人教版（2019） 必修 第三册 Unit 5 The Value of Money 单元加餐练（含答案）
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| 名称 | 人教版（2019） 必修 第三册 Unit 5 The Value of Money 单元加餐练（含答案） |  | |
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| 科目 | 英语 | ||
| 更新时间 | 2022-12-26 21:14:22 | ||
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单元加餐练
Ⅰ.阅读理解
Since I was born and brought up in a rural town, I have a great interest in nature. Using the chance of studying abroad in my second year at college, I decided to go to Canada just because I wanted to see the beautiful phenomena there. So after I finished the study program, I went to Yellowknife in the Northwest Territories.
I clearly remember the sixth night in Yellowknife. Suddenly my host mother came to my room around 8 p．m. and told me to change clothes and go outside quickly carrying her camera.
The northern lights were flickering (闪烁) in the sky! I was shocked and just stood there with my mouth open. I forgot to take pictures of the mysterious lights.
Since that night, whenever it was sunny, I went outside at night and looked at the sky. It was so cold that I lost all feeling in my hands and feet.
As I took pictures of the northern lights, I came to find a characteristic movement of the lights. They first appear in the north part of the sky and then they gradually come down to the south part of the sky. After that, suddenly, they come in the middle of the north and south only for a while, which is the time when the best northern lights can be seen. Since it is only a few seconds for the northern lights to come down to the middle of the sky, it is very hard to get good pictures.
The stronger the sun acts, the better and stronger the northern lights flicker in the sky. That's because they come about from the collisions (碰撞) between atmospheric gases and the solar wind. Much more solar wind comes to the earth when the sun is active, which leads to the best northern lights. And the colors of the northern lights depend on the height of the collisions and the kinds of gases.
语篇解读：本文是一篇记叙文。作者出生在乡下，对大自然有浓厚的兴趣。他利用大二出国学习的机会去了加拿大，因为他想观看那里美丽的景象。
1．Why did the host mother ask the author to go out
A．She wanted to take a picture of him.
B．She wanted to take a walk with him.
C．She wanted to tell him something important.
D．She wanted him to see the northern lights.
解析：选D 推理判断题。根据房东妈妈让作者立刻到外面去并带上照相机以及下文对northern lights的描写可知，房东妈妈叫作者到外面去的目的是观看北极光。
2．The author forgot to take pictures after going out because .
A．the host mother didn't remind him to take the camera
B．he was shocked by the wonderful sight
C．the lights flickering in the sky disappeared too soon
D．he lost all feeling in his hands and feet
解析：选B 细节理解题。根据第三段中的“I was shocked and just stood there with my mouth open”可知，作者为观看到的景象所震惊，所以忘了照相。
3．When is the best time to see the northern lights
A．When they appear in the north part of the sky.
B．When they come down to the south part of the sky.
C．When they are between the north and south.
D．When they rise in the east part of the sky.
解析：选C 细节理解题。从第五段中的第三句话可知，当北极光位于北部和南部中间时是最佳观看时间，故选C项。
4．What does the last paragraph mainly tell us
A．Ways to take good pictures.
B．The relationship between the sun and the northern lights.
C．The colors of the northern lights.
D．The time of the best northern lights.
解析：选B 段落大意题。根据最后一段的内容，尤其是第一句“The stronger the sun acts, the better and stronger the northern lights flicker in the sky”可知，本段主要介绍了太阳和北极光的关系。
Ⅱ.阅读七选五
How to Stay Positive No Matter What Happens
No matter what happens, you can stay positive by following a few simple steps.
1 If you have something to look forward to that motivates you and makes you feel needed, your self esteem will skyrocket. Pick one or two activities, such as doing volunteer work or teaching your favorite lessons to others, and promise to do it on a regular basis.
