[考研类试卷]考研英语模拟试卷218及答案与解析.doc
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1、考研英语模拟试卷 218及答案与解析 一、 Section I Use of English Directions: Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D. (10 points) 1 Space is a dangerous place, not only because of meteors(流星 ) but also (1)_ rays from the sun and other stars. The atmosphere again
2、(2)_ as our protective blanket on earth. Lightgets through, and this is essential for plants to (3)_ the food which we eat. Heat, too, makes our environment endurable. Various kinds of rays come through the air (4)_ outer space, but enormous quantities of radiation from the sun are (5)_ off. As soon
3、 as men leave the atmosphere they are (6)_ to this radiation, but their space suits or the walls of their spacecraft, if they are inside, (7)_ prevent a lot of radiation damage. (8)_ is the greatest known danger to explorers in space. The unit of radiation is called “rem“. Scientists have (9)_ to th
4、ink that a man can (10)_ far more radiation than 0.1 ram without being damaged: the figure of 60 rems has been agreed on. The trouble is that it is extremely difficult to make (11)_ about radiation damage a person may feel perfectly well, (12)_ the cells of his or her sex organs may be damaged, and
5、this will (13)_ be discovered until the birth of deformed children or even grandchildren. Missions of the Apollo flights have had to cross belts of high radiation and during the outward and return journeys, the Apollo crew (14)_ a large amount of rems. So far; no (15)_ amounts of radiation have been
6、 reported, but the Apollo missions have been quite short. We simply do not know yet how men are. going to (16)_ when they spend weeks and months outside the (17)_ of the atmosphere, (18)_ in a space laboratory. Drugs might help to (19)_ the damage done by radiation, but no really (20)_ ones have bee
7、n found so far. ( A) the ( B) with ( C) because of ( D) dangerous ( A) uses ( B) acts ( C) treats ( D) floats ( A) offer ( B) provide ( C) make ( D) obtain ( A) from ( B) into ( C) off ( D) by ( A) defended ( B) prevented ( C) postponed ( D) screened ( A) invulnerable ( B) vicious ( C) ineffective (
8、 D) exposed ( A) do ( B) to ( C) they ( D) who ( A) exposure ( B) radiation ( C) rays ( D) flying ( A) reason ( B) it ( C) that ( D) more ( A) receive ( B) put up with ( C) cope ( D) put off ( A) right ( B) sure ( C) understandable ( D) wise ( A) when ( B) furthermore ( C) but ( D) even ( A) yet ( B
9、) still ( C) nor ( D) continuously ( A) accumulated ( B) assembled ( C) contained ( D) gathered ( A) large ( B) enormous ( C) poisonous ( D) dangerous ( A) move along ( B) stay alive ( C) get on ( D) come back ( A) guard ( B) cover ( C) layer ( D) protection ( A) flying ( B) working ( C) trapping (
10、D) staying ( A) stop ( B) remove ( C) decrease ( D) eliminate ( A) useful ( B) effective ( C) purposeful ( D) efficient Part A Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points) 21 The most critical time in the life of a human is the
11、 very beginning the first hours after birth. Yet it has been only within the past few years that doctors have recognized that treating a newborn baby like a small child is not the best procedure. This is especially true of “high risk babies“, a term applied to babies that are premature, underweight,
12、 or born with major organic defects. They need immediate, imaginative, intensive care and observation, not only for survival but also to help circumvent physical problems which may affect the infant for life. Out of this requirement has developed a new branch of medicine called neonatology, which is
13、 concerned with the first three months of life. Dozens of major hospitals throughout the United States have opened newborn intensive care units, directed by neonatologists and employing equipment and techniques devised specially for tiny patients. One of the greatest aids in these units is an “isole
14、tte“an electronically equipped glass-enclosed incubator with portholes for sterile access to the baby. Inside the isolette, sensors placed on the infant make him look much like a miniature astronaut. The sensors automatically regulate and record the temperature, humidity, and oxygen in this “artific
15、ial womb“, as well as signal change or trouble affecting its occupant. In hospitals with newborn intensive care unit, specialists are ready to use their skills as the need arises. They are alerted to pregnancies that may develop complications. For example, if a woman who is pregnant enters the hospi
16、tal and is under the age of 18 or over the age of 40, is undernourished or obese, has diabetes, heart or kidney trouble, the neonatologists are advised. The neonatologist often attends the delivery of a baby with the obstetrician, and then rushes the newborn infant into his special care unit. There,
17、 within a few minutes, the baby is tested, examined thoroughly, and made ready for treatment or surgery if needed. The most common cause of infant deaths is pre-maturity. In some hospitals it is not unusual to find 8 or 9 “preemies“ (premature infants) in the special care units at one time. In addit
18、ion to the technical advances, the health of the infant depends on an ageless ingredient-love. Nurses are essential members of baby-caring teams. Their job is to rock, to feed, and to fondle the very small patients. Even at this early age, doctors find that lack of love has adverse physical and psyc
19、hological effects on the newborn babies. As the number of neonatologists and special care centers has increased, the survival rate for high-risk babies in the United States has risen from about 75 % a few years ago to an impressively high 90% today. Doctors think that the 90% could be increased if t
20、he babies could be brought more quickly under the care of a neonatologist. In some hospitals, teams of doctors and nurses can respond to emergencies with portable isolettes which are carried by airplane, helicopter, or ambulance. 21 Doctors have recently discovered that_. ( A) newborn babies should
21、be treated as small children ( B) newborn babies should be brought quickly under the care of his parents ( C) high-risk babies need immediate surgery ( D) high-risk babies should brought quickly under the care of a neonatologist 22 According to the passage, all of the following are true about isolet
22、te EXCEPT_. ( A) it is an electronically equipped glass-enclosed incubator with portholes and sensors inside ( B) it functions as “artificial womb“ ( C) sensors inside make the baby look like a miniature astronaut ( D) portholes in isolette allow a doctor to regulate the body temperature and oxygen
23、supply of an infant 23 What is the most common cause of infant deaths? ( A) Prematurity. ( B) Organic defects. ( C) Lack of special equipment. ( D) Lack of artificial womb. 24 Besides technical advances, what else is needed for the health of an infant? ( A) Isolette. ( B) Artificial womb. ( C) Lovin
24、g care. ( D) Newborn intensive care units. 25 The following statements are the reasons why the survival rate for high-risk babies in the United States has risen EXCEPT_. ( A) portable isolettes make emergency treatment of high-risk babies possible ( B) high-risk babies cotdd be brought more quickly
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