题目内容
（请给出正确答案）
A)为找到人类的新起源，许多科学家正在研究模拟海洋动植物的生活环境。
B)许多科学家正在海洋里为人类寻找新的动植物资源。
C)为给人类找到新的资源，许多科学家在研究海洋生物的生活。
D)为给人类找到新的资源，许多科学家在研究海洋动植物。
E)许多科学家在研究海洋动植物的过程中为人类找到了新的资源。
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更多“Many scientists are now making…”相关的问题
At the beginning, how did many scientists view Peppeberg's work？
A． It would reveal a creature's mind.
B． It would probably end in failure.
C． It would be hard to judge its value.
D． It would be a long-term project.
Dinosaur scientists can probably know whether dinosaurs were good parents by ______.
A．watching many kinds of animals
B．studying dinosaurs' living relatives
C．following the tracks left behind
D．working on dug-out dinosaur eggs
21. Now many animals can do some simple jobs that are done by human beings.
22. The writer says that 8t a circus we can see animals doing cIever tricks.
23. The trainer usually gives the animal a piece of candy or fruit after it has done the trick.
24. The reward in the passage means "attention paid to a good behavior".
25. Many animals may be trained to do simple jobs if they know who their trainers are.
26. Geese can be used to guard a house.
27. When the pigeon sees a ball which looks different from the others , it makes a noise.
28. Trainer usually spends 40 days or so training a pigeon to inspect sm811 steel balls.
29. An ape is a large monkey.
30. Scientists believe apes may drive buses one day.
【C1】
A．have used
B．have been used
C．has been used
D．will be used
Many Native Americans closely resemble Asians. 正确his has led most scientists to(1)believe something about Native Americans. 正确hey think that most Native Americans(2)from a distant group of people. 正确hese people(3)from Siberia across the Bering Strait, between 17,000-11,000 years ago. 正确he exact time and 4 is still under question. 正确hat is, it is still a(n)(5)of debate. 正确he time they traveled and the route they took is still being argued, as is whether it happened(6).
(7)recently, some anthropologists (人类学家) argued that the migration occurred 12,000 years ago. However, there are a number of difficulties with this theory —(8)particular, the presence of people in the Americas earlier than one might think. 正确here is growing evidence of human(9)in Brazil and Chile 11,500 years ago or earlier. 正确here is also(10)of humans living in the Americas some 50,000 years ago.(11), other possibilities have been suggested.
正确hey may have(12)the land bridge several thousand years earlier or they may have sailed along the western coast. However, some(13)this theory. 正确hey think that humans(14)skills for sailing during that era.
Some consider the genetic and cultural evidence for an Asian origin overwhelming. It should be noted,(15), that some other people are very upset at this idea. Many present-day Native Americans(16)the above theories. 正确hey say those who put forward such theories have political(17)正确hey have their own traditional stories that offer(18)of where they came from. 正确heir own stories claim that their(19)are different from what scientists say. 正确hose accounts, though, have mostly been(20)by scholars. 正确herefore, the origin of Americans still remains a mystery to be explored.
What is the main subject of the passage？
A．A solution to man"s food problem.
B．A solution to the population problem.
C．Advantages of soybean.
D．How to develop good eating habits.
Does this sound familiar？ You have probably read something like it in magazines or books, or seen it in a film. Why is it so popular？ One of the reasons is that it reflects the fears of many people; fear of the unknown fear of what is not understood or, at least, fear of something that is not completely understood.
The fact is that every day it seems that computers take control of another area of our lives. Some
factory jobs are now done by robots and the robots are controlled by computers. Our bank accounts are managed by computers. At the airport, our tickets are sold by a computer. Certainly, many of these operations are made more
efficient by computers, but our admiration is sometimes mixed with unsafe feelings. And this lack of safety is caused by the fact that we do not know how computers do these things, and we really don't know what they might do next. But we can find out how computers work, and once we understand them, we can use computers instead of worrying about being used by them. Today, there is a new generation of computer wizards who know exactly how computers get things done. These young men and women, usually university students, are happy to sit for hours, sometimes for days, designing programs, not eating, not sleeping, but discovering what can be done by these wonderful slaves which they have learned to control. These computer wizards have learned to use the computer and search for new tasks for their machines.
(1)、According to the passage, our present world is under the control of ______ .
A：mad scientists
B：men and women
C：the unknown fear
D：some super-inventions
(2)、The reason why many people are afraid of computers is that ______ .
A：they don't know anything about computers
B：they haven't really understood computers
C：there are so many computer games
D：computers are often down
(3)、The author mentions computer wizards in order to point out that ______ .
A：computers can be controlled by man
B：there should be more people devoted to computers
C：only young people are interested in computers
D：more time and energy is required to control computers
(4)、This passage is probably written to suggest that ______ .
A：some day computers can deal with all human problems
B：computers can be used in place of traveling to our jobs
C：people should not fear computers
D：computer technology will not meet people's needs in various situations
(5)、The author's attitude towards widely used computers is __.
A：positive
B：anxious
C：worried
D：serious
Paras. 7&8
The genetic maps also shed new light on the origins of populations that have long puzzled scientists. Example: the Khoisan people of southern Africa. Many scientists consider the Khoisan a distinct race of very ancient origin. The unique character of the clicking sounds in their language has persuaded some researchers that the Khoisan people are directly descended from the most primitive human ancestors~ But their genes beg to differ. They show that the Khoisan may be a very ancient mix of west Asians and black Africans. A genetic trail visible on the maps shows that the breeding ground for this mixed population probably lies in Ethiopia or the Middle East.
The most distinctive members of the European branch of the human tree are the Basques of France and Spain. They show unusual patterns for several genes, including the highest rate of a rare blood type. Their language is of unknown origin and cannot be placed within any standard classification. And the fact that they live in a region next to famous caves which contain vivid paintings from Europe's early humans, leads Cavalli-Sforza to the following conclusion: "The Basques are extremely likely to be the most direct relatives of the Cro-Magnon people, among the first modern humans in Europe." All Europeans are thought to be a mixed population, with 65% Asian and 35% African genes.
A statement: The genetic maps also shed new light on the origins of populations that have long puzzled scientists.
Example 1:
Many scientists consider the Khoisan a distinct race of very ancient origin, directly descended from the most primitive human ancestors. But the genetic maps show ______ (Para. 7)
Example 2:
The Basques of France and Spain have unusual patterns for several genes and their language of unknown origin cannot be placed within any standard classification. And the fact where they live leads to the conclusion that the Basques are likely to be ______. All Europeans are thought to be a ______. (Para. 8)
Language is always changing. In a society where life continues year after year with few changes, the languages do not change either. The earliest known languages had difficult grammar but a small, limited vocabulary. Over the century, the grammar changed, and the vocabulary grew. For example, the English and Spanish people who came to America during the sixteenth century gave names to all the new plants and animals they found. In this way, hundreds of new words were introduced into English and Spanish vocabularies. Today life is changing very fast,and language is changing fast too.
There are several major language families in the world. Some scientists say there are nine main families, but other scientists divided them differently. The languages in each family are connected, and scientists think that they came from the same parent language. About 3% of the people in the world speak languages that are not in these major families.
1. The early language had many words and easy grammar.
A. T B. F
2. In the next few hundred years we can expect language to change a great deal.
A. T B. F
3. This article shows that language changes with changes in society.
A. T B. F
4. From this article we can know that language will become easier and easier.
A. T B. F
5. The first English and Spanish people arrived in America more than 400-500 years ago.
A. T B. F
