单选题Why does the author call lichens pioneers?A Because they developed so early in the history of the planet.B Because of their primitive structure.C Because they prepare soil for other plants.D Because they were the first plants to live in Antarctica.
题目
Because they developed so early in the history of the planet.
Because of their primitive structure.
Because they prepare soil for other plants.
Because they were the first plants to live in Antarctica.
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更多“单选题Why does the author call lichens pioneers?A Because they developed so early in the history of the planet.B Because of their primitive structure.C Because they prepare soil for other plants.D Because they were the first plants to live in Antarctica.”相关问题
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第1题：
Why does the author think it necessary to bring order to the Internet_________?
A． Because its database is disorganized.
B． Because the information required is specific.
C． Because its information is diverse and widespread.
D． All of the above.
正确答案：C
逻辑分析题。根据第一段“Because of the diverse and widespread information when one needs it，there is a need to bring some sort of organization to the Internet community．”可知只有选项C(because its information is diverse and widespread)符合题意，因此C为正确答案。 -
第2题：
Why does the author think the BMGF is the most innovative and successful in history? _________.
A． Because their money is ruled to be given to the really needy people.
B． Because they insist that good intentions should lead to good results.
C． Because their response is immediate if the need is immediate.
D． Because they have to know that every check from Seattle is actually used.
正确答案：A
逻辑推理题。作者为什么认为RMGF是历史上最创新、最成功的基金会?根据全文内容来看，是因为这个基金会的所以基金都是用来帮助世界各地最最需要帮助的人。从四个选项来看，只有A项“Because their money is ruled to be given to the really needy people．”最符合题意，所以正确答案是A。 -
第3题：
25． Why do we call the sun"a life-giving star"?
A． Because it gives us warmth．
B． Because there are some living things on it．
C． Because plants and animals can't live without it．
D． Because people have to live in the dark without it．
正确答案：C
z5.C【解析】由最后一段中“The' sun gives us...1t makes life possible on our earth.”可知。 -
第4题：
Why does the author say Miss Finlayson would remember that first snow day?
A．Because the little girl was in her brother’s clothes.
B．Because it was the most exciting day of the winter.
C．Because the little girl played a trick on her.
D．Because the little girl wore a pretty scarf.
正确答案：A
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第5题：
23． Why does Philip like action movies?
A． Because they are scary．
B． Because they are interesting．
C． Because they are exciting．
D． Because they are boring，
正确答案：C
23．C【解析】第六句可说明这一点。 -
第6题：
Why does the writer say “Going to a dinner party is strange ”?A、Because you tell the hosts that you enjoy the evening.
B、Because you cannot complain how bad the party is.
C、Because you invite the hosts to your dinner party.
D、Because what you do is different from what you really feel.
参考答案：D
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第7题：
What does the author want to tell us most?
A. Women' s brains are better organized for language and communication
B. Women love to talk because they are more sociable than men.
C. Men do not like talking because they rely more on facts.
D. Social conditioning is not the reason why women love talking.
正确答案：A
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第8题：
Why does common man in England seem to be as accurate-or as inaccurate-as the weatherman in his prediction?
A．Because the weather in English is SO variable．
B．Because the common man in England has as much knowledge about weatheras the weatherman．
C．Because by lunch time there could be thunder and lightening in England
D．Because English weather always defies forecast
正确答案：A
见文章第三自然段最后一句，即可知答案。 -
第9题：
Why didn't the immigrants share the lands with the natives?
A. They thought the Indians were not friendly to them.
B. They wanted to seize the lands as their own.
C. Because North America was first discovered by them.
D. Because the Indian people liked making war to them.
正确答案：B参见第一段句子：“However, these early immigrants from Europe didn't want to share the land with the natives．They killed off many Of the Indians，seized their land or pushed them off to lands farther away．”
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第10题：
The earliest immigrants to North America found Indians already living there．The Indians numbered about 500,000 at that time．Their society was a primitive society,but they lived peacefully and welcomed the white strangers to the land．However,these early immigrants from Europe didn't want to share the land with the natives．They killed off many of the Indians,seized their land or pushed them off to lands farther away．Today the Indians,not more than half a million,live in poverty and misery on the land on which they were once masters.
