wastes(大小便失禁). other warnings are the appearance of white areas on the mouth dark red areas of skin that do not disappear and a higher than normal body temperature 26. Which of the following statements is NoT mentioned in the passage? A)As many as 350 thousand persons have AIDs B)The AIDS virus is carried in a persons body fluids. C)There's no vaccine medicine to prevent AIDS D)The AIDs virus is not spread by mosquitoes 27 Concerning the ways the AIDs virus can be passed, which of the following statements is wrong? A)An AIDs mother can pass on the virus to her unborn child B)The AIDs virus can be passed on through infected blood CThe AIDs virus can be passed on by shaking hands and sharing belongings D)The AIDs virus is passed sexually. 28.The expression a pregnant woman"(Para. 3)means A)a woman who has an unborn child in the body B)a woman who is taking drug C)a woman who has the AIDs virus D)an unmarried mother 29. The fifth paragraph is mainly about A)the results of an AIDs infection B)the possible symptoms of an AIDS infection C)how the AIDS virus is spread D)the diseases AiDs patients easily have 30. When the aids virus attacks our defense system A)it starts to destroy our white blood cells B)we begin to feel tired C)it means we will die very soon D)our white blood cells can control it Passage 3 Questions 31 to 35 are based on the following passage For some time past it has been widely accepted that babies -and other creatures-learn to do things because certain acts lead to rewards"; and there is no reason to doubt that this is true. But it used also to be widely believed that effective rewards, at least in the early stages, had to be directly related to such basic physiologica(生理的)“ drives” as thirst or hunger. In other words, a baby would learn if he got food or drink or some sort of physical comfort, not otherwise It is now clear that this is not so Babies will learn to behave in ways that produce results in the world with no reward except the successful outcome
wastes(大小便失禁). Other warnings are the appearance of white areas on the mouth ,dark red areas of skin that do not disappear and a higher than normal body temperature. 26.Which of the following statements is NOT mentioned in the passage? A)As many as 350 thousand persons have AIDS. B)The AIDS virus is carried in a person’s body fluids. C)There’s no vaccine medicine to prevent AIDS. D)The AIDS virus is not spread by mosquitoes. 27.Concerning the ways the AIDS virus can be passed,which of the following statements is wrong? A)An AIDS mother can pass on the virus to her unborn child. B)The AIDS virus can be passed on through infected blood. C)The AIDS virus can be passed on by shaking hands and sharing belongings. D)The AIDS virus is passed sexually. 28.The expression “a pregnant woman”(Para. 3) means____ . A)a woman who has an unborn child in the body B)a woman who is taking drug C)a woman who has the AIDS virus D)an unmarried mother 29.The fifth paragraph is mainly about____ . A)the results of an AIDS infection B)the possible symptoms of an AIDS infection C)how the AIDS virus is spread D)the diseases AIDS patients easily have 30.When the AIDS virus attacks our defense system____ . A)it starts to destroy our white blood cells B)we begin to feel tired C)it means we will die very soon D)our white blood cells can control it Passage 3 Questions 31 to 35 are based on the following passage. For some time past it has been widely accepted that babies—and other creatures—learn to do things because certain acts lead to “rewards”;and there is no reason to doubt that this is true.But it used also to be widely believed that effective rewards,at least in the early stages,had to be directly related to such basic physiological(生理的) “drives”as thirst or hunger.In other words,a baby would learn if he got food or drink or some sort of physical comfort ,not otherwise. It is now clear that this is not so.Babies will learn to behave in ways that produce results in the world with no reward except the successful outcome
Papousek began his studies by using milk in the normal way to reward"the babies and so taught them to carry out some simple movements, such as turning the head to one side or the other. then he noticed that a baby who had had enough to drink would refuse the milk but would still go on making the learned response with clear signs of pleasure. So he began to study the childrens responses in situations where no milk was provided He quickly found that children as young as four months would learn to turn their heads to right or left if the movement " switched on"a display of lights -and indeed that they were capable of learning quite complex turns to bring about this result, for instance, two left or two right or even to make as many as three turns to one side Papousek's light display was placed directly in front of the babies and he made the interesting observation that sometimes they would not turn back to watch the lights closely although they would smile and bubble"when the display came on Papousek concluded that it was not primarily the sight of the lights which pleased them it was the success they were achieving in solving the problem, in mastering the skill, and that there exists a fundamental human urge to make sense of the world and bring it under intentional control 31. According to the author, babies learn to do things which A)are directly related to pleasure B)will meet their physical needs C)will bring them a feeling of success D)will satisfy their curiosity 32 Papousek noticed in his studies that a baby. A)would make learned responses when it saw the milk B)would carry out learned movements when it had enough to drink C)would continue the simple movements without being given milk D)would turn its head to right or left when it had enough to drink 33. In Papousek's experiment babies make learned movements of the head in or der to A)have the lights turned on B )be rewarded with milk C)please their parents D)be praised 34The babies would"smile and bubble"at the lights because A)the lights were directly related to some basic drives B)the sight of the lights was interesting C)they need not turn back to watch the lights D)they succeeded in switching on"the lights 35.According to papousek's, the pleasure babies get in achieving something i s a reflection of A)a basic human desire to understand and control the world B)the satisfaction of certain physiological needs
Papousek began his studies by using milk in the normal way to “reward” the babies and so taught them to carry out some simple movements,such as turning the head to one side or the other.Then he noticed that a baby who had had enough to drink would refuse the milk but would still go on making the learned response with clear signs of pleasure.So he began to study the children’s responses in situations where no milk was provided.He quickly found that children as young as four months would learn to turn their heads to right or left if the movement “switched on ”a display of lights —and indeed that they were capable of learning quite complex turns to bring about this result,for instance,two left or two right,or even to make as many as three turns to one side. Papousek’s light display was placed directly in front of the babies and he made the interesting observation that sometimes they would not turn back to watch the lights closely although they would “smile and bubble”when the display came on.Papousek concluded that it was not primarily the sight of the lights which pleased them,it was the success they were achieving in solving the problem,in mastering the skill,and that there exists a fundamental human urge to make sense of the world and bring it under intentional control. 31.According to the author,babies learn to do things which____ . A)are directly related to pleasure B)will meet their physical needs C)will bring them a feeling of success D)will satisfy their curiosity 32.Papousek noticed in his studies that a baby____ . A)would make learned responses when it saw the milk B)would carry out learned movements when it had enough to drink C)would continue the simple movements without being given milk D)would turn its head to right or left when it had enough to drink 33.In Papousek’s experiment babies make learned movements of the head in or der to ____. A)have the lights turned on B)be rewarded with milk C)please their parents D)be praised 34.The babies would “smile and bubble” at the lights because____ . A)the lights were directly related to some basic “drives” B)the sight of the lights was interesting C)they need not turn back to watch the lights D)they succeeded in “switching on” the lights 35.According to papousek’s,the pleasure babies get in achieving something i s a reflection of ____. A)a basic human desire to understand and control the world B)the satisfaction of certain physiological needs