Pick a goal that is important to you and reach for it. Create a structured schedule that leads you to a goal that is important to you. Make it something you are passionate about and enjoy talking about. 2
Keep away from negative people. If certain people always make you down, minimize your time around them. 3 If you don't have a strong social structure, then start taking part in some activities you enjoy so that you can meet people with similar interests.
Build close connections with family and friends. Reach out and keep in touch with people you are close to. 4 Go for walks. Call old friends. Fill your life with the small important things that keep your spirits up.
5 A lot of us spend time struggling to achieve our goals that don't suit us and aren't meaningful to us. If you get stuck in a job or relationship that doesn't work for you, do something about it. Don't stay in the situations that add to your stress and anxiety levels.
A．Do what works for you.
B．Deal with negative situations positively.
C．You can stay positive by living a regular life.
D．Stay positive by filling your life with meaningful activities.
E．Working towards something every day will add positivity to your life.
F．Go out of your way to spend time on fun activities that you can do together.
G．Surround yourself with people who lift you up and give you encouragement.
语篇解读：本文是一篇说明文。介绍如何保持积极乐观的心态。
1．解析：选D 根据本段后两句中的说明和举例可以概括出本段的主旨，即要让生活充满有意义的活动以保持积极乐观的心态，故选D。
2．解析：选E 选项中的“Working towards something”与上一句中的it都指的是奋斗目标，与本段的首句相对应，故选E。
3．解析：选G 本选项中的“lift you up”与上一句中的“make you down”相对应，两句构成对比关系，说明要远离让你情绪低落的人，多和鼓励你的人在一起，故选G。
4．解析：选F 本选项承接上一句来说明如何和周围的人建立联系，选项与后两句之间构成平行并列关系，故选F。
5．解析：选A 本段主要讲不要做那些对你毫无意义的事，即要做那些你能做好并对你有益的事，故选A。
Ⅲ.完形填空
My friends and I had just finished our lunch at a restaurant when it started to rain heavily. When it became 1 , I decided to brave the rain to get my 2 not very far away.
My friends 3 that I shouldn't go, mainly because I was seven month pregnant (怀孕的) then. I told them that I'd be very 4 . One of them wanted to come with me but I insisted that she should stay with another friend who needed 5 with her little baby.
Then I ran to my car. At a crossing, a car 6 and a passenger got out with a(n) 7 . Before I 8 what was happening, he walked right up to me and told me he'd walk me to my home. I was embarrassed and refused, 9 he insisted on offering me his help.
During our walk, he kept telling me to walk slower, as the ground was 10 . When we got to my car, I 11 him and we parted. I did not know his 12 and may not even recognize him now. Did he stop for me 13 ？ I'll never know.
So 14 did I pay his kindness forward I was at home when I 15 two workers walking in the heavy rain. They were 16 on their way home. I went out and gave them an umbrella. They seemed 17 , but I told them they should take the umbrella and 18 it. They took the umbrella and were very 19 . And like me, they probably wondered why a stranger was giving such 20 .