The earliest immigrants were the Spanish,who settled in the southern part of what is now the US．The next large group were the English,after the English came the French,Dutch,Irish,Germans,and other nationality groups,mostly European.
Another early group to arrive were the Negroes．But they were brought in as slaves from Africa．They didn't win freedom till generations later.
Why didn't the immigrants share the lands with the natives?A.They thought the Indians were not friendly to the
B.They wanted to seize the lands as their ow
C.Because North America was first discovered by the
D.Because the Indian people liked making war to the答案：B解析：参见第一段句子：“However，these early immigrants from Europe didn’t want to share the land with the natives．They killed off many of the Indians，seized their land or pushed them off to lands farther away．” -
第11题：
Why is Australia.s New South Wales called the premier state?（）
- A、Because it was the first colony established by Britain in 1788.
- B、Because it is the biggest state in Australia.
- C、Because it is the most important state in Australia.
- D、Because it has the largest population in Australia.
正确答案:A -
第12题：
单选题It can be inferred that the author of the text most likely regards the criticism of methanol as ______.Aflawed because of the assumptions on which it is based
Binapplicable because of an inconsistency in the critics’ arguments
Cmisguided because of its exclusively technological focus
Dinaccurate because it ignores consumers’ concerns
正确答案： B解析：
细节推导题。文章第四段首句指出“Like any alternative fuel, methanol has its critics”，可知接下来要讲的就是methanol“甲醇”的不足之处，第二句提到“Yet much of the criticism is based on the use of “gasoline clone” vehicles that do not incorporate even the simplest design improvements that are made possible with the use of methanol.”即作者认为人们觉得甲醇有问题是因为所基于的假设，A项正确。 -
第13题：
Why does it take long for people to change their food?
A． Because labs are not easily accessible to researchers.
B． Because some people are reluctant to accept the new diet.
C． Because food consumption is a culture of conservation.
D． Because some scientists are against the growing lab meat.
正确答案：C
细节推理题。由文章最后一段中的最后两句话“But food consumption is a conservative culture phenomenon．It cad take several generations to change．”内容可以得出结论，作者认为食品消费一直以来都是一种保守的文化现象，因此正确答案是C。
参考译文：
新型的健康肉制品将不再是诸如猪肉或是自然饲养的牛肉了。如果那些有远见的科学家成功了的话．将来的肉制品无论从口感还是外观上看都与以前的没有什么,区别，唯一不同的只是它们是在实验室里制成的。
一些专家正在从事这样一项工作：他们把含有动物肌肉细胞的肉养在盘子里。而现在的技术离这些肉上市还有很长一段路要走。但是专家坚信这将是产生一种新型美国饮食的有效方法，这样的肉对人体也会更健康。此外，这种在实验室里研制出来的肉制品意味着专家们可以对肉的脂肪、蛋白质和其他一些指标进行控制，从而生产出污染少的肉制品。那么或许到那时麦当劳的早餐肉就能使人们远离而不是让人患上心脏疾病。
然而，仍有一些科学家对此产生了质疑。他们说：“无论从技术还是经济上来说，这都不实际。”毕竟，肉制品不是简单的肌肉细胞组合，而是一种由脂肪、神经、血管和相关组织结合在一起的复杂结合体。每种细胞在其成品的口感上都起着一定的作用。这种结构的模仿对产品具有良好的口感是必需的。事实上，在实验室里研制肉制品并不是一种新的观点。早在1912年，一位法国科学家就做过这样一个试验：他将鸡心上的组织养在有营养旁的玻璃瓶里。这些肌肉组织存活了30多年——竟然比这位科学家活的时间还长!至于成本，专家们正试图将其降低。因为现在这种实验室肉制品一磅大约要花费1000至5000美元。就目前的消费水平来说，人们根本无法接受。
在这个禽流感、疯牛病不断出现，人口密度不断加大，探测火星的壮志不断升华的时代，实验室肉制品必将会走向市场。但是食品消费一直以来都是一种保守的文化现象，对这一趋势的适应还需要很长的时间。 -
第14题：
Why did American city residents want to live in the suburbs after World War Ⅱ?
