题目内容
（请给出正确答案）
A.distinctive feature
B.minimal pair
C.complementary pair
D.perfect pair
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According to the passage, DNA fingerprinting can be unreliable when ______ .
A．the methods used of blood cell calculation are not accurate
B．two different individuals of the same ethnic group may have the same DNA fingerprinting pattern
C．a match is by chance left with fingerprints that happen to belong to two different individuals
D．two different individuals leave two DNA samples
Extended family
In an extended family, all the people share one household. Apart from parents and children, there may be other family members: grandparents, aunts, uncles, cousins, etc. That is to say, a large family may have more than two generations, and often there are more than two adults from different generations of a family.
The family members live together for many reasons. They may help to bring up children or to take care of an ill relative. They may also help with saving money. Sometimes children are brought up by their grandparents, for their parents have died or can never take care of them. Many grandparents look after the children, particularly when both parents are busy working. This large family is called extended family. It can be found all over the world. The number of these families has increased by 40 percent in the past ten years. Most of such families live happily together.
操作提示：句子正确选择下拉选项框为“T”；句子错误选择下拉选项框为“F”。
1. In an extended family, people live in different houses.（）
2. An extend family includes at least three generations. （）
3.In an extended family, children are looked after by their grandparents because their parents are traveling around. （）
4. Extended families can be found all over the world. （）
5. Children can live happily with their parents and grandparents. （）
Both games had been invented a thousand years before. In the first kind of football game ever played, all the men from one village tried to kick a ball into another village. The men of the second village tried to kick the ball into the first. Hundreds of people joined in, running everywhere, running crops and knocking down fences. In time, people agreed on some rules to keep order, but many roles were left open to change. Different rules developed in different places.
When the two colleges met to play football, each followed its own rules. They mixed the games together and invented a new game. A hundred years later we call that game American football.
In what ways do you suppose the game we know now will have changed in another hundred years？
When the two colleges first met to play "football", the players followed ______.
A．the rules of soccer
B．the rules of rugby
C．different rules
D．college rules
When we see well, we do not think about our eyes very often. (79) It is only when we cannot see perfectly that we realize how important our eyes are.
People who are nearsighted can only see things that are very close to their eyes. Everything else seems blurry (模糊的). Many people who do a lot of close work, such as writing, reading and sewing, become nearsighted. Then they have to wear glasses in order to see distant objects clearly.
People who are farsighted suffer from just the opposite problem. They can see things that are far away, but they have difficulty in reading a book unless they hold it at arm's length. If they want to do much reading, they must get glasses, too.
Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism (散光). This, too, can be corrected by glasses. Some people's eyes become cloudy because of cataracts (白内障). Long ago these people olden became blind. Now, however, it is possible to operate on the cataracts and remove them.
Having two good eyes is important for judging distances. Each eye sees things from a slightly different angle. To prove this to yourself, look at object out of one eye; then look at the same object out of your other eye. You will find the object's relation to the background and other things around it has changed. The difference between these two different eye views helps us to judge how far away an object is. People who have only one eye cannot judge distance as people with two eyes.
We should take good care of our eyes ______.
A．only when we can see well
B．only when we cannot see perfectly
C．even if we can see dell
D．only when we realize how important our eyes are
People who are near-sighted can only see things that are very close to their eyes.' Everything else is not so clear. Many people who do a lot of close work, such as writing, reading and sewing, become near sighted. Then they have to wear glasses in order to see distant (远处的) things clearly.
People who are far-sighted suffer from just the opposite problem. They can see things that are far away, but they have difficulty in reading a book unless they hold it at arm's length. If they want to do much reading, they must get glasses, too.
Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism (散光). This, too, can be corrected by glasses. Some people's eyes become cloudy because of cataracts (白内障). Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them."
Having two good eyes is important for judging distances. Each eye sees things from a slightly different angle (角度). To prove this to yourself, look at an object out of one eye; then look at the same object out of the other eye. You will find the object's relation to the background (背景) and other things around it has changed. The difference between these two different eye views helps us to judge how far away an object is. People who have only one eye cannot judge distance as people with two eyes.
We should take good care of our eyes ______.
A．only when we cannot see perfectly
B．only when we can see well
C．even if we can see well
D．only when we realize how important our eyes are
We learned from the first two paragraphs that
A．the cows were more sensitive to the flash flood.
B．Helen was more sensitive to the flash flood.
C．Helen was scared when they met.
D．the cows were scared when seeing us.
It's actually rather difficult to say which cities【23】the largest. There are two reasons for this difficulty. First of all, it isn't easy to determine a city's boundaries, that is, where a city ends. Nowadays, nearly all cities have a large【24】area around them. So when we talk about the population of a city, we often mean the population of the whole metropolitan area around the city. That means that it's difficult to determine what the population of a city is because it's difficult to define what a city is.