语篇解读：本文是一篇记叙文。作者在雨中跑着，有个好心人帮她撑起了雨伞，作者很感动。回到家里，作者看到大雨中有两个工人在街道上行走，于是，给他们送去了雨伞。
1．A.lighter B．colder
C．heavier D．warmer
解析：选A 根据下文“ ... I decided to brave the rain ...”可知，当雨“小点(lighter)”的时候，作者决定出去开车。
2．A.bag B．coat
C．report D．car
解析：选D 根据下文“When we got to my car ...”可知，作者是去开“车(car)”。
3．A.proved B．argued
C．ordered D．guessed
解析：选B 根据下文“ ... because I was seven month pregnant then”可知，作者的朋友们“认为(argued)”作者不应该去。
4．A.calm B．strong
C．brave D．careful
解析：选D 根据上文“... I was seven month pregnant then”可知，因为她怀有七个月的身孕，所以她告诉朋友们她会“小心的(careful)”。
5．A.time B．money
C．help D．food
解析：选C 根据下文“ ... her little baby”可知，有个朋友想和作者一起去，但是作者认为她应该和另一个朋友在一起因为她的小孩需要“帮忙(help)”。
6．A.stopped B．turned
C．started D．passed
解析：选A 根据下文“ ... a passenger got out ...”可知，一辆小车“停(stopped)”了下来。
7．A.gift B．umbrella
C．box D．key
解析：选B 因为是在下雨，所以乘客手里拿着“伞(umbrella)”。
8．A.knew B．decided
C．expected D．remembered
解析：选A 根据后文“ ... he walked right up to me and told me he'd walk me to my home”可知，作者还没“意识到(knew)”发生了什么事情，这个男人就走到她面前了。
9．A.so B．but
C．and D．as
解析：选B 根据上文“I was embarrassed and refused ...”可知，作者感到尴尬所以拒绝了，“但是(but)”他坚持给予帮助。
10．A.wet B．dirty
C．dry D．hard
解析：选A 由于天下着雨，所以地面是“湿的(wet)”。
11．A.paid B．ignored
C．thanked D．accepted
解析：选C 到达作者放车的地方，作者“感谢(thanked)”了他，然后就分开了。
12．A.task B．name
C．plan D．home
解析：选B 根据下文“ ... may not even recognize him now”可知，作者不知道他的“名字(name)”，甚至现在都认不出他。
13．A.in fun B．by mistake
C．at once D．on purpose
解析：选D 作者感到好奇：他是“有意(on purpose)”停下来帮助我的吗？
14．A.how B．why
C．when D．where
解析：选A 根据作者在下文中的做法可知，作者在想“怎么样(how)”把这种善意传递下去。
15．A.missed B．called
C．noticed D．chose
解析：选C 下文中提到，作者去帮助这些工人，说明此时她“注意到(noticed)”他们在大雨中行走。
16．A.luckily B．probably
C．finally D．surely
解析：选B 作者并不认识他们，所以对他们的情况只能是推测，他们“很可能(probably)”是在回家的路上。
17．A.surprised B．satisfied
C．frightened D．worried
解析：选A 他们看起来有些“吃惊(surprised)”。
18．A.lend B．repair
C．keep D．clean
解析：选C 作者告诉他们把伞带着，并“留着(keep)”用吧。
19．A.free B．grateful
C．quiet D．proud
解析：选B 听了作者的话，他们接过了伞，很“感激(grateful)”作者。
20．A.energy B．hope
C．courage D．kindness
解析：选D 根据最后一段的“... pay his kindness forward”可知，他们也可能会和作者一样不明白为什么一个陌生人会做这样的“善事(kindness)”。
Ⅳ.语法填空
Parkour (跑酷) is a sport which trains people to deal with any physical obstacles in their path. It is not a competition but a physical training. A person joining in parkour is called a traceur. Traceurs run along a path and use only their bodies to deal with the obstacles in the most efficient way. Parkour pays more attention to efficiency, 1 (make) it different from the similar practice of free running. Parkour 2 (common) includes running, jumping, climbing, rolling and other similar types of physical movements. Many teenagers think that parkour is quite 3 cool sport. They have great interest in it.
The 4 (invent) of parkour can't 5 (give) to one person because many people have worked on it. A French officer developed the earlier form of parkour. The term “parkour” was first introduced by David Belle and Sebastian Foucan in the early 1980s. 6 that time, they were two teenagers. This sport 7 (become) more popular in the 1990s when many films were made on it.
8 makes parkour different from other sports is its power to bring people together. It allows traceurs to forget the 9 (society) and other problems, and makes a large group work and grow together instead of competing with each other. People can benefit from parkour as it can make them stronger. Still, it also influences one's thought process by improving self confidence and critical thinking skills. In this way, parkour allows one to deal with 10 (difficulty) in daily life if he or she deals with them through parkour.
