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1、2021年大学英语考试模拟卷（2）本卷共分为1大题50小题，作答时间为180分钟，总分100分，60分及格。一、单项选择题（共50题，每题2分。每题的备选项中，只有一个最符合题意） 1.Children have been said to have brain-injured child syndrome, hyperactive (极度活跃的) child syndrome and attention-deficit disorder (ADD). As early as the 1940s, psychiatrists have (67) children with hyperactivi
2、ty and extremely distracted and impulsive (冲动的). These frequent name changes show how (68) researchers, are about the causes (69) the problem and the diagnostic criteria for the disorders. In the past several years, the people who (70) attention deficit hyperactivity disorder (ADHD) have (71) to cla
3、rify the disorders causes and (72) , and have reasons to believe that it may be genetic. Todays view (73) this disorder is very different from the beliefs of just a few years ago. Researchers are finding that ADHD is not a disorder of just attention, but is from a developmental (74) in the brains ci
4、rcuitry and self-control. The loss of self-control (75) other important brain functions mandatory for maintaining (76) . ADHD involves two sets of symptoms: inattention and a (77) of hyperactive and impulsive behaviors. Most children are more active and distractive than adults are. Children are more
5、 inconsistent, affected by brief actions. The younger the child, the less (78) they are. This behavior is a (79) of a problem when it is displayed more in them than in their (80) . Boys are at least three times more (81) than girls to have ADHD. Studies have found that ADHD in boys outnumbers girls
6、9 to 1, this is because boys are genetically likely to (82) disorders in the nervous system. These behaviors generally (83) between the ages of 3 and 5. (84) , some children dont start to develop the disorder until (85) childhood or early adolescence. Researchers are unable to find the reasons for t
7、his (86) .AfailureBdefaultCabsenceDvariation 2.Children have been said to have brain-injured child syndrome, hyperactive (极度活跃的) child syndrome and attention-deficit disorder (ADD). As early as the 1940s, psychiatrists have (67) children with hyperactivity and extremely distracted and impulsive (冲动的
8、). These frequent name changes show how (68) researchers, are about the causes (69) the problem and the diagnostic criteria for the disorders. In the past several years, the people who (70) attention deficit hyperactivity disorder (ADHD) have (71) to clarify the disorders causes and (72) , and have
9、reasons to believe that it may be genetic. Todays view (73) this disorder is very different from the beliefs of just a few years ago. Researchers are finding that ADHD is not a disorder of just attention, but is from a developmental (74) in the brains circuitry and self-control. The loss of self-con
10、trol (75) other important brain functions mandatory for maintaining (76) . ADHD involves two sets of symptoms: inattention and a (77) of hyperactive and impulsive behaviors. Most children are more active and distractive than adults are. Children are more inconsistent, affected by brief actions. The
11、younger the child, the less (78) they are. This behavior is a (79) of a problem when it is displayed more in them than in their (80) . Boys are at least three times more (81) than girls to have ADHD. Studies have found that ADHD in boys outnumbers girls 9 to 1, this is because boys are genetically l
12、ikely to (82) disorders in the nervous system. These behaviors generally (83) between the ages of 3 and 5. (84) , some children dont start to develop the disorder until (85) childhood or early adolescence. Researchers are unable to find the reasons for this (86) .AdictatesBfulfilsCperformsDweakens 3
13、.Children have been said to have brain-injured child syndrome, hyperactive (极度活跃的) child syndrome and attention-deficit disorder (ADD). As early as the 1940s, psychiatrists have (67) children with hyperactivity and extremely distracted and impulsive (冲动的). These frequent name changes show how (68) r
14、esearchers, are about the causes (69) the problem and the diagnostic criteria for the disorders. In the past several years, the people who (70) attention deficit hyperactivity disorder (ADHD) have (71) to clarify the disorders causes and (72) , and have reasons to believe that it may be genetic. Tod
15、ays view (73) this disorder is very different from the beliefs of just a few years ago. Researchers are finding that ADHD is not a disorder of just attention, but is from a developmental (74) in the brains circuitry and self-control. The loss of self-control (75) other important brain functions mand
16、atory for maintaining (76) . ADHD involves two sets of symptoms: inattention and a (77) of hyperactive and impulsive behaviors. Most children are more active and distractive than adults are. Children are more inconsistent, affected by brief actions. The younger the child, the less (78) they are. Thi
17、s behavior is a (79) of a problem when it is displayed more in them than in their (80) . Boys are at least three times more (81) than girls to have ADHD. Studies have found that ADHD in boys outnumbers girls 9 to 1, this is because boys are genetically likely to (82) disorders in the nervous system.
