【简介】感谢网友“雕龙文库”参与投稿，这里小编给大家分享一些，方便大家学习。
Unit 2 Growing pains
时间：30分钟
Ⅰ.单项填空
1．The enemy had no choice but ________ their arms and ________.
A．lie down，give in
B．lay down，give in
C．to lay down，give in
D．to lie down，to give in
答案 C [have no choice but后接带to的不定式，且and与不定式之间存在并列关系。lay down one’s arms是“放下武器”之意。]
2．In order to look after her sick mother，she asked for a month's ________.
A．holiday
B．vacation
C．leave
D．rest
答案 C [holiday与vacation指“度假”，而leave指因事(病)而请的假。]
3．________ alone in a dark room，the little girl was so frightened as to cry loudly.
A．Leaving
B．Left
C．Being left
D．To be left
答案 B [此题考查非谓语动词。由于leave与句子主语the little girl是被动关系，所以应该用过去分词作状语。]
4．—Why can't you and Bill go to the movies tonight?
—We are ________ a history test tomorrow.
A．supposed to having
B．supposedly to have
C．supposed to have
D．supposedly to having
答案 C [答语意为“我们明天应有历史测验”。be supposed to do为固定词组，意为“理应做”。]
5．I ________ go shopping when the telephone rang.
A．was about to
B．was just to
C．had to
D．wanted to
答案 A [be about to do sth相当于be on the point of doing sth/be just going to do sth意为“马上就要做某事”，一般不与时间状语连用；be to do sth指按计划或职责、义务要求必须做某事或即将发生的动作；have to do sth不得不做某事；want to do sth想要做某事。]
6．It is said in Australia there is more land than the government knows ________.
A．it what to do with B．what to do it with
C．what to do with it
D．to do that with it
答案 C [do with中的do为及物动词，且what置于动词不定式之前。]
7．The teacher stressed again that the students should not ________ any important details while retelling the story.
A．bring out
B．let out
C．leave out
D．make out
答案 C [考查动词短语辨析。句意为“老师再次强调说，学生在复述这个故事的时候不应遗漏重要的细节”。因此选leave out，表示“遗漏；省略掉”。其他短语的含义：bring out 使……显现；let out发出(喊叫)；放出(气味、光等)；make out辨别出。]
8．The children were left ________ of a neighbour when they were on holiday.
A．in charge
B．in the charge
C．under charge
D．at charge
答案 B [in the charge of...表示“由……掌管；由……负责”。]
9．________ you've got a chance，you might as well make full use of it.
A．Now that
B．After
C．Although
D．As soon as
答案 A [根据题意“既然你得到了一个机会，你还是充分利用它为好”可知，B、C、D三项均不符合题意。]
10．How I wish every family ________ a large house with a beautiful garden!
A．has
B．had
C．will have
D．had had
答案 B [wish后接宾语从句，表示现在无法实现的愿望时，从句要用一般过去时。]
11．Schools in the south tend to be better equipped，________ those in the north are relatively poor.
A．while
B．since
C．when
D．as
答案 A [此处while有强调对比的意思。]
12．Many people who had seen the film were afraid to go to the forest when they remembered the scenes ________ people were eaten by the tiger.
A．in which
B．by which
C．which
D．that
答案 A [由四个选项可知应填入定语从句的引导词，先行词是表示地点的scenes，故用in which。]
13．The passenger was tired and walked slowly but he got home ________.
A．after all
B．at all
C．above all
D．in all
答案 A [句意为“这位旅客很疲劳，走得很慢，但他终究还是到家了”。从句意可知，后句表达的是转折意义。B、C、D三项没有此用法。]
14．The bus driver insisted that he ________ at a normal speed and therefore ________ for the child's death.
A．drive；not answer
B．was driving；shouldn't answer
C．should drive；shouldn't have answered
D．drove；shouldn't answer
答案 D [句意为“那位公共汽车司机坚持认为他是以正常速度行驶，因此他不应该对那个小孩的死负责”。insist在表示“坚持；坚持说”时，从句应用陈述语气。]
15．Who do you ______ we send to cover the bank robbery?