语篇解读：本文是一篇说明文，主要介绍了跑酷这项运动。
1．making 考查非谓语动词。分析句子结构可知，空处考查非谓语动词且表示自然而然的结果，故用现在分词作结果状语。
2．commonly 考查副词。分析句子结构可知，此处应用副词修饰动词。
3．a 考查冠词。此处构成“quite＋a/an＋adj.＋n.”结构，且cool的发音以辅音音素开头，故填a。
4．invention 考查名词。分析句子结构可知，空处作主语，且空前有The修饰，故用名词形式。
5．be given 考查动词的语态。此处主语与give之间为动宾关系，且情态动词后用动词原形。故填be given。
6．At 考查介词。at that time意为“在那时候”，为固定搭配。
7．became 考查动词的时态。句中in the 1990s为表示过去的时间，所以此处用一般过去时。
8．What 考查主语从句。空处引导主语从句，且在从句中作主语，故填What。
9．social 考查形容词。此处修饰名词problems，故用形容词。
10．difficulties 考查名词的数。根据下文中的“them”可知，此处应用名词复数。
Ⅴ.应用文写作
假定你是李华，你的美国朋友Tom打算暑假来北京骑车旅游。请你根据以下信息给他写一封邮件介绍相关情况，并对他的旅行提出建议。
1．地势平坦，适合骑车。
2．用护照可以租到公共自行车。
3．停车、修车都很方便。
注意：1.词数80左右；
2．邮件的开头和结尾已给出(不计入总词数)。
参考词汇：rent租用
Dear Tom，
I am happy to hear about your plan to travel around Beijing by bike.
Yours，
Li Hua
参考范文：
Dear Tom，
I am happy to hear about your plan to travel around Beijing by bike. It is a good city for cycling because it is flat and therefore is convenient for bikes. And you don't have to buy a new bike since you can rent one in Beijing with your passport. Moreover, you can always find a mechanic in the city if your bike breaks down on the road. Parking lots are everywhere, too.
Before you start a day's ride, I suggest you spend some time preparing for it，and you may want to take a map with you in case you get lost. I hope you can enjoy your cycling experience in Beijing, and above all, keep safe. Let me know if there's anything else I can help.
Yours，
Li Hua
第 7 页 共 7 页
单元加餐练
Ⅰ.阅读理解
Since I was born and brought up in a rural town, I have a great interest in nature. Using the chance of studying abroad in my second year at college, I decided to go to Canada just because I wanted to see the beautiful phenomena there. So after I finished the study program, I went to Yellowknife in the Northwest Territories.
I clearly remember the sixth night in Yellowknife. Suddenly my host mother came to my room around 8 p．m. and told me to change clothes and go outside quickly carrying her camera.
The northern lights were flickering (闪烁) in the sky! I was shocked and just stood there with my mouth open. I forgot to take pictures of the mysterious lights.
Since that night, whenever it was sunny, I went outside at night and looked at the sky. It was so cold that I lost all feeling in my hands and feet.
As I took pictures of the northern lights, I came to find a characteristic movement of the lights. They first appear in the north part of the sky and then they gradually come down to the south part of the sky. After that, suddenly, they come in the middle of the north and south only for a while, which is the time when the best northern lights can be seen. Since it is only a few seconds for the northern lights to come down to the middle of the sky, it is very hard to get good pictures.
The stronger the sun acts, the better and stronger the northern lights flicker in the sky. That's because they come about from the collisions (碰撞) between atmospheric gases and the solar wind. Much more solar wind comes to the earth when the sun is active, which leads to the best northern lights. And the colors of the northern lights depend on the height of the collisions and the kinds of gases.
语篇解读：本文是一篇记叙文。作者出生在乡下，对大自然有浓厚的兴趣。他利用大二出国学习的机会去了加拿大，因为他想观看那里美丽的景象。
1．Why did the host mother ask the author to go out
A．She wanted to take a picture of him.
B．She wanted to take a walk with him.
C．She wanted to tell him something important.
D．She wanted him to see the northern lights.
