内容正文:
Unit 3 Period 2
Grammar & Usage 分层练习
基础达标 01
能力提升 02
拓展培优 03
一 、根据提示写出正确的单词
1. When lion cubs(幼崽) are young, the mother stays with them while the father ____________ (搜寻)for food.
2. Many online shops will give customers a great discount(折扣) to ____________ (促销)their goods.
3. The rent of my ____________(公寓套房) is very high, for it is convenient for the shopping center and the railway station.
4. Most of his ____________ (收入)is spent on his house every month.
5. People should ____________(遵守) the traffic rules when they travel to a new place.
6. Everyone has to show their ____________(身份) cards when they buy a train ticket in China.
7. Our department usually begins a new week after reviewing the ____________(先前的) week’s work.
8. The teacher decided to give the task to the student who had a strong sense of ____________(责任).
9. According to the law of the country, players should be allowed to ____________ (赚取) money from advertising.
10. For many people, belongings are the most essential ____________(来源) of meaning.
二、用方框内短语的适当形式填空
come true;on show;in honour of;pass down;fall on;put on;hand in
1.What do you think of Xiao Yang’s suggestion that we a play at the English evening?
2.The gallery owner Anthony Brunelli said of the 10 pieces about to go , six were already sold and the remaining four could fetch between$8,000—10,000.
3.After the country’s National Day holiday travel rush dazzled(使倾倒) many foreigners, Chinese young people are also preparing for Halloween, which Saturday.
4.I hope that through this learning, the excellence of traditional Chinese culture can be to us better.
5.His colleagues and former students have published his essays his thirty years’ service at the university.
6.All applications must be within the next two weeks, by the end of the month at the latest.
7.I believe in myself, and I’m sure I can make my dream .
三、单句语法填空。
1. Whenever we had trouble, he ________(come) to help us.
2. Eight policemen spent two years ________(comb) through the evidence.
3. ________ working together in unity with my friends, I can accomplish things that are impossible to finish alone.
4. ________(hunt) for the rare animal, they searched everywhere in the mountain.
5. I was about to say ________ you interrupted me, so I don't want to discuss this today.
6. The retired man donated most of his savings to the school damaged by the earthquake, ________(enable) the students to return to their classrooms.
7. This custom ________(pass) down since the 18th century.
8. Miss Zhang said she________ (visit) the Great Wall next summer.
9. I wasn't sure whether he (lend) me his book the next morning.
10. —Tom, you didn't come to the party last night.
—I ________(go), but I suddenly remembered I had homework to do.
四、按要求完成句子
1. Last week he ________________________ (答应过他会回来), but he hasn't arrived until now.
2. Tom ______________________________ (正要关窗户这时) his attention was caught by a bird.
3. I thought he ____________________ (不会参加晚会), but to my surprise, he came.
4. She didn't know that the accident was ______________________ (使她丢工作).
5. We packed all the books in the wooden boxes so that __________________ (它们不会被损坏).
6. We were told that ________________________ (火车将要离开) at five the next morning.
7. In the past he was often in debt, but in recent years, he ____________________________ (通过做生意谋生) with local traders.
8. Now that you have realized that your time is limited, you must ________________________ (努力学习以实现自己的目标).(have+宾语+宾补)
五、语法填空
Boxing Day, also known 1. _______ St. Stephen’s Day, is usually celebrated on the day after Christmas in the United Kingdom and other 2. _______ (country) with British roots. Although its origin (起源) is unclear, it is 3. _______ (general) believed that it comes from the ancient practice of churches opening
4. _______ (they) collection boxes for the poor on this day. So, charity is an important theme to this holiday. To celebrate a 5. _______ (tradition) Boxing Day, you should follow the steps.
First, volunteer for the church. Find out if your church 6. _______ (follow) the tradition of giving donations away to the poor on Boxing Day. If they need any help, then donate your time elsewhere by 7. _______ (find) organizers who need volunteers for programs that day. Contribute to improving the lives of others. Second, plan ahead. Since charity 8. _______ (need) all year round, use Boxing Day to plan your calendar for the upcoming year. Search online for future events 9. _______ you could be of help. Plan a budget so you can donate to your favorite charities on a regular 10. _______ (base).