18、 These behaviors generally (83) between the ages of 3 and 5. (84) , some children dont start to develop the disorder until (85) childhood or early adolescence. Researchers are unable to find the reasons for this (86) .AambitionBaspirationCattentionDacquisition 4.Children have been said to have brain
19、-injured child syndrome, hyperactive (极度活跃的) child syndrome and attention-deficit disorder (ADD). As early as the 1940s, psychiatrists have (67) children with hyperactivity and extremely distracted and impulsive (冲动的). These frequent name changes show how (68) researchers, are about the causes (69)
20、the problem and the diagnostic criteria for the disorders. In the past several years, the people who (70) attention deficit hyperactivity disorder (ADHD) have (71) to clarify the disorders causes and (72) , and have reasons to believe that it may be genetic. Todays view (73) this disorder is very di
21、fferent from the beliefs of just a few years ago. Researchers are finding that ADHD is not a disorder of just attention, but is from a developmental (74) in the brains circuitry and self-control. The loss of self-control (75) other important brain functions mandatory for maintaining (76) . ADHD invo
22、lves two sets of symptoms: inattention and a (77) of hyperactive and impulsive behaviors. Most children are more active and distractive than adults are. Children are more inconsistent, affected by brief actions. The younger the child, the less (78) they are. This behavior is a (79) of a problem when
23、 it is displayed more in them than in their (80) . Boys are at least three times more (81) than girls to have ADHD. Studies have found that ADHD in boys outnumbers girls 9 to 1, this is because boys are genetically likely to (82) disorders in the nervous system. These behaviors generally (83) betwee
24、n the ages of 3 and 5. (84) , some children dont start to develop the disorder until (85) childhood or early adolescence. Researchers are unable to find the reasons for this (86) .AcoalitionBcirculationCcombinationDcompetition 5.Children have been said to have brain-injured child syndrome, hyperacti
25、ve (极度活跃的) child syndrome and attention-deficit disorder (ADD). As early as the 1940s, psychiatrists have (67) children with hyperactivity and extremely distracted and impulsive (冲动的). These frequent name changes show how (68) researchers, are about the causes (69) the problem and the diagnostic cri
26、teria for the disorders. In the past several years, the people who (70) attention deficit hyperactivity disorder (ADHD) have (71) to clarify the disorders causes and (72) , and have reasons to believe that it may be genetic. Todays view (73) this disorder is very different from the beliefs of just a
27、 few years ago. Researchers are finding that ADHD is not a disorder of just attention, but is from a developmental (74) in the brains circuitry and self-control. The loss of self-control (75) other important brain functions mandatory for maintaining (76) . ADHD involves two sets of symptoms: inatten
28、tion and a (77) of hyperactive and impulsive behaviors. Most children are more active and distractive than adults are. Children are more inconsistent, affected by brief actions. The younger the child, the less (78) they are. This behavior is a (79) of a problem when it is displayed more in them than
29、 in their (80) . Boys are at least three times more (81) than girls to have ADHD. Studies have found that ADHD in boys outnumbers girls 9 to 1, this is because boys are genetically likely to (82) disorders in the nervous system. These behaviors generally (83) between the ages of 3 and 5. (84) , some
30、 children dont start to develop the disorder until (85) childhood or early adolescence. Researchers are unable to find the reasons for this (86) .AawareBcarefulCretardedDemotional 6.Children have been said to have brain-injured child syndrome, hyperactive (极度活跃的) child syndrome and attention-deficit
31、 disorder (ADD). As early as the 1940s, psychiatrists have (67) children with hyperactivity and extremely distracted and impulsive (冲动的). These frequent name changes show how (68) researchers, are about the causes (69) the problem and the diagnostic criteria for the disorders. In the past several ye
32、ars, the people who (70) attention deficit hyperactivity disorder (ADHD) have (71) to clarify the disorders causes and (72) , and have reasons to believe that it may be genetic. Todays view (73) this disorder is very different from the beliefs of just a few years ago. Researchers are finding that AD
