Unit 6 I’m watching TV.
Section A 2d-3c
一、英汉互译:单词/短语
1 .做作业
2 .用电脑
3 .喝茶
4 .洗衣服
5 .看报纸
6 .听唱片
7 .打扫房子
8 .打篮球
9 .on foot
10 .做晚饭
11 .打电话聊天
二、单项选择
12 .If I have much money, I'll buy a big for my parents.
A .home B .house
C .family D .room
13 .—Are you doing your homework
— . I'm cleaning my room.
A .Yes, I am B .No, I'm not C .Yes, I do D .No, I don't
14 .My brother is his homework. He often his homework at home.
A .does; doing B .doing; do
C .do; doing D .doing; does
15 .Don’t talk here. My grandparents .
A .sleep B .is sleeping C .are sleeping D .sleeping
16 .—Let’s go to the movies tomorrow!
— !
________
A .Yes, I can B .OK C .No, I can't D .Thanks
三、用所给单词的正确形式填空
17 .Look! Somebody (swim) in the river.
18 . (do) your homework by yourself.
19 .John and Mary (watch) TV now.
20 .They like (play) soccer on weekends.
21 .Kate often (help) her mother clean the house.
四、阅读短文,用所给词的适当形式填空,使短文意思完整、通顺。
My name is David. I 22 (study)in No. 3 Middle School now.
Here are two photos of my classmates and me. In the first photo, my classmates and I 23 (play) on the beach. Tim 24 (talk)with Cindy. They are 25 (real)happy. And two classmates 26 (drink)cola. In the second photo, three boys 27 (swim)in the sea. A girl 28 (read)
a book near the sea. There 29 ( be ) some kids near us. They
30 (look)excited.
_________
Please 31 (write)to me soon.
五、完成句子
32 .妈妈正在洗衣服。
My mother .
33 .你的叔叔正在喝茶吗?
your uncle tea
34 .让我们 8 点去钓鱼吧。
go fishing eight o'clock.
35 .你的朋友们正在干什么?
your friends
36 .你经常出去吃饭吗?
you often
37 .My mother is making__dinner in the kitchen.(对画线部分提问)
your mother in the kitchen
38 .Mary is talking on the phone.(改为否定句)
Mary on the phone.
39 .They are washing their clothes at home.(改为一般疑问句)
washing their clothes at home
40 .Is your grandfather reading a newspaper?(作否定回答)
, .
_______ ____ _____
41 .Jack does his homework every day.(改为否定句)
Jack his homework every day.
六、改写句子
42 .We want to go to the movies tonight.(改为一般疑问句)
you to go to the movies tonight
43 .David often wears a white T-shirt. (用 now 改为现在进行时)
David a white T-shirt now.
________
44 .They are talking about an exciting TV play. (改为否定句)
They about an exciting TV play.
七、阅读还原 7 选 5
Mr. Green is standing near the window. His wife, Mrs. Green, is sitting behind him,
45 She closes the book and asks her husband, "What are you looking at "
" 46 " Mr. Green answers, "He's under the tree near our house. He's standing by my
bike."
"Oh," Mrs. Green says, " 47 "
"He's cleaning the seat," says Mr. Green, " 48 "
Mrs. Green looks out of the window and then she says, "Ah, don't you know who he is He is
our son! 49 You must wear glasses!"
A .what is he doing now
B .He is going to school.
C .Now he is riding my bike.
D .I'm looking at the boy.
E .A girl is standing by my bike.
F .She is reading a book.
G .Now he is running.
八、完形填空
It is Saturday morning. Mr, and Mrs. Green are at home 50 their two children. __51 is their son, Jim. 52 is their daughter, Kate. They 53 have classes today. They are 54__chess in their room. They are 55 happy. Mr. Green is 56 a book in the sitting room. 57 is Mrs. Green 58 is in the kitchen. She is cooking lunch
59 the family. What a happy family!
50 .A .about B .in C .with D .at
51 .A .He B .Jim C .This D .One
52 .A .Other B .Another C .The other D .All the other
53 .A .doesn't B .mustn't C .can't D .don't
54 .A .making B .playing C .doing D .getting
55 .A .much B .very much C .very D .too
56 .A .looking B .seeing C .watching D .reading
57 .A .Where B .Which C .When D .Who
58 .A .He B .She C .Her D .Him
59 .A .at B .on C .for D .with
九、阅读单选
Dangers of the ‘V’
Do you often make the V sign(手势)when taking photos?You might want to do so less often
from now on.
Experts(专家)say that it is possible to use the V sign to copy(复制)someone's fingerprints(指
纹) .Someone could take your photo ,zoom in (放大) on your fingers ,and then use AI
technology(人工智能技术)to copy your prints.