六、阅读理解
When I was a child,I often saw my Grandma throwing bread that was no longer fresh to birds.Not surprisingly,this attracted few birds.Later on,we discovered bird food at the local store.Feeding garden birds in the UK has come a long way since then.Today,the birds can enjoy many kinds of food:from plant seeds to sunflower hearts and from cakes to meat balls.All this comes at a huge cost.Sometimes,I wonder if we might be feeding our garden birds better than our kids.But maybe it’s worth it.Our generosity is having an important effect on the behavior and even evolution of these birds.
Take the goldfinch for example.In the 1960s,this was a rare bird.Today,goldfinches can be seen in many gardens.Other new visitors include the spotted woodpecker,which has left its usual woodland for food on bird tables.Evolution is meant to progress slowly:over thousands of years.Yet during the past few decades,the beaks of many kinds of birds have become longer because birds with longer beaks can get more food,and then are more likely to live on.
Actually,the British habit of feeding garden birds goes back much further.During the sixth century,St Serf of Fife fed a robin in his garden;during the winter of 1890,workers in London were seen giving their lunches to songbirds.The real change took place in the 1980s,when a few farsighted businessmen realized that encouraging the British to be more generous to garden birds can help them make money.Therefore,various kinds of bird food and modern bird feeders were produced.As a result,the number of species using garden feeding stations increased very quickly,from about 10 to over 100.Then,in 2005,Springwatch came,which turned our love of garden birds into an entertainment show.
Is bird feeding completely good for birds?Not everyone thinks so.Studies by the Zoological Society of London have shown that by bringing together many birds,bird feeders may help the spread of disease.In Australia,some bird experts believe—probably wrongly—that bird feeding creates a “dependence culture”.
But we shouldn’t forget one major benefit of feeding garden birds—it connects millions of people to the natural world.This is especially important for people who seldom reach the wider countryside.As I write this,there comes some noise outside my window:several birds were singing and flying around in my garden.It’s a sight I could only imagine years ago,when feeding garden birds just meant throwing hard bread to them.
1.What does the author mean by saying the underlined part in paragraph 1?
A.Feeding garden birds is a huge waste of money.
B.We spend quite a lot of money on the food of garden birds.
C.We should care more for our kids rather than garden birds.
D.Feeding garden birds can bring more joy than feeding kids.
2.Which is the reason behind the fact that many birds’ beaks become longer?
A.These birds have given up traditional woodland.
B.Food for these birds becomes richer and better.
C.Longer beaks mean more chances of survival.
D.These birds grow faster than ever before.
3.What do some bird experts in Australia think of bird feeding?
A.It is completely good for birds.
B.It may help the spread of disease.
C.It connects more and more people to the natural world.
D.It may reduce birds’ ability to find food by themselves.
4.How does the author feel when he hears bird noise outside his window?
A.Annoyed. B.Pleased.
C.Surprised. D.Bored.
七、完形填空
In the year I was about twelve years old,my mother told us that we would not be 1 Christmas gifts for short of money.I felt sad and thought,“What would I say when the other kids asked what I’d 2 ?” Just when I started to accept that there would not be a Christmas gift that year,then three women 3 at our house with gifts for all of us.For me they brought a doll.I would no longer have to feel 4 when I returned to school.
Years later,when I stood in the kitchen of my new house,thinking how I wanted to make my 5 Christmas there special and memorable,I 6 remembered the women’s visit.I decided that I wanted to create that same feeling of 7 for as many children as I could possibly 8 .
So I 9 a plan and gathered forty people from my company to help.We gathered about 125 orphans (孤儿) at the Christmas party.For every child,we wrapped colorful packages filled with toys,clothes,and school supplies,each with a child’s name.We wanted all of them to know they were 10 .Before I called out their names and handed them their gifts,I 11 them that they couldn’t open their presents until every child had come forward.Finally,the 12 they had been waiting for came as I called out,“One,two,three.Open your presents!” As the children opened their packages,their faces beamed and their bright smiles 13 up the room.The 14 in the room was obvious,and it wasn’t just about toys.It was a feeling—the feeling I knew from the Christmas so long ago when the women came to visit.I wasn’t forgotten.Somebody thought of me.I 15 .
