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单选题Paleontologists hypothesize that modern birds evolved from the family of dinosaurs that included Tyrannosaurus rex. This hypothesis would be strongly supported if evidence that dinosaurs from this family had a body covering resembling feathers could be

题目
单选题
Paleontologists hypothesize that modern birds evolved from the family of dinosaurs that included Tyrannosaurus rex. This hypothesis would be strongly supported if evidence that dinosaurs from this family had a body covering resembling feathers could be found, but so far no such evidence has been found.　 Which of the following, if true, would most help the paleontologists explain why no evidence of feathered dinosaurs has yet been found?
A

Fossilized dinosaurs have shown many birdlike characteristics, such as bone structure and winglike arms.

B

If birds are in fact the descendants of dinosaurs, then it can be argued that the dinosaurs never really died out.

C

Flying dinosaurs such as the Pteranodon, which is not thought to have been related to modern birds, do not appear to have had feathers.

D

Soft tissues such as skin and feathers do not fossilize like bones, and therefore are far less likely to have left permanent evidence in the fossil record.

E

The thousands of dinosaur fossils excavated by paleontologists represent only a tiny fraction of the billions of dinosaurs that once lived.

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相似问题和答案

第1题：

The 1900 house

The bowler family was one of more than 400 families who applied to 1900 house, a reality TV shout which took a typical family back a hundred years to se how people lived in the days before the internet, computer games and even electricity.

The bowler family spent three months in a London home without a telephone, computers, TV, or fast food. The bowlers wore clothes from 1900, are only food available in English at that time, and cooked their meals on a single stove. Paul bowler still went to work every day in a then uniform. The children changed their clothes on the way to and from school and their classmates didn’t know about then unusural home life. Joyce stayed at home, cooking and cleaning like a typical housewife of the time, though everything took three times as long.

So does Joyce think that people’s lives were better in the old days?

“I think people in the old days had just ad many troubles and worries,” Joyce said.

And I don’t think their life was better or worse, there were lots of things back then that

I’m happy I don’t have to deal with nowadays, but on the other hand life was simpler.” “We had a lot more time with our family, and it was hard being nice to each other all the time,” eleven-year-old Hilary said.

So what did the Bowler family miss most about modern life while living in the 1900 house?

Paul,39:” telephone and a hot shower”

Joyce,44:” a quick cup of tea from a kettle you could just turn on”

Hilary,11:” rock CD”

Joseph,9:” hamburger and computer games”

54.While the Bowler family was living in 1900 house,_____.

A the mother spent more time on housework

B the two children wore the then clothes for school

C they prepared their meals together on a stove

D they ate simple foods they had never seen


正确答案：A

【文章导读】在英国，Bowler一家有幸成为400户体验20世纪初期人们日常生活的家庭之一，在这项体验活动中Bowler住进那个时期的房子，没有电话，电脑，电视，快餐身穿那个时代的服饰，通过这为期三个月的体验活动，他们一家人对于现在的生活有了更深的理解。

 A。【解析】推理判断题。根据第二自然段的最后一句可知本题选A。

第2题：

Mrs. Flowers was from an aristocratic family and enjoyed respect of both the white and black folks in the town.()


参考答案：错误

第3题：

At that time, I had a good job, a nice apartment and a happy family. What more could () want?

A、anybody

B、anyone


参考答案：B

第4题：

共用题干
The Family
The structure of a family takes different forms around the world and even in the same society. The family's form changes as it adapts to changing social and economic influences. Until recently,the most common form in North America was the nuclear family,consisting of a married couple with their minor children. The nuclear family is an independent unit. It must be prepared to fend for itself. Individual family members strongly depend on one anoth-er. There is little help from outside the family in emergencies. Elderly relatives of a nuclear family are cared for only if it is possible for the family to do so. In North America,the elderly often do not live with the family;they live in retirement communities and nursing homes.
There are many parallels between the nuclear family in industrial societies,such as North America,and of families in societies such as that of the Inuits,who live in harsh environments. The nuclear family structure is well adapted to a life of mobility. In harsh condi-tions,mobility allows the family to hunt for food. For North Americans,the hunt for jobs and improved social status also requires mobility.
The nuclear family was not always the North American standard. In a more agrarian time,the small nuclear family was usually part of a larger extended family. This might have included grandparents,mother and father,brothers and sisters,uncles,aunts,and cousins. In North America today,there is a dramatic rise in the number of single-parent households. Twice as many households in the United States are headed by divorced,separated,or never-married individuals as are comprised of nuclear families. The structure of the family,not just in North America,but throughout the world,continues to change as it adapts to changing conditions.