A. Because older American cities were dying.
B. Because they were richer and needed more space.
C. Because cities contained the wont pare of society.
D. Because they could hardly afford a live in the city.
正确答案：B
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第15题：
Why does author say that they were lucky in the third paragraph?
A. Because her situation was not serious.
B. Because many other places were flooded.
C. Because she had been to Northern India.
D. Because some others suffered even more.
正确答案：D
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第16题：
Gypsies are often treated with disapproval, lack of trust, and lack of understanding because their way of life is so different from the way most other British people live.
正确答案：吉普赛人的生活方式和大部分英国人大不相同所以人们对吉普赛人的态度总是不以为然很不信任而且对他们的生活缺乏了解。
吉普赛人的生活方式和大部分英国人大不相同，所以人们对吉普赛人的态度总是不以为然，很不信任，而且对他们的生活缺乏了解。 -
第17题：
Most animals have little connection with animals of different kind, unless they hunt them for food. Sometimes, however, two kinds of animals come together in a partnership ( 伙伴关系 ) which does good to both of them. You may have noticed some birds sitting on the backs of sheep. This is not because they want a ride, but because they find easy food in the parasites (寄生虫 ) on sheep. The sheep allow the birds to do so because they remove the cause of discomfort. So although they can manage without each other, they do better together.
Sometimes an animal has a plant partner. The relationship develops until the two partners cannot manage without each other. This is so in the corals ( 珊瑚 ) of the sea. In their skins they have tiny plants act as "dustman", taking some of the waste products form. the corals and giving in return oxygen which the animal needs to breathe. If the plants are killed, or are ever prevented from lighting so that they cannot live normally, the corals will die.
1、Some birds like to sit on a sheep because ( ).
A、they can eat its parasites
B、 they depend on the sheep for existence
C、 they enjoy traveling with the sheep
D、 they find the position most comfortable
2、The underlined word "they" in the last sentence of the first paragraph refers to ( ).
A、birds and parasites
B、birds and sheep
C、parasites and sheep
D、sheep, birds and parasites
3、What does the second paragraph mainly discuss? ( )
A、Some animals and plants depend on each other for existence.
B、 Some animals and plants develop their relationship easily.
C、 Some plants depend on each other for foo
D、 Some animals live better together.
4、What does this article talk about? ( )
A、Two kinds of animals for a partnership.
B、Most animals only have connection with animals.
C、The connection between the living things.
D、Corals have some connection with plants.
正确答案：1A 2B 3A 4C
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第18题：
－Why does he look so anxious －Because there are so many problems().A、remaining to settle
B、remained settling
C、remaining to be settled
D、remained to be settled
参考答案：C
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第19题：
29． Why are green plants and grass helpful?
A． Because they can hold the water．
B． Because they can stop the wind from blowing the earth away．
C． Because they can keep the earth wet．
D．All the above．
正确答案：D
29.D【解析】从第二段可知A、B、C三项内容全都包括，故选D。 -
第20题：
27． Why does eating apples make one-s stomach want less food?
A． Because apples are delicious．
B． Because apples are full of fiber and water．
C． Because apples are sour．
D． Because only apples are filled with calories．
正确答案：B
27．B【解析】由文中减肥方法(3)可知“苹果中含有、 大量的纤维和水，可使你少吃饭”，故选B。 -
第21题：
The author easily built a team of his company because __________.A.they were underpaid at their previous jobs
B.they were turned down by other companies
C.they were confident of the author and his business
D.they were satisfied with the salaries in his company答案：C解析：文章第三段“I started to build a team who trusted me even though I didn’t have money forpaychecks yet．”由此可见，团队成员对作者及其创办的公司很有信心，否则不会不计后果地给他做事。故选C项。 -
第22题：
Why does the author say at the beginning“The miserable fate of Enron’s employees will be a landmark in business history .？( )A.Because the company has gone bankrupt.
B.Because such events would never happen again.
C.Because many Enron workers lost their retirement savings.
D.Because it signifies a turning point in economic security.答案：D解析：
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第23题：
Why were the French troops in Canada defeated by the British during theSeven Years.War?（）
- A、Because they were not used to the weather in Canada.
- B、Because they did not get support from the local people.
- C、Because they did not receive the supplies they needed so badly.
- D、Because the British had larger and better settlements in Canada.
正确答案:C