1.A.sending B.receiving C.making D.exchanging
2.A.got B.prepared C.found D.expected
3.A.broke in B.settled down C.showed off D.turned up
4.A.embarrassed B.puzzled C.frightened D.relieved
5.A.present B.first C.last D.past
6.A.hardly B.regularly C.immediately D.rarely
7.A.responsibility B.independence C.importance D.safety
8.A.know B.mention C.remember D.reach
9.A.kept up with B.caught up with C.came up with D.put up with
10.A.fine B.special C.helpful D.normal
11.A.reminded B.warned C.persuaded D.promised
12.A.chance B.gift C.moment D.reward
13.A.lit B.took C.burned D.cheered
14.A.warmth B.appreciation C.calmness D.joy
15.A.matter B.wonder C.doubt D.suppose
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Unit 3 Period 2
Grammar & Usage 分层练习
基础达标 01
能力提升 02
拓展培优 03
一 、根据提示写出正确的单词
1. When lion cubs(幼崽) are young, the mother stays with them while the father ____________ (搜寻)for food.
2. Many online shops will give customers a great discount(折扣) to ____________ (促销)their goods.
3. The rent of my ____________(公寓套房) is very high, for it is convenient for the shopping center and the railway station.
4. Most of his ____________ (收入)is spent on his house every month.
5. People should ____________(遵守) the traffic rules when they travel to a new place.
6. Everyone has to show their ____________(身份) cards when they buy a train ticket in China.
7. Our department usually begins a new week after reviewing the ____________(先前的) week’s work.
8. The teacher decided to give the task to the student who had a strong sense of ____________(责任).
9. According to the law of the country, players should be allowed to ____________ (赚取) money from advertising.
10. For many people, belongings are the most essential ____________(来源) of meaning.
【答案】
1. hunts 2. promote 3. apartment 4. income 5. observe
6. identity 7. previous 8. duty 9. earn 10. source
二、用方框内短语的适当形式填空
come true;on show;in honour of;pass down;fall on;put on;hand in
1.What do you think of Xiao Yang’s suggestion that we a play at the English evening?
2.The gallery owner Anthony Brunelli said of the 10 pieces about to go , six were already sold and the remaining four could fetch between$8,000—10,000.
3.After the country’s National Day holiday travel rush dazzled(使倾倒) many foreigners, Chinese young people are also preparing for Halloween, which Saturday.
4.I hope that through this learning, the excellence of traditional Chinese culture can be to us better.
5.His colleagues and former students have published his essays his thirty years’ service at the university.
6.All applications must be within the next two weeks, by the end of the month at the latest.
7.I believe in myself, and I’m sure I can make my dream .
【答案】
1.put on 2.on show 3.falls on 4.passed down 5.in
honour of 6.handed in 7.come true
三、单句语法填空。
1. Whenever we had trouble, he ________(come) to help us.
2. Eight policemen spent two years ________(comb) through the evidence.
3. ________ working together in unity with my friends, I can accomplish things that are impossible to finish alone.
4. ________(hunt) for the rare animal, they searched everywhere in the mountain.
5. I was about to say ________ you interrupted me, so I don't want to discuss this today.
6. The retired man donated most of his savings to the school damaged by the earthquake, ________(enable) the students to return to their classrooms.
7. This custom ________(pass) down since the 18th century.
8. Miss Zhang said she________ (visit) the Great Wall next summer.
9. I wasn't sure whether he (lend) me his book the next morning.
10. —Tom, you didn't come to the party last night.
—I ________(go), but I suddenly remembered I had homework to do.
