(2013·天津12區二模)He never thought that his success came ________ he least wanted it.
A．until B．since C．when D．while
科目：高中英語 來源：2014高考名師指導分項拿分專訓句子大舞臺＋完形填空＋閱讀理解英語試卷（解析版） 題型：單項填空
(2013·河南豫西五校高三質檢)—I prefer western food. It's a kind of healthy food.
—________ But western food is said to be high in sugar and fat, such as hamburgers and fries.
A．Is that right?
B．How do you know that?
C．Do you really think so?
D．Who told you that?
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科目：高中英語 來源：2014高考名師指導分項拿分專訓單項填空＋完形填空＋閱讀理解1英語試卷（解析版） 題型：單項填空
(2013·東北三校4月聯考)—Car prices have been going down sharply in the last 20 years.
—It's not surprising because the law of market ________ the price of a product.
A．is controlling B．controls
C．has controlled D．controlled
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科目：高中英語 來源：2014高考名師指導分項拿分專訓單項填空閱讀理解英語試卷（解析版） 題型：單項填空
(2013·寧夏銀川一中高三第四次考試)________ scores of times, but he still couldn't understand it.
A．Having explained
B．Having been explained
C．Though it was explained
D．It was explained
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科目：高中英語 來源：2014高考名師指導分項拿分專訓單項填空閱讀理解英語試卷（解析版） 題型：單項填空
(2013·甘肅蘭州名校高三檢測)The professor told me to start the research right now, ________ I was sure to fall behind.
A．or B．so C．but D．and
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科目：高中英語 來源：2014高考名師指導分項拿分專訓單項填空完形填空閱讀理解書面表達英語卷（解析版） 題型：單項填空
Paul's mother had him ________ because she couldn't bring him up herself.
A．adapted B．adjusted C．adopted D．applied
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科目：高中英語 來源：2014高考名師指導分項拿分專訓單項填空完形填空閱讀理解書面表達英語卷（解析版） 題型：單項填空
That coat fits me, but I can't afford to buy ________. I have to choose ________ that is cheap enough for me.
A．one; that B．that; it
C．it; one D．it; the one
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(2013·寧夏銀川一中高三第四次考試)Siberian Tigers ________ and killed at such a speed that they will disappear from the earth in the near future.
A．hunted B．are hunted
C．are being hunted D．had been hunted
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科目：高中英語 來源：2014年高考限時訓練（3）英語試卷（解析版） 題型：閱讀理解
Two?thirds of the world's major rivers have now been disrupted with more than 50,000 dams in an attempt to store water and provide power.In the US，there are more than 85,000 dams，disrupting large and small rivers，and in most cases transforming natural flow.The most famous of these，the Hoover Dam，constructed in the 1930s，is mainly responsible for the fact that the Colorado River no longer reaches the ocean.
Dams，besides all their attractive benefits，also have negative impacts.Creating a reservoir means a large area must be flooded.Communities may lose their land，houses and culturally important sites.
Environmentally，the new reservoir can be a paradise for wildlife，especially birds；however，it can cause greenhouse gas emissions and poison the water.Also，the dramatic rise and fall of water levels during dam releases is too extreme for plants and animals to cope with，resulting in dead zones around the shores of reservoirs.Fish that lay their eggs in the shallows，for example，may find a few hours later that those sites are high and dry.
Downstream(在下游方向)of a dam，the flow may be reduced so that farmers cannot irrigate their fields.Many rivers run through national borders，which may cause conflict over precious water.Disputes have been continuing between India and Pakistan，and Turkey，Syria and Iraq，for example.
Dams don't just block the flow of water.They also prevent fish migrations，and dams are a barrier to sediment(沉淀物)flows.Instead of rushing downriver，sediments get backed up against the dam wall，which causes the reservoir level to increase over time.However，sediments which are rich in nutrients have become a problem.The fertility of the entire system can be influenced，with soils lost during seasonal rains not being replaced.
Perhaps the biggest problem can be seen in deltas，which are sinking into the oceans.Groundwater is being extracted to feed the city，causing the city to sink，and sediments washed away by the ocean are no longer being replaced.The result is that sea level rises in cities from Shanghai to Alexandria.
1.The Hoover Dam is mentioned in the passage in order to show________.
A．dams play an important role in our life
B．dams have impacted the flow of the rivers
C．dams make people lose their land and houses
D．dams have many benefits as well as side effects
2.What effects does creating a reservoir have on people's life?
a．People will see fewer birds on the sides of the rivers.
b．Farmers will have less water to irrigate their fields.
c．Visitors can't visit some cultural relics any more.
d．More conflicts and wars over water will break out.
e．More kinds of fish will become extinct in future.
A．a，c B．c，e
C．b，e D．b，c
3.With many dams built across the rivers，fish ________.
A．will find more places to lay their eggs
B．will face a dangerous habitat
C．will be fed on more sediments rich in nutrients
D．will find it easier to deal with the rise of water
4.How can dams influence large cities like Shanghai?
A．Their entire system will be influenced.
B．The rainy season will last longer.
C．They will lie below sea level in future.
D．Rich soils will be washed away.
5.What does the passage mainly talk about?
A．Environmental loss of dams.
B．Cultural loss of dams.
C．Economic gain of dams.
D．Environmental benefits of dams.
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