The second reason that it is difficult to【25】the population of different cities is this: it is almost impossible to get【26】about the population of all cities for the same year. For example, we might get an estimate of New York's population in 1979 and an【27】of Mexico City's population in 1981. So we real ly can't compare the numbers because the information is for【28】different years. And the population of cities changes rather quickly, especially in some cases. For example, the population of Jakarta, Indonesia, may increase by 5% each year, so the population figure will change rather quickly.
So we can say that these are our two【29】for comparing the populations of cities: one, it's difficult to determine the【30】of a city, and two, it is difficult to get accurate information.
(46)
A．what
B．which
C．where
D．how
Dr Steven Brown, from McMaster University in Canada, said, "It looks like when you are acting, you are suppressing (压制) yourself; almost like the character is possessing you." Brown and colleagues report how 15 actors, mainly theatre students, were trained to take on a Shakespeare role — either Romeo or Juliet — in a theatre workshop. They were then invited into the laboratory, where their brains were scanned in a series of experiments. Once inside the MRI scanner, the actors were asked to answer a number of questions, such as: would they go to the party？ And would they tell their parents that they had fallen in love？ Each actor was asked to respond to different questions, based on two different premises (前提). In one, they were asked for their own perspective, while in the other, they were asked to respond as though they were either Romeo or Juliet.
The results revealed that the brain activity differed depending on the situation being tested. The team found that when the actors were in character, they use some third-person knowledge or inferences about their character. The team said they also found additional reduction in activity in two regions of the prefrontal cortex (前额皮质) linked to the sense of self, compared with when the actors were responding as themselves.
However, Philip Davis, a professor at the University of Liverpool, was unimpressed by the research, saying acting is about far more than "pretending" to be someone — it involves embodying (体现) the text and language.
1.How did Dr Brown's team conduct their research？（）
A.By scanning the brain activity of some actors
B.By doing a survey with some theatre goers
C.By interviewing some theatre teachers
D.By consulting some experienced researchers
2. Which of the following is Not True according to the research？（）
A. When actors are acting, they are suppressing themselves
B. The subjects (实验的研究对象)were all theatre students
C. The subjects’ brains were scanned in a series of experiments
D. The subjects’ brain activity differed depending on the situation being tested
E. The subjects were asked different questions
3.What is the finding of Dr Brown's research？（）
A.Acting is not as mysterious as people think
B.Actors' brain activity differs when they are acting
C.Acting is far more than pretending to be the character
D.Actors' brain activity is more active when they are in character
4.How did Philip Davis react to the research？（）
A.He supported it
B.He doubted it
C.He explained it
D.He advocated it
5.What is the text mainly about？（）
A.A debate of how the brain functions
B.A play written by Shakespeare
C.A research on the brain activity of actors
D.A report of the cooperation of scientists and actors
What is the 'biggest city in the world？ That is, (21) city has the largest population？ This seems like (22) question to answer, but actually it isn't.
It's actually rather difficult to say which cities (23) the largest. There are two reasons for this difficulty. First of all, it isn't easy to determine a city's boundaries, that is, where a city ends. Nowadays, nearly all cities have a large (24) area around them. So when we talk about the population of a city, we often mean the population of the whole metropolitan area around the city. That means that it's difficult to determine what the population of a city is because it's difficult to define what a city is.
The second reason that it is difficult to 25 the population of different cities is this: it is almost impossible to get (26) about the population of all cities for the same year. For example, we might get an estimate of New York's population in 1979 and an (27) of Mexico City's population in 1981. So we real ly can't compare the numbers because the information is for (28) different years. And the population of cities changes rather quickly, especially in some cases. For example, the population of Jakarta, Indonesia, may increase by 5% each year, so the population figure will change rather quickly.
So we can say that these are our two (29) for comparing the populations of cities: one, it's difficult to determine the (30) of a city, and two, it is difficult to get accurate information.
21. A. what
B. which
C. where
D. how
People thank their parents with two days：Mother’sDay，on the second Sunday in May，and Father’s Day，on the third Sunday in June．These days are to show love for parents．Theyraise their children and educate them to be good people．They give them love and care． The two days are celebrated(庆祝)in many different ways．On Mother’s Day，people wear carnations．Wearing a red onemeans having a living mother．while a white one showsthat the mother is dead．It’s also a day when peoplewhose parents are dead visit the cemetery．On these daysfamilies get together at homes as well as in restaurants．They often have outdoor barbecues(烧烤聚会)forFather’s Day．These are days of fun and good feelings．Another tradition(传统)is to give cards andgifts．Children make them in school．Many people make their own presents．Theseare more valued(宝贵的)than those bought in shops．It’s not the value of the gift that is important，but the love for the’parents．Card shops，florists，candy makers，phone companies and other shops do lots of business during theseholidays． Which is not a reason forchildren to show love for parents？（）
A.Parents love and take care ofchildren．
B.Parents pass away before childrengrow up．
C.Parents give education tochildren．