A．know
B．suppose
C．think
D．suggest
答案 D [do you suggest是插入语，只有suggest才要求后面的send是原形。]
Ⅱ.阅读理解
A
LOS ANGELES—Old people who keep walking a relatively long distance may be less likely to suffer from cognitive(认知的) decline，a new study suggests.
“By walking regularly，and maintaining a little bit of moderate physical activity，you can reduce your likelihood of developing Alzheimer's disease and spare brain tissue，” Kirk I．Erickson，the study's lead author，said.
Erickson and his colleagues from the University of Pittsburgh began to establish a link between walking and memory in 1989.
According to the report on their study published online Wednesday in Neurology，an official journal of the American Academy of Neurology，researchers tracked the physical activity and cognitive patterns of nearly 300 adults.
At the very beginning，all participants，on average 78 years old and about two－thirds being women，were in good cognitive health.The researchers charted how many blocks each person walked in one week.
Nine years later，the participants were given a MRI scan to measure their brain size.All of them were deemed to be“cognitively normal.”
But after four more years，test showed a little more than one third of the participants had developed a mild cognitive impairment or dementia.
By correlating cognitive health，brain scans and walking patterns，the research team found that being more physically active appeared to lower the risk of developing cognitive impairment.
As to how much walking would help prevent cognitive decline，the researchers suggested that walking about six miles，or 9.6 km，per week appears to protect the brain against shrinking in old age.
The researchers said the relationship between walking and gray matter volume appears to apply only to people who regularly walk relatively long distances.
The more someone walks，the more gray matter tissue the person will have a decade or more down the road in regions of the brain，namely the hippocampus，the inferior frontal gyrus and the supplementary motor area，that are central to cognition.
And among the more physically active participants who had retained more gray matter a decade out，the chances of developing cognitive impairment were cut in half，the study said.
【语篇解读】 老年人进行适当、有规律的散步能减少认知能力下降的可能性。
1．When did the old people tested in the research begin to show difference in cognitive decline?
A．When they were 78 years old.
B．When they were 87 years old.
C．Between the year 1989 and 1998.
D．Between the year 1998 and 2002.
答案 D [细节理解题。从文中第三段可知，实验于1989年开始，在9＋4年之后，测试结果显示实验对象在认知能力上已经存在差异。]
2．What do we know about the gray matter?
A．The quantity of it has a decisive influence on the cognitive ability.
B．It's something in the muscle that develops from physical activity.
C．It's a brain disease that will damage the cognitive ability.
D．It's some brain matter that can cure brain diseases.
答案 A [细节理解题。从文章最后三段可知，体力运动较积极的人脑部的gray matter较多，可推断gray matter的数量可显示认知能力水平。]
3．Which of the following is closest in meaning to the underlined word “shrinking” in Para.9?
A．worrying.
B．weakening.
C．widening.
D．wandering.
答案 B [词义猜测题。根据文意可知，walking可防止脑部萎缩，功能退化，与答案B(weakening)最相近。]
4．What is TRUE about the research?
A．Men and women differ in the decline of cognition.
B．The research subjects were required to walk blocks per week.
C．The findings suggest the more walking，the better health.
D．There were about 200 women involved in the research.
答案 D [正误判断题。从文中第四、五段可知，测试对象约300人，其中约2/3为女性。]
B
Israeli researchers say they have developed a substance that attracts and kills the mosquitoes infected with the malaria parasite(疟原虫)．However，the sweet－smelling substance is said to be harmless to people and animals，Scientists at Hebrew University in Jerusalem developed the sugary bait by combining fruit juice oils and boric acid(硼酸)．The fruit juice oils get the attention of the mosquitoes，and the boric acid kills the insects when they eat it.
The scientists took the sweet boric acid bait to the West African nation of Mali.They sprayed(喷洒) it on the plants near the man－made ponds which are home to “Anopheles Gambiae”，the mosquitoes that carry the most deadly form of malaria(疟疾)．The researchers also placed a sweet－smelling spray on the grasses near other ponds.But it contained no boric acid.Both of the substances also contained a substance that would mark any mosquito that came in contact with the bait.In this way the scientists could count the mosquitoes that fed on it.
Yosef Schlein，an expert on the insects that affect human health，led the sweet bait research.He says thirty－eight days of results show the sweet boric acid bait proved very effective in killing mosquitoes.At the ponds treated only with sweet－smelling bait，Professor Schlein says，more than seventy－five percent of mosquitoes fed on the false bait.He says most people do not know that female mosquitoes feed on sweet plant nectar to survive.
