. The happy place is this place, and the happy moment is this moment.

E. Happiness is drifting from place to place.

F. Smiling is a gift that God gives us.

G. In order to be physically happy to the full, you must first feel at ease and be free of worry.

查看答案和解析>>

科目:高中英語 來源:2016-2017學年廣東實驗中學高二上期中考英語卷(解析版) 題型:完成句子

閱讀下面的句子,根據(jù)所給的中文翻譯和題目要求,用模塊五所學的短語或相關知識補全空缺的部分,使句子完整通順,每空1詞。

1. 值得稱贊的是,盡管時間有限,格林先生還是成功地組織了這次重要的慶典儀式。

_________ ________ _________, Mr. Green managed to get the important ceremony _________ even if the time is so limited.

2. 當這只小狗感到害怕時,它就會躲到床底下。(省略句)

___________ ____________, the little dog will hide away under the bed.

3. 由于課外活動占用了大量的時間,她無法集中精力學習,而這次考試不及格則歸咎于此。

With after-class activities __________ __________ most of her time, she couldn’t _________ ___________ her study, which was __________ __________ for the failure in the exams.

4. 將垃圾進行分類處理不僅有利于環(huán)境保護,還將對節(jié)約自然資源產(chǎn)生積極的影響。

_________ __________ ___________ the disposal of categorizing(分類) rubbish beneficial to the protection of environment, but also it will _________ __________ ___________ to saving natural resources.

5.課文背誦考查 (每空字數(shù)不限)

The skin is an essential part of your body and its largest organ. You have three layers of skin (1) ________________________________________________. The functions of your skin are also very complex: it keeps you warm or cool; it prevents your body from losing too much water; it is (2)______________________________________________. So as you can imagine, if your skin get burned it can be very serious. First aid is a very important first step in the treatment of burns.

查看答案和解析>>

科目:高中英語 來源:2016-2017學年廣東實驗中學高二上期中考英語卷(解析版) 題型:單項填空

Out ___________ when the fire burst forth.

A. rushed they

B. did they rush

C. the children rushed

D. rushed the children

查看答案和解析>>

科目:高中英語 來源:2015-2016學年江西樂安縣一中高一下期中英語卷(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得最佳選項,選項中有兩個選項為多余選項。

How to stay in a good mood

It’s typical to feel your mood starting to become bad. If you want to be able to stay in a good mood, then you have to form these habits that will keep you feeling happy.

1. Don’t take love for granted.

If you’re lucky enough to have a special someone, then you should make your time together meaningful. 1.Make time to spend time with your special someone. Being around your loved one has been proven to make people happier.

2. Get regular exercise.

Regular exercise is one of the most important habits that you need to form. 2.You can go running three times a week and walk the other four. Just make sure to be as active as you can every day.

3. Spend time with your friends.

3. Of course, don’t always hang out with friends when you have a free moment. Make sure you do make time to see friends at least once or twice a week, if you can.

4. Get enough sleep.

4. One of the easiest ways to stay in a good mood is to be well-rested. Waking up feeling full of energy will make you feel much more ready to face the day and much more excited about everything ahead of you.

5. 5.

If you want to stay in a good mood, then you have to make sure that you eat three healthy and diverse meals every day. Start off with a healthy breakfast, and don’t skip this meal no matter what things happen. Have light snacks throughout the day, like yogurt or fruit, to keep you energetic.

A. Make sure that you sleep for 7-8 hours a day.

B. Have a healthy eating schedule.

C. Do begin with a healthy breakfast in the morning.

D. However, you don’t have to do the same boring old thing every day.

E. Once you start exercising, do the same sports at the regular time every day.

F. Don’t stop doing the things you love with the person you love.

G. Hanging out with friends will keep you feeling alive

查看答案和解析>>

科目:高中英語 來源:2015-2016年江西南昌八一中學等五校高二5月聯(lián)考英語卷(解析版) 題型:語法填空

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

A long, long time ago a little boy 1.________(walk) through a park. In the middle of the park there was a tree with a sign on it. The sign said “I am a magic tree. Say the magic words and you’11 will see.”

The boy tried to guess the magic words. He tried abracadabra (咒語), but 2._____ of them worked.

3._______ (exhaust), he threw 4._______(him) on the floor, saying: “please, dear tree!” and suddenly, a big door 5.________ (open) in the trunk. Inside everything was dark, except for a sign 6._______ said “Carry on with your magic."Then the boy said “Thank you, dear tree!" With this, the inside of the tree lit up 7._______(bright) and revealed a pathway 8._________(lead) to a great big pile of 9.________(toy) and chocolate.

The little boy brought all his friends to the magic tree, and they had the best party ever. This is 10._______ people always say that “please” and “thank you” are the magic words.

查看答案和解析>>

科目:高中英語 來源:2015-2016學年江西南昌二中高一下第二次月考英語卷(解析版) 題型:單項填空

Scientists are convinced ______ the positive effect of laughter ______ physical and mental health.

A. of;onB. by;in C. of;at D. on;at

查看答案和解析>>

科目:高中英語 來源:2016-2017學年江蘇南通中學高一上期中考試英語試卷(解析版) 題型:閱讀理解

◆The Big Cake Show comes to the WestPoint Arena in Exeter, England, March 21-22. Hopefully, cakes of all sizes will be on sale and on show. An impressive list of famous people sharing their great knowledge and skill includes Mary Berry, Paul Hollywood and Gregg Wallace. Tickets, from £12, are available online (bigcakeshow.com).

◆From January 17 to March 8, RHS Garden Wisley in Surrey, England has some special guests to brighten the winter: beautiful butterflies. The Glasshouse introduces a group of butterflies from other countries feeding on fruit and the juice-rich plants of the Exotic Zone. Tickets for adults are £13.20, for children are £6.60. For a family with 2 adults and 2 children, they should pay £32.75 in total. For groups of more than 10 adults, each should pay £10.80 (rhs. org.uk/wisley).

◆The week-long London Wine Week starts from May 18. Buy a £5 wristband to qualify for a pocket-sized guidebook and discounted wine around the capital. Partnering with London' s best bars and restaurants, we will be organizing events such as master classes and meet-the -maker time, plus offering discounts to wristband wearers (londonwineweek.com).

◆The World Shakespeare Festival begins in April, with everything from foreign productions of Shakespearean plays at Shakespeare's Globe to Shakespearean plays at the Royal Opera House. Plays will run until the end of the year in London, Birmingham, Newcastle and Gateshead. And there' s a programme of events such as director talks and family workshops. Prices start from £60 (worldshakespearefestival.org. uk).

1.We can infer that Paul Hollywood is most likely to be ________.

A. a ticket dealerB. the cake show host

C. the event organizerD. a professional cook

2.If you want to buy wine at lower prices, you should ________.

A. buy a wristband first

B. pay £5 for a discount card

C. eat in the specific restaurants

D. obtain a guidebook

3.Which of the following activities lasts for the longest time?

A. The Big Cake Show.

B. The World Shakespeare Festival.

C. Butterflies in the Glasshouse.

D. The London Wine Week.

查看答案和解析>>

同步練習冊答案