33、HD is not a disorder of just attention, but is from a developmental (74) in the brains circuitry and self-control. The loss of self-control (75) other important brain functions mandatory for maintaining (76) . ADHD involves two sets of symptoms: inattention and a (77) of hyperactive and impulsive be
34、haviors. Most children are more active and distractive than adults are. Children are more inconsistent, affected by brief actions. The younger the child, the less (78) they are. This behavior is a (79) of a problem when it is displayed more in them than in their (80) . Boys are at least three times
35、more (81) than girls to have ADHD. Studies have found that ADHD in boys outnumbers girls 9 to 1, this is because boys are genetically likely to (82) disorders in the nervous system. These behaviors generally (83) between the ages of 3 and 5. (84) , some children dont start to develop the disorder un
36、til (85) childhood or early adolescence. Researchers are unable to find the reasons for this (86) .AsymbolBsignalCmarkDsign 7.Children have been said to have brain-injured child syndrome, hyperactive (极度活跃的) child syndrome and attention-deficit disorder (ADD). As early as the 1940s, psychiatrists ha
37、ve (67) children with hyperactivity and extremely distracted and impulsive (冲动的). These frequent name changes show how (68) researchers, are about the causes (69) the problem and the diagnostic criteria for the disorders. In the past several years, the people who (70) attention deficit hyperactivity
38、 disorder (ADHD) have (71) to clarify the disorders causes and (72) , and have reasons to believe that it may be genetic. Todays view (73) this disorder is very different from the beliefs of just a few years ago. Researchers are finding that ADHD is not a disorder of just attention, but is from a de
39、velopmental (74) in the brains circuitry and self-control. The loss of self-control (75) other important brain functions mandatory for maintaining (76) . ADHD involves two sets of symptoms: inattention and a (77) of hyperactive and impulsive behaviors. Most children are more active and distractive t
40、han adults are. Children are more inconsistent, affected by brief actions. The younger the child, the less (78) they are. This behavior is a (79) of a problem when it is displayed more in them than in their (80) . Boys are at least three times more (81) than girls to have ADHD. Studies have found th
41、at ADHD in boys outnumbers girls 9 to 1, this is because boys are genetically likely to (82) disorders in the nervous system. These behaviors generally (83) between the ages of 3 and 5. (84) , some children dont start to develop the disorder until (85) childhood or early adolescence. Researchers are
42、 unable to find the reasons for this (86) .AfriendsBpeersCsistersDacquaintances 8.Children have been said to have brain-injured child syndrome, hyperactive (极度活跃的) child syndrome and attention-deficit disorder (ADD). As early as the 1940s, psychiatrists have (67) children with hyperactivity and extr
43、emely distracted and impulsive (冲动的). These frequent name changes show how (68) researchers, are about the causes (69) the problem and the diagnostic criteria for the disorders. In the past several years, the people who (70) attention deficit hyperactivity disorder (ADHD) have (71) to clarify the di
44、sorders causes and (72) , and have reasons to believe that it may be genetic. Todays view (73) this disorder is very different from the beliefs of just a few years ago. Researchers are finding that ADHD is not a disorder of just attention, but is from a developmental (74) in the brains circuitry and
45、 self-control. The loss of self-control (75) other important brain functions mandatory for maintaining (76) . ADHD involves two sets of symptoms: inattention and a (77) of hyperactive and impulsive behaviors. Most children are more active and distractive than adults are. Children are more inconsiste
46、nt, affected by brief actions. The younger the child, the less (78) they are. This behavior is a (79) of a problem when it is displayed more in them than in their (80) . Boys are at least three times more (81) than girls to have ADHD. Studies have found that ADHD in boys outnumbers girls 9 to 1, this is because boys are genetically likely to (82) disorders in the nervous system. These behaviors generally (83) between the ages of 3 and 5. (84) , some children dont start to develop the disorder until (85) childhood or early adolescence. Researchers are unable to find the reasons for this