The Israeli researchers now hope to develop a bait that is even more desirable to the malaria mosquitoes.
Boric acid is generally safe for human beings and other mammals.Professor Schlein says scientists might be able to develop a mosquito bait for enclosed spaces.Boric acid has been used to kill other insects，including cockroaches，termites and ants inside homes since the middle of last century.
【语篇解读】 科学家们发现一种新的、对人类无害的、可以杀死疟蚊的方法。
5．Which of the following is TRUE about the sweet－smelling substance?
A．It is said to be harmless to people but harmful to animals.
B．It attracts the mosquitoes but fails to kill them most of the time.
C．It is actually created by Professor Schlein.
D．It is a mixture of fruit juice oils and boric acid.
答案 D [细节理解题。根据文章第一段可知答案为D。]
6．What does the underlined word “it” in Paragraph 2 refer to?
A．A sweetsmelling spray.
B．The fruit juice oil.
C．A sweetsmelling spray with boric acid.
D．The sweet boric acid bait.
答案 A [词义指代题。根据文章第二段中The researchers also placed a sweetsmelling spray on the grasses near other ponds.But it contained no boric acid可知答案为A。]
7．What do we know about Yosef Schlein?
A．He offered help to the researchers in the sweet bait research.
B．He is an expert on the substances that affect human health.
C．He thinks the sweet boric acid bait kills the malaria mosquitoes very effectively.
D．He thinks most people know female mosquitoes feed on sweet plant nectar to survive.
答案 C [细节理解题。根据文章第三段可知答案为C。]
8．We can infer from the text that ________.
A．there will be fewer and fewer mosquitoes in Mali.
B．the new mosquito killer has been widely used in Africa.
C．malaria will become the most dangerous disease in the poorest areas of Africa.
D．the Israeli researchers want to develop a substance more attractive to the mosquitoes.
答案 D [推理判断题。根据文章倒数第二段The Israeli researchers now hope to develop a bait that is even more desirable to the malaria mosquitoes可知答案为D。]
Unit 2 Growing pains
时间：30分钟
Ⅰ.单项填空
1．The enemy had no choice but ________ their arms and ________.
A．lie down，give in
B．lay down，give in
C．to lay down，give in
D．to lie down，to give in
答案 C [have no choice but后接带to的不定式，且and与不定式之间存在并列关系。lay down one’s arms是“放下武器”之意。]
2．In order to look after her sick mother，she asked for a month's ________.
A．holiday
B．vacation
C．leave
D．rest
答案 C [holiday与vacation指“度假”，而leave指因事(病)而请的假。]
3．________ alone in a dark room，the little girl was so frightened as to cry loudly.
A．Leaving
B．Left
C．Being left
D．To be left
答案 B [此题考查非谓语动词。由于leave与句子主语the little girl是被动关系，所以应该用过去分词作状语。]
4．—Why can't you and Bill go to the movies tonight?
—We are ________ a history test tomorrow.
A．supposed to having
B．supposedly to have
C．supposed to have
D．supposedly to having
答案 C [答语意为“我们明天应有历史测验”。be supposed to do为固定词组，意为“理应做”。]
5．I ________ go shopping when the telephone rang.
A．was about to
B．was just to
C．had to
D．wanted to
答案 A [be about to do sth相当于be on the point of doing sth/be just going to do sth意为“马上就要做某事”，一般不与时间状语连用；be to do sth指按计划或职责、义务要求必须做某事或即将发生的动作；have to do sth不得不做某事；want to do sth想要做某事。]
6．It is said in Australia there is more land than the government knows ________.
A．it what to do with B．what to do it with
C．what to do with it
D．to do that with it
答案 C [do with中的do为及物动词，且what置于动词不定式之前。]
7．The teacher stressed again that the students should not ________ any important details while retelling the story.
A．bring out
B．let out
C．leave out
D．make out
答案 C [考查动词短语辨析。句意为“老师再次强调说，学生在复述这个故事的时候不应遗漏重要的细节”。因此选leave out，表示“遗漏；省略掉”。其他短语的含义：bring out 使……显现；let out发出(喊叫)；放出(气味、光等)；make out辨别出。]
8．The children were left ________ of a neighbour when they were on holiday.