解析：选D 推理判断题。根据房东妈妈让作者立刻到外面去并带上照相机以及下文对northern lights的描写可知，房东妈妈叫作者到外面去的目的是观看北极光。
2．The author forgot to take pictures after going out because .
A．the host mother didn't remind him to take the camera
B．he was shocked by the wonderful sight
C．the lights flickering in the sky disappeared too soon
D．he lost all feeling in his hands and feet
解析：选B 细节理解题。根据第三段中的“I was shocked and just stood there with my mouth open”可知，作者为观看到的景象所震惊，所以忘了照相。
3．When is the best time to see the northern lights
A．When they appear in the north part of the sky.
B．When they come down to the south part of the sky.
C．When they are between the north and south.
D．When they rise in the east part of the sky.
解析：选C 细节理解题。从第五段中的第三句话可知，当北极光位于北部和南部中间时是最佳观看时间，故选C项。
4．What does the last paragraph mainly tell us
A．Ways to take good pictures.
B．The relationship between the sun and the northern lights.
C．The colors of the northern lights.
D．The time of the best northern lights.
解析：选B 段落大意题。根据最后一段的内容，尤其是第一句“The stronger the sun acts, the better and stronger the northern lights flicker in the sky”可知，本段主要介绍了太阳和北极光的关系。
Ⅱ.阅读七选五
How to Stay Positive No Matter What Happens
No matter what happens, you can stay positive by following a few simple steps.
1 If you have something to look forward to that motivates you and makes you feel needed, your self esteem will skyrocket. Pick one or two activities, such as doing volunteer work or teaching your favorite lessons to others, and promise to do it on a regular basis.
Pick a goal that is important to you and reach for it. Create a structured schedule that leads you to a goal that is important to you. Make it something you are passionate about and enjoy talking about. 2
Keep away from negative people. If certain people always make you down, minimize your time around them. 3 If you don't have a strong social structure, then start taking part in some activities you enjoy so that you can meet people with similar interests.
Build close connections with family and friends. Reach out and keep in touch with people you are close to. 4 Go for walks. Call old friends. Fill your life with the small important things that keep your spirits up.
5 A lot of us spend time struggling to achieve our goals that don't suit us and aren't meaningful to us. If you get stuck in a job or relationship that doesn't work for you, do something about it. Don't stay in the situations that add to your stress and anxiety levels.
A．Do what works for you.
B．Deal with negative situations positively.
C．You can stay positive by living a regular life.
D．Stay positive by filling your life with meaningful activities.
E．Working towards something every day will add positivity to your life.
F．Go out of your way to spend time on fun activities that you can do together.
G．Surround yourself with people who lift you up and give you encouragement.
语篇解读：本文是一篇说明文。介绍如何保持积极乐观的心态。
1．解析：选D 根据本段后两句中的说明和举例可以概括出本段的主旨，即要让生活充满有意义的活动以保持积极乐观的心态，故选D。
2．解析：选E 选项中的“Working towards something”与上一句中的it都指的是奋斗目标，与本段的首句相对应，故选E。
3．解析：选G 本选项中的“lift you up”与上一句中的“make you down”相对应，两句构成对比关系，说明要远离让你情绪低落的人，多和鼓励你的人在一起，故选G。
4．解析：选F 本选项承接上一句来说明如何和周围的人建立联系，选项与后两句之间构成平行并列关系，故选F。
5．解析：选A 本段主要讲不要做那些对你毫无意义的事，即要做那些你能做好并对你有益的事，故选A。
Ⅲ.完形填空
My friends and I had just finished our lunch at a restaurant when it started to rain heavily. When it became 1 , I decided to brave the rain to get my 2 not very far away.
My friends 3 that I shouldn't go, mainly because I was seven month pregnant (怀孕的) then. I told them that I'd be very 4 . One of them wanted to come with me but I insisted that she should stay with another friend who needed 5 with her little baby.
