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Text 3 In the angry debate over how much of IQ comes from the genes that children inherit from parents and how much comes from experiences, one little fact gets overlooked: no one has identified any genes (other than those in the case of retardation) that affect intelligence. So researchers led by Robert Plomin of London’s Institute of Psychiatry decided to look for some. Plomin’s colleagues drew blood from two groups of 51 children each. They are all White living in six counties around Cleveland. In one group, the average IQ is 136. In the other group, the average IQ is 103. Isolating the blood cells, the researchers then examined each child’s chromosome 6 ( One of 23 human chromosomes along which genes made of DNA). Of the 37 landmarks on chromo- some 6 that the researchers looked for, one jumped out: a form of gene called IGF2R occurred in twice as many children in high-IQ group as in the average group -- 32 percent versus 16 percent. The survey conclu
A. questioningly.
B. willingly.
C. publicly.
D. undoubtedly.

[单项选择]

Text 3 In the angry debate over how much of IQ comes from the genes that children inherit from parents and how much comes from experiences, one little fact gets overlooked: no one has identified any genes (other than those in the case of retardation) that affect intelligence. So researchers led by Robert Plomin of London’s Institute of Psychiatry decided to look for some. Plomin’s colleagues drew blood from two groups of 51 children each. They are all White living in six counties around Cleveland. In one group, the average IQ is 136. In the other group, the average IQ is 103. Isolating the blood cells, the researchers then examined each child’s chromosome 6 ( One of 23 human chromosomes along which genes made of DNA). Of the 37 landmarks on chromo- some 6 that the researchers looked for, one jumped out: a form of gene called IGF2R occurred in twice as many children in high-IQ group as in the average group -- 32 percent versus 16 percent. The survey conclu
A. find out the differences of intelligence between the students.
B. make sure how many chromonsomes a healthy person have.
C. detect any genes which influence human beings’ intelligence.
D. find out the IQ differences between children and adults.

[单项选择]How much control you want to turn over to the car may depend on your age and（）.
A. where are you going
B. where you are going
C. where do you go to
D. that you are going

[单项选择]In "How much do you think he earns " how much is ______of the sentence.
A. the subject
B. the adverbial
C. the object
D. the complement

[单项选择]Mainstream economists profess much puzzlement over the failure of the rate of productivity growth to ______ so far in this decade.
A. accelerate
B. prevail
C. aggregate
D. precede

[单项选择]According to the text, how can Cindy "see"
A. She recognizes any text as "I love you".
B. She is equipped with a camera to search for text.
C. She is instructed by an engineer standing next to her.
D. She makes contact with the shapes of the text with her stomach.

[单项选择]From the text, how many places have the name Valencia
A. One
B. Two
C. Three
D. Four

[单项选择]According to this text how did critics respond to the movie
A. It was merely imitating life.
B. It was too much of politics.
C. It was merely fictions.
D. It was too much of entertainment.

[单项选择]How much does Military Cushman Club Newsletter cost for 12 issues if subscribed from abroad'
A. $12.00.
B. $16.00.
C. $16.95.
D. $20.00.

[单项选择]How much does the writer know about success
A. He knows at least several examples of success.
B. He knows every success in life.
C. He knows every success that has been achieved by man.
D. It is not referred to.

[单项选择]How much oil is there in the region

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Text 4 Over the past few decades, there has been a considerable increase in the use of mathematical analysis, both for solving everyday problems and for theoretical developments of many disciplines. For example, economics, biology, geography and medicine have all seen a considerable increase in the use of quantitative techniques. Twenty years ago applied mathematics meant the application of mathematics to problems in mechanics and little else--now, applied mathematics, or as many people prefer to call it, applicable mathematics, could refer to the use of mathematics in many varied areas. The one unifying theme that these applications have is that of mathematical modeling, by which we mean the construction of a mathematical model to describe the situation under study. This process of changing a real life problem into a mathematical one is not at all easy, we hasten to add, although one of the overall aims of this book is to improve your ability as a mathematical modeler. Th
A. be more proficient in mastering mathematical knowledge
B. be more proficient in applying his mathematical knowledge to real problem solving
C. have a better understanding of the various uses of mathematical models
D. fined real excitement and satisfaction in solving problems

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Text 3
Most growing plants contain much more water than all other materials combined. C. R. Bames has suggested that it is .as proper to term the plant a water structure as to call a house composed mainly of brick a brick building. Certainly it is that all essential processes of plant growth and development occur in water. The mineral elements from the soil that are usable by the plant must be dissolved in the. soil solution before they can be taken into the root. They are carried to all parts of the growing plants and are built into essential plant materials while in a dissolved state.
The carbon dioxide (CO₂) from the air may enter the leaf as a gas but is dissolved in water in the leaf before it is combined with a part of the water to form simple sugars -- the base material from which the plant body is mainly built. Actively growing plant parts are generally 75 to 90 percent water. Structural parts of plants, such as wood
A. to form sugars
B. to derive energy from light
C. to preserve water
D. to combine carbon dioxide with water