Does that mean you should not make the V sign in photos anymore?Not really.The
fingerprints in your photos must be clear enough to copy.If the photo is taken from 1.5 meters or
less away ,it is possible to copy your prints.But if the photo is taken from over 3 meters away,
your prints won't be clear enough to copy.The photos we put online are usually not clear enough to
copy.But still ,you should be careful.
60 .According to Paragraph 2 ,why should we stop making the V sign in photos
A .Because it looks ugly. B .Because it is boring.
C .Because it is not cool anymore. D .Because someone might copy our
fingerprints.
61 .People can copy our fingerprints when we .
A .take photos from 4 meters away B .take unclear photos from 2 meters away C .take clear photos from 1 meter away D .take photos without showing our fingers
62 .From the last paragraph ,we can learn that .
A .we should not make the V sign in photos anymore
B .we should be careful when putting V- sign photos online
C .it is impossible to copy one's fingerprints
D .we should not put our photos online at allUnit 6 I’m watching TV.
Section A 2d-3c
一、英汉互译:单词/短语
1 .做作业
2 .用电脑
3 .喝茶
___________________
4 .洗衣服
5 .看报纸
6 .听唱片
7 .打扫房子
8 .打篮球
9 .on foot
___________________
10 .做晚饭
11 .打电话聊天
参考答案:
1 .do homework 2 .use the computer 3 .drink tea 4 .wash the clothes 5 .read a
newspaper 6 .listen to a CD 7 .clean the house 8 .play basketball 9 .步行 10 .make
dinner 11 .talk on the phone
【解析】 1 .“做作业”译为“do homework”。故填 do homework
2 .“用电脑”译为“use the computer”。故填 use the computer。
3 .“ 喝茶”译为“drink tea”。故填 drink tea。
4 .“洗衣服”译为“wash the clothes”。故填 wash the clothes。
5 .“看报纸”译为“read a newspaper”。故填 read a newspaper。
6 .“ 听唱片”译为“listen to a CD”。故填 listen to a CD。
7 .“打扫房子”译为“clean the house”。故填 clean the house。
8 .“打篮球”译为“play basketball”。故填 play basketball。
9 .“on foot”译为“步行” 。故填:步行。
10 .“做晚饭”译为“make dinner”。故填 make dinner。
11 .“打电话聊天”译为“talk on the phone”。故填 talk on the phone。
二、单项选择
12 .If I have much money, I'll buy a big for my parents.
A .home B .house
C .family D .room
13 .—Are you doing your homework
— . I'm cleaning my room.
A .Yes, I am B .No, I'm not C .Yes, I do D .No, I don't
14 .My brother is his homework. He often his homework at home.
A .does; doing B .doing; do
C .do; doing D .doing; does
15 .Don’t talk here. My grandparents .
A .sleep B .is sleeping C .are sleeping D .sleeping
16 .—Let’s go to the movies tomorrow!
— !
________
A .Yes, I can B .OK C .No, I can't D .Thanks
12 .B
【详解】句意:如果我有许多钱,我要为我父母买一个大房子。 A. home 家; B. house 房
子;
C. family 家庭; D. room 房间;根据句意故选 B
13 .B
【详解】句意: ——你在做作业吗? ——不,我没有。我在打扫房间。
考查一般疑问句的否定回答。根据后句“I'm cleaning my room.”可知, 空处应是否定回答, 故 排除 A 、C 项;问句是现在进行时,答语主语是“I”,否定回答应用 am not ,故排除 D 项。
故选 B。
14 .D
【详解】句意:我的弟弟正在做他的家庭作业。他经常在家做作业。
考查现在进行时和一般现在时。前一句是现在进行时用 be doing sth.,后一句是一般现在时,
主语是单数第三人称谓语动词加 es 。故选 D。
15 .C
【详解】句意:不要说话在这里。我的祖父母正在睡觉。
考查动词时态。根据“Don’t talk here”可知, 祖父母正在睡觉所以提醒不要在这说话, 用现在
进行时表示正在进行的动作:主语+be doing sth,主语是复数, be 动词用 are 。故选 C。
16 .B
【详解】句意: ——我们明天去看电影吧! ——好!
考查情景交际。 Yes, I can 是的,我会; OK 好,表示同意; No, I can't 不,我不会; Thanks
谢谢。根据上句句型可知,是提建议,故答语应是表示同意或不同意。故选 B。
三、用所给单词的正确形式填空
17 .Look! Somebody (swim) in the river.
18 . (do) your homework by yourself.
19 .John and Mary (watch) TV now.
20 .They like (play) soccer on weekends.
21 .Kate often (help) her mother clean the house.