Then I ran to my car. At a crossing, a car 6 and a passenger got out with a(n) 7 . Before I 8 what was happening, he walked right up to me and told me he'd walk me to my home. I was embarrassed and refused, 9 he insisted on offering me his help.
During our walk, he kept telling me to walk slower, as the ground was 10 . When we got to my car, I 11 him and we parted. I did not know his 12 and may not even recognize him now. Did he stop for me 13 ？ I'll never know.
So 14 did I pay his kindness forward I was at home when I 15 two workers walking in the heavy rain. They were 16 on their way home. I went out and gave them an umbrella. They seemed 17 , but I told them they should take the umbrella and 18 it. They took the umbrella and were very 19 . And like me, they probably wondered why a stranger was giving such 20 .
语篇解读：本文是一篇记叙文。作者在雨中跑着，有个好心人帮她撑起了雨伞，作者很感动。回到家里，作者看到大雨中有两个工人在街道上行走，于是，给他们送去了雨伞。
1．A.lighter B．colder
C．heavier D．warmer
解析：选A 根据下文“ ... I decided to brave the rain ...”可知，当雨“小点(lighter)”的时候，作者决定出去开车。
2．A.bag B．coat
C．report D．car
解析：选D 根据下文“When we got to my car ...”可知，作者是去开“车(car)”。
3．A.proved B．argued
C．ordered D．guessed
解析：选B 根据下文“ ... because I was seven month pregnant then”可知，作者的朋友们“认为(argued)”作者不应该去。
4．A.calm B．strong
C．brave D．careful
解析：选D 根据上文“... I was seven month pregnant then”可知，因为她怀有七个月的身孕，所以她告诉朋友们她会“小心的(careful)”。
5．A.time B．money
C．help D．food
解析：选C 根据下文“ ... her little baby”可知，有个朋友想和作者一起去，但是作者认为她应该和另一个朋友在一起因为她的小孩需要“帮忙(help)”。
6．A.stopped B．turned
C．started D．passed
解析：选A 根据下文“ ... a passenger got out ...”可知，一辆小车“停(stopped)”了下来。
7．A.gift B．umbrella
C．box D．key
解析：选B 因为是在下雨，所以乘客手里拿着“伞(umbrella)”。
8．A.knew B．decided
C．expected D．remembered
解析：选A 根据后文“ ... he walked right up to me and told me he'd walk me to my home”可知，作者还没“意识到(knew)”发生了什么事情，这个男人就走到她面前了。
9．A.so B．but
C．and D．as
解析：选B 根据上文“I was embarrassed and refused ...”可知，作者感到尴尬所以拒绝了，“但是(but)”他坚持给予帮助。
10．A.wet B．dirty
C．dry D．hard
解析：选A 由于天下着雨，所以地面是“湿的(wet)”。
11．A.paid B．ignored
C．thanked D．accepted
解析：选C 到达作者放车的地方，作者“感谢(thanked)”了他，然后就分开了。
12．A.task B．name
C．plan D．home
解析：选B 根据下文“ ... may not even recognize him now”可知，作者不知道他的“名字(name)”，甚至现在都认不出他。
13．A.in fun B．by mistake
C．at once D．on purpose
解析：选D 作者感到好奇：他是“有意(on purpose)”停下来帮助我的吗？
14．A.how B．why
C．when D．where
解析：选A 根据作者在下文中的做法可知，作者在想“怎么样(how)”把这种善意传递下去。
15．A.missed B．called
C．noticed D．chose
解析：选C 下文中提到，作者去帮助这些工人，说明此时她“注意到(noticed)”他们在大雨中行走。
16．A.luckily B．probably
C．finally D．surely
解析：选B 作者并不认识他们，所以对他们的情况只能是推测，他们“很可能(probably)”是在回家的路上。
17．A.surprised B．satisfied
C．frightened D．worried
解析：选A 他们看起来有些“吃惊(surprised)”。
18．A.lend B．repair
C．keep D．clean
解析：选C 作者告诉他们把伞带着，并“留着(keep)”用吧。
19．A.free B．grateful
C．quiet D．proud
解析：选B 听了作者的话，他们接过了伞，很“感激(grateful)”作者。
20．A.energy B．hope
C．courage D．kindness
解析：选D 根据最后一段的“... pay his kindness forward”可知，他们也可能会和作者一样不明白为什么一个陌生人会做这样的“善事(kindness)”。
Ⅳ.语法填空
Parkour (跑酷) is a sport which trains people to deal with any physical obstacles in their path. It is not a competition but a physical training. A person joining in parkour is called a traceur. Traceurs run along a path and use only their bodies to deal with the obstacles in the most efficient way. Parkour pays more attention to efficiency, 1 (make) it different from the similar practice of free running. Parkour 2 (common) includes running, jumping, climbing, rolling and other similar types of physical movements. Many teenagers think that parkour is quite 3 cool sport. They have great interest in it.