A．in charge
B．in the charge
C．under charge
D．at charge
答案 B [in the charge of...表示“由……掌管；由……负责”。]
9．________ you've got a chance，you might as well make full use of it.
A．Now that
B．After
C．Although
D．As soon as
答案 A [根据题意“既然你得到了一个机会，你还是充分利用它为好”可知，B、C、D三项均不符合题意。]
10．How I wish every family ________ a large house with a beautiful garden!
A．has
B．had
C．will have
D．had had
答案 B [wish后接宾语从句，表示现在无法实现的愿望时，从句要用一般过去时。]
11．Schools in the south tend to be better equipped，________ those in the north are relatively poor.
A．while
B．since
C．when
D．as
答案 A [此处while有强调对比的意思。]
12．Many people who had seen the film were afraid to go to the forest when they remembered the scenes ________ people were eaten by the tiger.
A．in which
B．by which
C．which
D．that
答案 A [由四个选项可知应填入定语从句的引导词，先行词是表示地点的scenes，故用in which。]
13．The passenger was tired and walked slowly but he got home ________.
A．after all
B．at all
C．above all
D．in all
答案 A [句意为“这位旅客很疲劳，走得很慢，但他终究还是到家了”。从句意可知，后句表达的是转折意义。B、C、D三项没有此用法。]
14．The bus driver insisted that he ________ at a normal speed and therefore ________ for the child's death.
A．drive；not answer
B．was driving；shouldn't answer
C．should drive；shouldn't have answered
D．drove；shouldn't answer
答案 D [句意为“那位公共汽车司机坚持认为他是以正常速度行驶，因此他不应该对那个小孩的死负责”。insist在表示“坚持；坚持说”时，从句应用陈述语气。]
15．Who do you ______ we send to cover the bank robbery?
A．know
B．suppose
C．think
D．suggest
答案 D [do you suggest是插入语，只有suggest才要求后面的send是原形。]
Ⅱ.阅读理解
A
LOS ANGELES—Old people who keep walking a relatively long distance may be less likely to suffer from cognitive(认知的) decline，a new study suggests.
“By walking regularly，and maintaining a little bit of moderate physical activity，you can reduce your likelihood of developing Alzheimer's disease and spare brain tissue，” Kirk I．Erickson，the study's lead author，said.
Erickson and his colleagues from the University of Pittsburgh began to establish a link between walking and memory in 1989.
According to the report on their study published online Wednesday in Neurology，an official journal of the American Academy of Neurology，researchers tracked the physical activity and cognitive patterns of nearly 300 adults.
At the very beginning，all participants，on average 78 years old and about two－thirds being women，were in good cognitive health.The researchers charted how many blocks each person walked in one week.
Nine years later，the participants were given a MRI scan to measure their brain size.All of them were deemed to be“cognitively normal.”
But after four more years，test showed a little more than one third of the participants had developed a mild cognitive impairment or dementia.
By correlating cognitive health，brain scans and walking patterns，the research team found that being more physically active appeared to lower the risk of developing cognitive impairment.
As to how much walking would help prevent cognitive decline，the researchers suggested that walking about six miles，or 9.6 km，per week appears to protect the brain against shrinking in old age.
The researchers said the relationship between walking and gray matter volume appears to apply only to people who regularly walk relatively long distances.
The more someone walks，the more gray matter tissue the person will have a decade or more down the road in regions of the brain，namely the hippocampus，the inferior frontal gyrus and the supplementary motor area，that are central to cognition.
And among the more physically active participants who had retained more gray matter a decade out，the chances of developing cognitive impairment were cut in half，the study said.
【语篇解读】 老年人进行适当、有规律的散步能减少认知能力下降的可能性。
1．When did the old people tested in the research begin to show difference in cognitive decline?
A．When they were 78 years old.
B．When they were 87 years old.
C．Between the year 1989 and 1998.
D．Between the year 1998 and 2002.
答案 D [细节理解题。从文中第三段可知，实验于1989年开始，在9＋4年之后，测试结果显示实验对象在认知能力上已经存在差异。]
2．What do we know about the gray matter?