【答案】
1. would come 2. combing 3. By/Through 4. To hunt 5. when 6. enabling
7. has been passed 8. would visit 9. would lend 10. was going to
四、按要求完成句子
1. Last week he ________________________ (答应过他会回来), but he hasn't arrived until now.
2. Tom ______________________________ (正要关窗户这时) his attention was caught by a bird.
3. I thought he ____________________ (不会参加晚会), but to my surprise, he came.
4. She didn't know that the accident was ______________________ (使她丢工作).
5. We packed all the books in the wooden boxes so that __________________ (它们不会被损坏).
6. We were told that ________________________ (火车将要离开) at five the next morning.
7. In the past he was often in debt, but in recent years, he ____________________________ (通过做生意谋生) with local traders.
8. Now that you have realized that your time is limited, you must ________________________ (努力学习以实现自己的目标).(have+宾语+宾补)
【答案】
1. promised that he would be back 2. was about to close/was on the point of closing the window when 3. wouldn't attend the evening party 4. to make her lose her job 5. they wouldn't get damaged 6. the train was leaving 7. has earned his/a living by/through doing business 8. work hard to have your goal achieved
五、语法填空
Boxing Day, also known 1. _______ St. Stephen’s Day, is usually celebrated on the day after Christmas in the United Kingdom and other 2. _______ (country) with British roots. Although its origin (起源) is unclear, it is 3. _______ (general) believed that it comes from the ancient practice of churches opening
4. _______ (they) collection boxes for the poor on this day. So, charity is an important theme to this holiday. To celebrate a 5. _______ (tradition) Boxing Day, you should follow the steps.
First, volunteer for the church. Find out if your church 6. _______ (follow) the tradition of giving donations away to the poor on Boxing Day. If they need any help, then donate your time elsewhere by 7. _______ (find) organizers who need volunteers for programs that day. Contribute to improving the lives of others. Second, plan ahead. Since charity 8. _______ (need) all year round, use Boxing Day to plan your calendar for the upcoming year. Search online for future events 9. _______ you could be of help. Plan a budget so you can donate to your favorite charities on a regular 10. _______ (base).
【答案】
本文是一篇说明文。文章主要讲述了Boxing Day的起源和庆祝活动。
1. 【解析】as。考查介词。known as作为……而闻名, 根据句意, 故填as。
2. 【解析】countries。考查名词。分析可知, country为可数名词, 被other修饰, 应用名词复数, other countries其他的国家, 故填countries。
3. 【解析】generally。考查副词。分析句子可知, 设空处修饰动词believed作状语, 应用副词形式, 故填generally。
4. 【解析】their。考查代词。分析句子可知, 设空处用来修饰名词collection boxes, 应用they的形容词性物主代词, 故填their。
5. 【解析】traditional。考查形容词。分析句子可知, 设空处用来修饰名词Boxing Day, 要用形容词形式, 故填traditional。
6. 【解析】follows。考查时态。根据整篇文章的时态及描述, 此处需用一般现在时, church是单数, 故用一般现在时的第三人称单数形式, 故填follows。
7. 【解析】finding。考查非谓语动词。分析可知, by是介词, 后面跟动名词形式, 故填finding。
8. 【解析】is needed。考查时态语态。根据句意及整篇文章的时态可知, 用一般现在时, charity和need是被动关系, 故用一般现在时的被动语态, 故填is needed。
9. 【解析】where。考查定语从句。分析句子可知, 本句为定语从句, 修饰先行词events, 先行词在从句中作地点状语, 故填where。
10. 【解析】basis。考查名词。分析可知, regular是形容词, 修饰名词, on a regular basis经常, 定期, 故填basis。
六、阅读理解
When I was a child,I often saw my Grandma throwing bread that was no longer fresh to birds.Not surprisingly,this attracted few birds.Later on,we discovered bird food at the local store.Feeding garden birds in the UK has come a long way since then.Today,the birds can enjoy many kinds of food:from plant seeds to sunflower hearts and from cakes to meat balls.All this comes at a huge cost.Sometimes,I wonder if we might be feeding our garden birds better than our kids.But maybe it’s worth it.Our generosity is having an important effect on the behavior and even evolution of these birds.
Take the goldfinch for example.In the 1960s,this was a rare bird.Today,goldfinches can be seen in many gardens.Other new visitors include the spotted woodpecker,which has left its usual woodland for food on bird tables.Evolution is meant to progress slowly:over thousands of years.Yet during the past few decades,the beaks of many kinds of birds have become longer because birds with longer beaks can get more food,and then are more likely to live on.
Actually,the British habit of feeding garden birds goes back much further.During the sixth century,St Serf of Fife fed a robin in his garden;during the winter of 1890,workers in London were seen giving their lunches to songbirds.The real change took place in the 1980s,when a few farsighted businessmen realized that encouraging the British to be more generous to garden birds can help them make money.Therefore,various kinds of bird food and modern bird feeders were produced.As a result,the number of species using garden feeding stations increased very quickly,from about 10 to over 100.Then,in 2005,Springwatch came,which turned our love of garden birds into an entertainment show.
Is bird feeding completely good for birds?Not everyone thinks so.Studies by the Zoological Society of London have shown that by bringing together many birds,bird feeders may help the spread of disease.In Australia,some bird experts believe—probably wrongly—that bird feeding creates a “dependence culture”.
