He told me his story in private,__________ nobody else knew what had happened to him.

A.butB.soC.whileD.or

 

B

【解析】

試題分析:句意:他私下里告訴了我他的經(jīng)歷,所以其他人不知道他發(fā)生過什么事。A但是;B因此;C當(dāng)……時(shí)候;D或者,否則。根據(jù)前后句內(nèi)容可知此處是因果關(guān)系,故答案選B。

考點(diǎn):考查連詞辨析。

 

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中英語 來源:2013-2014學(xué)年陜西省高三第七次適應(yīng)性訓(xùn)練英語試卷(解析版) 題型:單詞拼寫

根據(jù)下列各句句意和空白之后的漢語提示詞,在答題卡指定區(qū)域的橫線上寫出對(duì)應(yīng)單詞的正確形式,每空只寫一詞。

1.My English teacher told me that my handwriting needed _______.(提高)

2.Many _______ (科學(xué)家)from Beijing visited our school last Monday.

3.It is _______ (宣布)that new Paris fashions will be introduced into Xi’an.

4.Mrs. Smith led the lonely boy into the _______ (溫暖)of the house.

5.Are you _______(樂觀的)if you are facing the life of future?

6.The cut on my arm _______(流血)a lot when I was hurt yesterday.

7.We have a mild _______(氣候)in Vancouver.

8.The _______(頂)of the cars were broken in the accident.

9.Walking in the hot weather, I was _______(流汗)heavily.

10.Mr. Jones is sitting _______(舒服地)in the sofa, watching TV.

 

查看答案和解析>>

科目:高中英語 來源:2013-2014學(xué)年重慶市高三上學(xué)期第一次月考英語試卷(解析版) 題型:單項(xiàng)填空

Before stepping onto the stage of the Voice of China, the singer Yao Beina took a

deep breath to _____ her courage.

A. set up B. hold up

C. keep up D. take up

 

查看答案和解析>>

科目:高中英語 來源:2013-2014學(xué)年重慶市高三二診模擬英語試卷(解析版) 題型:單項(xiàng)填空

-- Has he apologized for his rudeness?

-- __________ .

A.No doubtB.No luckC.Not yetD.Not exactly

 

查看答案和解析>>

科目:高中英語 來源:2013-2014學(xué)年重慶市高三二診模擬英語試卷(解析版) 題型:單項(xiàng)填空

-- Mum,can I go on a holiday with my classmates this summer vacation?

-- OK.You __________ have a chance if you get along well with your studies.

A.couldB.shallC.mightD.must

 

查看答案和解析>>

科目:高中英語 來源:2013-2014學(xué)年重慶市高三4月月考英語試卷(解析版) 題型:閱讀理解

Most people know precious gemstones (寶石) by their appearances. An emerald flashes deep green, a ruby seems to hold a red fire inside, and a diamond shines like a star. It’s more difficult to tell where the gem was mined, since a diamond from Australia or Arkansas may appear the same to one from the Democratic Republic of the Congo. However, recently, a team of scientists has found a way to identify a gemstone’s origin.

Beneath the surface of a gemstone, on the tiny level of atoms and molecules, lie clues to its origin. At this year’s meeting of the Geological Society of America in Minneapolis, Catherine McManus reported on a technique that uses lasers to clarify these clues and identify a stone’s homeland. McManus directs scientific research at Materialytics, in Killeen, Texas. The company is developing the technique. “With enough data, we could identify which country, which mining place, even the individual mine a gemstone comes from,” McManus told Science News.

Some gemstones, including many diamonds, come from war-torn countries. Sales of those “blood minerals” may encourage violent civil wars where innocent people are injured or killed. In an effort to reduce the trade in blood minerals, the U.S. government passed law in July 2010 that requires companies that sell gemstones to determine the origins of their stones.

To figure out where gemstones come from, McManus and her team focus a powerful laser on a small sample of the gemstone. The technique is called laser-induced breakdown spectroscopy. Just as heat can turn ice into water or water into steam, energy from the laser changes the state of matter of the stone. The laser changes a miniscule part of the gemstone into plasma, a gas state of matter in which tiny particles called electrons separate from atoms.