A．The quantity of it has a decisive influence on the cognitive ability.
B．It's something in the muscle that develops from physical activity.
C．It's a brain disease that will damage the cognitive ability.
D．It's some brain matter that can cure brain diseases.
答案 A [细节理解题。从文章最后三段可知，体力运动较积极的人脑部的gray matter较多，可推断gray matter的数量可显示认知能力水平。]
3．Which of the following is closest in meaning to the underlined word “shrinking” in Para.9?
A．worrying.
B．weakening.
C．widening.
D．wandering.
答案 B [词义猜测题。根据文意可知，walking可防止脑部萎缩，功能退化，与答案B(weakening)最相近。]
4．What is TRUE about the research?
A．Men and women differ in the decline of cognition.
B．The research subjects were required to walk blocks per week.
C．The findings suggest the more walking，the better health.
D．There were about 200 women involved in the research.
答案 D [正误判断题。从文中第四、五段可知，测试对象约300人，其中约2/3为女性。]
B
Israeli researchers say they have developed a substance that attracts and kills the mosquitoes infected with the malaria parasite(疟原虫)．However，the sweet－smelling substance is said to be harmless to people and animals，Scientists at Hebrew University in Jerusalem developed the sugary bait by combining fruit juice oils and boric acid(硼酸)．The fruit juice oils get the attention of the mosquitoes，and the boric acid kills the insects when they eat it.
The scientists took the sweet boric acid bait to the West African nation of Mali.They sprayed(喷洒) it on the plants near the man－made ponds which are home to “Anopheles Gambiae”，the mosquitoes that carry the most deadly form of malaria(疟疾)．The researchers also placed a sweet－smelling spray on the grasses near other ponds.But it contained no boric acid.Both of the substances also contained a substance that would mark any mosquito that came in contact with the bait.In this way the scientists could count the mosquitoes that fed on it.
Yosef Schlein，an expert on the insects that affect human health，led the sweet bait research.He says thirty－eight days of results show the sweet boric acid bait proved very effective in killing mosquitoes.At the ponds treated only with sweet－smelling bait，Professor Schlein says，more than seventy－five percent of mosquitoes fed on the false bait.He says most people do not know that female mosquitoes feed on sweet plant nectar to survive.
The Israeli researchers now hope to develop a bait that is even more desirable to the malaria mosquitoes.
Boric acid is generally safe for human beings and other mammals.Professor Schlein says scientists might be able to develop a mosquito bait for enclosed spaces.Boric acid has been used to kill other insects，including cockroaches，termites and ants inside homes since the middle of last century.
【语篇解读】 科学家们发现一种新的、对人类无害的、可以杀死疟蚊的方法。
5．Which of the following is TRUE about the sweet－smelling substance?
A．It is said to be harmless to people but harmful to animals.
B．It attracts the mosquitoes but fails to kill them most of the time.
C．It is actually created by Professor Schlein.
D．It is a mixture of fruit juice oils and boric acid.
答案 D [细节理解题。根据文章第一段可知答案为D。]
6．What does the underlined word “it” in Paragraph 2 refer to?
A．A sweetsmelling spray.
B．The fruit juice oil.
C．A sweetsmelling spray with boric acid.
D．The sweet boric acid bait.
答案 A [词义指代题。根据文章第二段中The researchers also placed a sweetsmelling spray on the grasses near other ponds.But it contained no boric acid可知答案为A。]
7．What do we know about Yosef Schlein?
A．He offered help to the researchers in the sweet bait research.
B．He is an expert on the substances that affect human health.
C．He thinks the sweet boric acid bait kills the malaria mosquitoes very effectively.
D．He thinks most people know female mosquitoes feed on sweet plant nectar to survive.
答案 C [细节理解题。根据文章第三段可知答案为C。]
8．We can infer from the text that ________.
A．there will be fewer and fewer mosquitoes in Mali.
B．the new mosquito killer has been widely used in Africa.
C．malaria will become the most dangerous disease in the poorest areas of Africa.
D．the Israeli researchers want to develop a substance more attractive to the mosquitoes.
答案 D [推理判断题。根据文章倒数第二段The Israeli researchers now hope to develop a bait that is even more desirable to the malaria mosquitoes可知答案为D。]