But we shouldn’t forget one major benefit of feeding garden birds—it connects millions of people to the natural world.This is especially important for people who seldom reach the wider countryside.As I write this,there comes some noise outside my window:several birds were singing and flying around in my garden.It’s a sight I could only imagine years ago,when feeding garden birds just meant throwing hard bread to them.
1.What does the author mean by saying the underlined part in paragraph 1?
A.Feeding garden birds is a huge waste of money.
B.We spend quite a lot of money on the food of garden birds.
C.We should care more for our kids rather than garden birds.
D.Feeding garden birds can bring more joy than feeding kids.
2.Which is the reason behind the fact that many birds’ beaks become longer?
A.These birds have given up traditional woodland.
B.Food for these birds becomes richer and better.
C.Longer beaks mean more chances of survival.
D.These birds grow faster than ever before.
3.What do some bird experts in Australia think of bird feeding?
A.It is completely good for birds.
B.It may help the spread of disease.
C.It connects more and more people to the natural world.
D.It may reduce birds’ ability to find food by themselves.
4.How does the author feel when he hears bird noise outside his window?
A.Annoyed. B.Pleased.
C.Surprised. D.Bored.
【答案】1-4 BCDB
【解析】
【导语】本文是一篇说明文。文章主要介绍了人类的喂食行为对鸟类进化的影响、英国人喂养花园鸟类的习惯的历史以及人们对喂鸟行为的看法等。
1.B 词句猜测题。根据画线部分上文“Today,the birds can enjoy many kinds of food:from plant seeds to sunflower hearts and from cakes to meat balls.All this comes at a huge cost.”可知,作者认为人们在花园的鸟食上花费了太多的钱,即画线部分意思为“我们花了很多钱在花园的鸟食上”,故选B项。
2.C 细节理解题。根据第二段中的“Yet during the past few decades,the beaks of many kinds of birds have become longer because birds with longer beaks can get more food,and then are more likely to live on.”可知,许多鸟的喙变长了,这背后的原因是长喙意味着更多的生存机会,故选C项。
3.D 细节理解题。根据倒数第二段中的“In Australia,some bird experts believe—probably wrongly—that bird feeding creates a ‘dependence culture’.”可知,澳大利亚的一些鸟类专家认为喂鸟是错误的,因为喂鸟可能会降低鸟类自己寻找食物的能力,造成鸟类对人类的依赖,故选D项。
4.B 推理判断题。根据最后一段中的“As I write this,there comes some noise outside my window:several birds were singing and flying around in my garden.It’s a sight I could only imagine years ago,when feeding garden birds just meant throwing hard bread to them.”可推知,当作者听到窗外鸟鸣时,他感觉很高兴,故选B项。
七、完形填空
In the year I was about twelve years old,my mother told us that we would not be 1 Christmas gifts for short of money.I felt sad and thought,“What would I say when the other kids asked what I’d 2 ?” Just when I started to accept that there would not be a Christmas gift that year,then three women 3 at our house with gifts for all of us.For me they brought a doll.I would no longer have to feel 4 when I returned to school.
Years later,when I stood in the kitchen of my new house,thinking how I wanted to make my 5 Christmas there special and memorable,I 6 remembered the women’s visit.I decided that I wanted to create that same feeling of 7 for as many children as I could possibly 8 .
So I 9 a plan and gathered forty people from my company to help.We gathered about 125 orphans (孤儿) at the Christmas party.For every child,we wrapped colorful packages filled with toys,clothes,and school supplies,each with a child’s name.We wanted all of them to know they were 10 .Before I called out their names and handed them their gifts,I 11 them that they couldn’t open their presents until every child had come forward.Finally,the 12 they had been waiting for came as I called out,“One,two,three.Open your presents!” As the children opened their packages,their faces beamed and their bright smiles 13 up the room.The 14 in the room was obvious,and it wasn’t just about toys.It was a feeling—the feeling I knew from the Christmas so long ago when the women came to visit.I wasn’t forgotten.Somebody thought of me.I 15 .