The plasma, which is superhot, produces a light pattern. (The science of analyzing this kind of light pattern is called spectroscopy.) Different elements produce different patterns, but McManus and her team say that gemstones from the same area produce similar patterns. Materialytics has already collected patterns from thousands of gemstones, including more than 200 from diamonds. They can compare the light pattern from an unknown gemstone to patterns they do know and look for a match. The light pattern acts like a signature, telling the researchers the origin of the gemstone.

In a small test, the laser technique correctly identified the origins of 95 out of every 100 diamonds. For gemstones like emeralds and rubies, the technique proved successful for 98 out of every 100 stones. The scientists need to collect and analyze more samples, including those from war-torn countries, before the tool is ready for commercial use.

Scientists like Barbara Dutrow, a mineralogist from Louisiana State University in Baton Rouge, find the technique exciting. “This is a basic new tool that could provide a better fingerprint of a material from a particular locality,” she told Science News.

1.We learn from Paragraph 1 that __________________.

A. an emerald and a ruby are names of diamonds.

B. it’s not difficult to tell where the gem was mined.

C. appearances help to identify the origin of gemstones.

D. diamonds from different places may appear the same.

2.Why did the U.S. government pass law that requires companies selling gemstones to determine the origins of their stones?

A. To look for more gemstones.

B. To encourage violent civil wars.

C. To reduce the trade in blood minerals.

D. To develop the economy.

3.Which of the following facts most probably helps McManus and her team in identifying the origin of stones?

A. Heat can turn ice into water or water into steam.

B. Gemstones from the same area produce similar light patterns.

C. Laser can changes a miniscule part of the gemstone into plasma.

D. Materialytics has already collected patterns from thousands of gemstones.

4.From the last two paragraphs, what can be inferred about the laser technique?

A. It is ready for commercial use.

B. People can use the new tool to find more gemstones.

C. It can significantly reduce the gemstones trade in blood minerals.

D. It will bring about a revolutionary change in identifying the origin of minerals.

5.The author wrote this passage mainly to ________.

A. tell us how to identify the origin of diamonds.

B. introduce a laser technique in identifying a stone’s origin

C. prove identifying the origin of gemstones are difficult

D. attract our attention to reducing trade in blood minerals

 

查看答案和解析>>

科目:高中英語 來源:2013-2014學(xué)年重慶市高三4月月考英語試卷(解析版) 題型:單項(xiàng)填空

Everyone in this country should work hard and do what they can _____ against national smog.

A. fight B. foughtC. fightingD. to fight

 

查看答案和解析>>

科目:高中英語 來源:2013-2014學(xué)年遼寧省錦州市高三第一次質(zhì)量檢測(cè)考試英語試卷(解析版) 題型:填空題

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

A young and successful manager was travelling down a neighborhood street, going a bit too fast in his new Jaguar, 1.a brick hit the door of his Jaguar.

He jumped out of the car, 2.(seize) some kid and pushed him up against the parked car, shouting, “That’s 3.new car and that brick you threw is going to cost a lot of 4..Why did you do it?” “I’m sorry.I didn’t know what else to do?” begged the youngster.

“It’s my brother,”he said.“ He fell out of his wheelchair and I can’t lift him up.” Sobbing, the boy asked the manager, “5.you please help me get 6.back into his wheelchair? He 7.(hurt), and he’s too heavy for me”.

8.(move) beyond words, he lifted the young man back into the wheelchair back and took out his handkercheif and wiped thepes and cuts, 9.(check) to see that everything was going to be okay.

“Thank you, sir.And God bless you.”the grateful child said to him and then pushed his brother down the sidewalk 10.their home.

 

查看答案和解析>>

科目:高中英語 來源:2013-2014學(xué)年福建省高三第四次月考英語試卷(解析版) 題型:單項(xiàng)填空

Although I liked the design of the apartment, what really made me decide to buy it was the beautiful______ through the windows.

A. view B. scene

C. sights D. scenery

 

查看答案和解析>>

同步練習(xí)冊(cè)答案