The information in the first paragraph is presented mainly through
A: listing statistics
B: telling a story
C: pointing out similarities
D: pointing out differences

答案：C
解析：
题干意为“下面哪个选项可以作为这篇短文另一个合适的标题？”该题为主旨题，短文开篇就提到了家庭结构，短文最后一句提到“不仅在北美洲，在全世界范围，家庭结构都会随着情况的不断变化而改变”，这也在谈论家庭结构，由此可见这篇短文的主题与家庭结构相关，由此可以进一步确认答案为A项“家庭的结构是什么”。
题干意为“核心家庭的定义是什么？”该题为细节题，第一段的第三句话对核心家庭进行了定义：Until recently,the most common form in North America was the nu-clear family, consisting of a married couple with their minor children．该句意为“在此以前，北美洲最普遍的家庭形式为核心家庭，由一对夫妇和他们未成年的孩子构成”。由此可知A项 “由一对夫妇和他们未成年的孩子构成的家庭”是答案。
题干意为“这篇文章最有可能出自哪里？”该题属于主旨题。该短文主题涉及家庭，因此最有可能出自人类学课本，所以A是正确的答案。
题干意为“第一段的信息主要以何种方式陈述的？”根据第一段的陈述方式，并没有列出数据（A项）或者讲故事（B项），而是通过描述共性而阐述出核心家庭的概念。因此C项“指出相似性”是正确的答案。
题干意为“mobility的词意是什么？”mobility是mobile“可移动的，机动的” 的名词形式。首先在短文中找到mobility存在的语境：（第二段）There are many parallels between the nuclear family in industrial societies, such as North America,and of families in societies such as that of the Inuits,who live inharsh environments. The nuclear family structure is well adapted to a life of mobility. In harsh conditions ,mobility allows the family to hunt for food. For North Americans, the hunt for jobs and improved social status also requires mobility.mobility所在的上下文提到“核心家庭结构良好地适应于……的生活。在恶劣的条件下，……能让一个家庭吃饱饭，对北美洲人来说，找工作和提高社会地位同样需要……。”四个选项中，A项“金钱”,B项“随时准备迁居”,C项“组织，机构”,D项“技能，技巧”，显然B项“随时准备迁居”填入mobility所在的语境中合适，因此答案为B。

第5题：

From her conversations with her friends, I could __________ that she has a large family.

A．deduce
B．decide
C．declare
D．deceive

答案：A
解析：
考查动词辨析。deduce“推断，推论”，decide“决定”，declare“宣布，发表”，deceive“欺骗”。根据句意可知应是“我”从她和朋友的谈话中推断出她有一个大家庭，故选A。

第6题：

Passage Two

Questions 26 to 30 are based on the following passage.

Scientists have established that influenza viruses taken from man can cause the disease in animals. In addition，man can catch the disease from animals. In fact，a great number of wild birds seem to carry the virus without showing any evidence of illness. Some scientists conclude that a large family of influenza viruses may have evolved in the bird kingdom，a group that has been on the earth 100 million years and is able to carry the virus without contracting the disease. These are even convincing evidence to show that virus strains are transmitted from place to place and from continent to continent by migrating birds.

It is known that two influenza viruses can recombine when both are present in an animal at the same time. The result of such recombinations is a great variety of strains constraining different H and N spikes. This raises the possibility that a human influenza virus can recombine with an influenza virus form. a lower animal to produce an entirely new spike.

Research is underway to determine if that is the way that major new strains come into being. Another possibility is that two animal influenza strains may recombine in a pig，for example，to produce a new strain which is transmitted to man.

According to the passage，scientists have discovered that influenza viruses______.

A. cause ill health in wild birds

B. do not always cause symptoms in birds

C. are rarely present in wild birds

D. change when transferred from animals to man


正确答案：B
 [解析] 见本文第三句话。

第7题：

What can we infer about primitive birds from the text?