1.A.sending B.receiving C.making D.exchanging
2.A.got B.prepared C.found D.expected
3.A.broke in B.settled down C.showed off D.turned up
4.A.embarrassed B.puzzled C.frightened D.relieved
5.A.present B.first C.last D.past
6.A.hardly B.regularly C.immediately D.rarely
7.A.responsibility B.independence C.importance D.safety
8.A.know B.mention C.remember D.reach
9.A.kept up with B.caught up with C.came up with D.put up with
10.A.fine B.special C.helpful D.normal
11.A.reminded B.warned C.persuaded D.promised
12.A.chance B.gift C.moment D.reward
13.A.lit B.took C.burned D.cheered
14.A.warmth B.appreciation C.calmness D.joy
15.A.matter B.wonder C.doubt D.suppose
【答案】1-5 BADAB 6-10 CCDCB 11-15 ACADA
【导语】本文是一篇记叙文。作者小时候收到了三位女士的圣诞礼物,长大后为孤儿院的孩子们送去了礼物,让孩子们知道自己是特别且重要的。
1.B send发送;receive接收;make制作;exchange交换。根据下文“Just when I started to accept that there would not be a Christmas gift that year”可知,作者开始接受今年不会有圣诞礼物这件事,所以此处母亲告诉作者不会收到圣诞礼物了,故选B项。
2.A get 获得;prepare准备;find发现;expect希望。根据下文“I would no longer have to feel when I returned to school.”可知,作者收到了礼物,回到学校时就不会感觉尴尬。由此推测,此处指的是其他孩子问作者得到了什么,故选A项。
3.D break in闯入;settle down定居;show off炫耀;turn up出现。根据下文“at our house with gifts for all of us”可知,三位女士出现在作者家里,并带来了礼物,故选D项。
4.A embarrassed尴尬的;puzzled困惑的;frightened恐惧的;relieved释然的。根据上文“For me they brought a doll.”可知,作者已经收到了洋娃娃作为圣诞礼物,所以回到学校后,当其他孩子问作者得到了什么的时候,作者就不会感到尴尬了,故选A项。
5.B present现在的;first第一个;last最后的;past过去的。根据上文“when I stood in the kitchen of my new house”可知,此处指的是作者在新家的第一个圣诞节,故选B项。
6.C hardly几乎不;regularly定期地;immediately立刻;rarely很少。根据下文“I decided that I wanted to create that same feeling of for as many children as I could possibly .”可知,作者决定为尽可能多的孩子创造同样重要的感觉。由此推测,此处指作者立刻想起了当时那些女士的来访,故选C项。
7.C responsibility责任;independence独立;importance重要;safety安全。根据语境可知,此处表示作者想要让尽可能多的孩子感觉到自己是重要的,感受到别人在想着他们,故选C项。
8.D know知道;mention提及;remember记住;reach达到。根据语境可知,此处表示作者想为尽可能多的孩子创造重要的感觉。as...as sb.could reach意为“某人力所能及”,故选D项。
9.C keep up with跟上;catch up with追上;come up with想出;put up with忍受。根据下文“a plan”可知,作者想出了一个计划,故选C项。
10.B fine好的;special特别的;helpful有帮助的;normal正常的。根据上文“each with a child’s name”可知,每份礼物上都有孩子的名字,因为作者想让他们知道他们是特别的,故选B项。
11.A remind提醒;warn警告;persuade说服;promise承诺。根据下文“One,two,three.Open your presents!”可知,作者提醒孩子们,要等所有孩子都拿到礼物后再一起打开礼物,故选A项。
12.C chance机会;gift礼物;moment时刻;reward奖励。根据下文“One,two,three.Open your presents!”可知,孩子们一起打开礼物的时刻到了,故选C项。
13.A light点亮;take带走;burn燃烧;cheer欢呼。根据下文“The in the room was obvious”可知,孩子们是非常快乐的,他们明亮的笑容照亮了房间。light up表示“点亮,照亮”,故选A项。
14.D warmth温暖;appreciation欣赏;calmness平静;joy欢乐。根据上文“As the children opened their packages,their faces beamed and their bright smiles up the room.”可知,孩子们打开礼物时是非常快乐的,房间里充满了欢乐,故选D项。
15.A matter重要,要紧;wonder想知道;doubt怀疑;suppose假设。根据上文“I wasn’t forgotten.Somebody thought of me.”可知,此处表示一种没有被遗忘、被别人想起的感觉,作者觉得自己是重要的,故选A项。
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