The 4 (invent) of parkour can't 5 (give) to one person because many people have worked on it. A French officer developed the earlier form of parkour. The term “parkour” was first introduced by David Belle and Sebastian Foucan in the early 1980s. 6 that time, they were two teenagers. This sport 7 (become) more popular in the 1990s when many films were made on it.
8 makes parkour different from other sports is its power to bring people together. It allows traceurs to forget the 9 (society) and other problems, and makes a large group work and grow together instead of competing with each other. People can benefit from parkour as it can make them stronger. Still, it also influences one's thought process by improving self confidence and critical thinking skills. In this way, parkour allows one to deal with 10 (difficulty) in daily life if he or she deals with them through parkour.
语篇解读：本文是一篇说明文，主要介绍了跑酷这项运动。
1．making 考查非谓语动词。分析句子结构可知，空处考查非谓语动词且表示自然而然的结果，故用现在分词作结果状语。
2．commonly 考查副词。分析句子结构可知，此处应用副词修饰动词。
3．a 考查冠词。此处构成“quite＋a/an＋adj.＋n.”结构，且cool的发音以辅音音素开头，故填a。
4．invention 考查名词。分析句子结构可知，空处作主语，且空前有The修饰，故用名词形式。
5．be given 考查动词的语态。此处主语与give之间为动宾关系，且情态动词后用动词原形。故填be given。
6．At 考查介词。at that time意为“在那时候”，为固定搭配。
7．became 考查动词的时态。句中in the 1990s为表示过去的时间，所以此处用一般过去时。
8．What 考查主语从句。空处引导主语从句，且在从句中作主语，故填What。
9．social 考查形容词。此处修饰名词problems，故用形容词。
10．difficulties 考查名词的数。根据下文中的“them”可知，此处应用名词复数。
Ⅴ.应用文写作
假定你是李华，你的美国朋友Tom打算暑假来北京骑车旅游。请你根据以下信息给他写一封邮件介绍相关情况，并对他的旅行提出建议。
1．地势平坦，适合骑车。
2．用护照可以租到公共自行车。
3．停车、修车都很方便。
注意：1.词数80左右；
2．邮件的开头和结尾已给出(不计入总词数)。
参考词汇：rent租用
Dear Tom，
I am happy to hear about your plan to travel around Beijing by bike.
Yours，
Li Hua
参考范文：
Dear Tom，
I am happy to hear about your plan to travel around Beijing by bike. It is a good city for cycling because it is flat and therefore is convenient for bikes. And you don't have to buy a new bike since you can rent one in Beijing with your passport. Moreover, you can always find a mechanic in the city if your bike breaks down on the road. Parking lots are everywhere, too.
Before you start a day's ride, I suggest you spend some time preparing for it，and you may want to take a map with you in case you get lost. I hope you can enjoy your cycling experience in Beijing, and above all, keep safe. Let me know if there's anything else I can help.
Yours，
Li Hua