A．They had claws to help them climb.

B．They could fly long distances.

C．They had four wings like hoatzins.

D．They had a head with long feathers on the top.


正确答案：A

第8题：

It can be inferred from the text that the author .

A. was sick of staying upstairs

B. cared much about her children

C. could not stand living a wooden house

D. did not deal well with her family affairs during the flood


正确答案：B

第9题：

What would someone learn from this text?

A. How to make a lot of money.
B. How to write a book about business.
C. What the book is about.
D. What the writer's family is like.

答案：C
解析：
根据这篇文章可以了解整本书的目的和主旨，所以答案选C。

第10题：

共用题干
The Family
The structure of a family takes different forms around the world and even in the same society. The family's form changes as it adapts to changing social and economic influences. Until recently,the most common form in North America was the nuclear family,consisting of a married couple with their minor children. The nuclear family is an independent unit. It must be prepared to fend for itself. Individual family members strongly depend on one anoth-er. There is little help from outside the family in emergencies. Elderly relatives of a nuclear family are cared for only if it is possible for the family to do so. In North America,the elderly often do not live with the family;they live in retirement communities and nursing homes.
There are many parallels between the nuclear family in industrial societies,such as North America,and of families in societies such as that of the Inuits,who live in harsh environments. The nuclear family structure is well adapted to a life of mobility. In harsh condi-tions,mobility allows the family to hunt for food. For North Americans,the hunt for jobs and improved social status also requires mobility.
The nuclear family was not always the North American standard. In a more agrarian time,the small nuclear family was usually part of a larger extended family. This might have included grandparents,mother and father,brothers and sisters,uncles,aunts,and cousins. In North America today,there is a dramatic rise in the number of single-parent households. Twice as many households in the United States are headed by divorced,separated,or never-married individuals as are comprised of nuclear families. The structure of the family,not just in North America,but throughout the world,continues to change as it adapts to changing conditions.

Another good title for this passage would be______.
A: What Makes a Family?
B: The Life of the Inuits
C: Living With Hardship
D: The Failure of the Nuclear Family

答案：A
解析：
题干意为“下面哪个选项可以作为这篇短文另一个合适的标题？”该题为主旨题，短文开篇就提到了家庭结构，短文最后一句提到“不仅在北美洲，在全世界范围，家庭结构都会随着情况的不断变化而改变”，这也在谈论家庭结构，由此可见这篇短文的主题与家庭结构相关，由此可以进一步确认答案为A项“家庭的结构是什么”。
题干意为“核心家庭的定义是什么？”该题为细节题，第一段的第三句话对核心家庭进行了定义：Until recently,the most common form in North America was the nu-clear family, consisting of a married couple with their minor children．该句意为“在此以前，北美洲最普遍的家庭形式为核心家庭，由一对夫妇和他们未成年的孩子构成”。由此可知A项 “由一对夫妇和他们未成年的孩子构成的家庭”是答案。
题干意为“这篇文章最有可能出自哪里？”该题属于主旨题。该短文主题涉及家庭，因此最有可能出自人类学课本，所以A是正确的答案。
题干意为“第一段的信息主要以何种方式陈述的？”根据第一段的陈述方式，并没有列出数据（A项）或者讲故事（B项），而是通过描述共性而阐述出核心家庭的概念。因此C项“指出相似性”是正确的答案。
题干意为“mobility的词意是什么？”mobility是mobile“可移动的，机动的” 的名词形式。首先在短文中找到mobility存在的语境：（第二段）There are many parallels between the nuclear family in industrial societies, such as North America,and of families in societies such as that of the Inuits,who live inharsh environments. The nuclear family structure is well adapted to a life of mobility. In harsh conditions ,mobility allows the family to hunt for food. For North Americans, the hunt for jobs and improved social status also requires mobility.mobility所在的上下文提到“核心家庭结构良好地适应于……的生活。在恶劣的条件下，……能让一个家庭吃饱饭，对北美洲人来说，找工作和提高社会地位同样需要……。”四个选项中，A项“金钱”,B项“随时准备迁居”,C项“组织，机构”,D项“技能，技巧”，显然B项“随时准备迁居”填入mobility所在的语境中合适，因此答案为B。

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