四川省广元市20xx届高三英语上学期第三次段考试题

四川省广元市20xx届高三英语上学期第三次段考试题内容摘要：

udents may worry that low grades will keep them out of graduate school or a good job. And there may be another explanation: pressure from parents to get a good return on the family39。 s investment. These days, college can cost more than a house. A former teaching assistant recently wrote to the New York Times about his experience with grade expectations. He would try to explain it this way when students asked for a top grade just for studying hard in chemistry class: What if a baseball player came to spring training and worked harder than all the others, but still could not play well? Would the team accept him anyway, just because he tried so hard? The students would say no. But most of them would still ask for an A. does the passage mainly discuss? A． Whether students deserve high marks just for trying hard. B． Whether students are allowed to answer calls in class. C． How students can get a good grade in the course. D． Why students put a lot of efforts in their studies. 29. According to the research, most of the students _______. A. thought it was all right to answer the call during class. B. thought they did most of the work for class and should get a B. C. objected to deciding grades only by the quality of a student’s work. D. agreed that they should be given top grades because of their hard work. 30. Which of the following opinions do social critics agree to about children’s activities? A． Those who are active in the activities can get an award. B． Only by playing an important role in the activities can you get an award. C． Whoever takes part in the activities can get an award. D． An award is prepared for anyone who performs best in the activities. 31. From the sixth paragraph we can learn that _____. A． it costs much more to build a college than to buy a house. B． the costs of studying at college are much more than staying at home. C． the costs of sending a child to college are much more than buying a house. D． it is difficult for parents to send a child to college. D You know eating fruit and vegetables does good. But do you know it can also make you look good? People who increased their intake over just six weeks developed a healthy glow and appeared more attractive, researchers found. Scientists at St Andrews University found eating them slightly increased yellow and red pigments in the volunteers39。 skin. They monitored the food intake of 35 people and took pictures of their faces, arms and hands using a sensitive camera at the start, and after three and six weeks. Increasing their intake of greens by portions a day was found to make the person look more healthy and an extra portions could enhance their attractiveness, when their photographs were rated by others. Fruit and vegetables are rich in carotenoids(类胡萝卜素 )， which are known to protect against cell damage from pollution and UV rays, and can also prevent agerelated diseases including heart disease and cancer. But while it was known eating extreme amounts of certain vegetables such as carrots could turn skin orange，it was not known a small increase was perceptible(被觉察） to others— and was seen as appealing. A camera measured changes to the skin39。 s redness, yellowness and lightness, and found it significantly changed in people who naturally increased their intake. These changes were not evident in three weeks. Using light sensors, the researchers showed these red and yellow hues were linked with the levels of carotenoids in their skin. There are hundreds of carotenoids but those thought to have the most dramatic effect are lycopene(番茄红素 )— which gives tomatoes and red peppers their red colour— and betacarotene found in carrots as well as broccoli, squash, and spinach. Skin colour is also affected by chemicals called polyphenols(多元酚 )， found in apples, blueberries and cherries, which cause blood rush to the skin surface. 32. What do we know from the research? A. If you take in a little more fruit and vegetables, you will obviously look more attractive in three weeks. B. People who increased their intake of greens by portions a day were found the most attractive after six weeks. C. Increasing your intake of greens by portions a day can greatly improve your health. D. The researchers took the pictures of the 35 people in the research at different stages. 33. Which of the following is NOT the function of carotenoids。 A. They can protect against cell damage from pollution and UV rays. B. They can prevent heart disease and cancer. C. They can keep you in good health. D. They can prevent agerelated diseases. 34. Which of the statements is NOT TRUE according to the passage? A. We39。 ve already known eating extreme amounts of carrots can turn skin orange. B. We knew in the past that eating a few more carrots could make us look appealing.。