17 .is swimming
【详解】句意:看!有人正在河里游泳。 swim 游泳,根据“Look!”可知,此处用现在进行时 be doing,主语 somebody 是第三人称单数,谓语用第三人称单数形式,故填 is swimming。
18 .Do
【详解】句意:自己做你的作业。根据语境可知是肯定祈使句, 动词原形开头。短语 do your
homework“做作业” 。注意首字母大写。故填 Do。
19 .are watching
【详解】句意:约翰和玛丽正在看电视。根据句中的时间状语“now”可知,句子是现在进行 时,构成形式为:be doing;主语“John and Mary”是复数形式, be 用 are ;watch 的现在分词
是 watching。故填 are watching。
20 .playing
【详解】句意:他们喜欢在周末踢足球。喜欢干某事:like doing sth. ;play 的动名词形式为
playing。故填 playing。
21 .helps
【详解】句意:Kate 经常帮她妈妈打扫房子。根据句子的时间状语“often”可知,句子是一般
现在时;主语“Kate”是第三人称单数形式,故行为动词后要加 s 。故填 helps。
四、阅读短文,用所给词的适当形式填空,使短文意思完整、通顺。
My name is David. I 22 (study)in No. 3 Middle School now.
Here are two photos of my classmates and me. In the first photo, my classmates and I 23 (play)on the beach. Tim 24 (talk)with Cindy. They are 25 (real) happy. And two classmates 26 (drink )cola. In the second photo, three boys 27 (swim)in the sea. A girl 28 (read)a book near the sea. There 29 (be)some
kids near us. They 30 (look)excited.
Please 31 (write)to me soon.
22 .am studying 23 .are playing 24 .is talking 25 .really 26 .are drinking 27 .are
swimming 28 .is reading 29 .are 30 .look 31 .write
【分析】本文主要讲述了 David 的两张和同学一起的照片,照片上的同学们正在做什么。
22 .句意:我现在正在第三中学读书。
现在 now 说明是现在进行时,结构:be 动词+动词 ing 形式;主语 I 第一人称单数,所以 be
动词用 am 。故答案填 am studying。
23 .句意:在第一张照片里,我和我的同学在沙滩上玩耍。
讲述照片里的信息,表示正在的动作,用现在进行时,结构: be 动词+动词 ing 形式;主语
我和我的朋友是复数,所以 be 动词用 are 。故答案填 are playing。
24 .句意: Tim 正和 Cindy 聊天。
讲述照片里的信息, 表示正在的动作, 用现在进行时, 结构:be 动词+动词 ing 形式;主语 Tim
是第三人称单数,所以 be 动词用 is。故答案填 is talking。
25 .句意:他们真的很开心。
形容词 real 真实的, 根据句意表示真的, 加后缀 ly 表示真的, 作副词修饰形容词 happy。故
答案填 really。
26 .句意:两个同学正在喝可乐。
讲述照片里的信息, 表示正在的动作, 用现在进行时, 结构:be 动词+动词 ing 形式;主语 two
classmates 是复数,所以 be 动词用 are 。故答案填 are drinking。
27 .句意:在第 2 张照片里, 3 个男孩正在河里游泳。
讲述照片里的信息, 表示正在的动作, 用现在进行时, 结构:be 动词+动词 ing 形式;主语 three
boys 是复数,所以 be 动词用 are 。故答案填 are swimming。
28 .句意: 一个女孩正在河边读书。
讲述照片里的信息,表示正在的动作,用现在进行时,结构: be 动词+动词 ing 形式;主语
一个女孩是第三人称单数,所以 be 动词用 is。故答案填 is reading。
29 .句意:我们旁边有些孩子。
There be 句型后跟的名词some kids 是可数名词复数形式,所以 be 动词用 are 。故答案填
are 。
30 .句意:他们看起来很开心。
表示一种状态,感官动词 look 没有 ing 形式,所以用一般现在时,主语 they 是复数,所以
动词用原形。故答案填 look。
31 .句意:请快点给我回信。
祈使句,动词原形放句首。故答案填 write。
32 . is washing clothes
【详解】洗衣服:wash clothes;根据句意可知,句子是现在进行时,构成形式为 be doing;
主语“My mother”是第三人称单数形式, be 用 is;wash 的现在分词是 washing。故填 is;
washing;clothes。
33 . Is drinking
【详解】根据汉语提示“正在喝茶”可知,句中时态为现在进行时,结构为 be doing;句中主 语“your uncle”是第三人称单数形式, 所以 be 动词使用 is;动词 drink 意为“ 喝” ,现在分词为
drinking。故填 Is;drinking。
34 . Let's at
【详解】本句是祈使句,以动词原形开头; let us = let's 意为“让我们” ;在某个具体时间点
介词用 at ;故填 Let's;at。
35 . What are doing
【详解】什么: what,特殊疑问词,置于句首,首字母大写;干: do,动词,现在分词是 doing;根据句意可知,句子是现在进行时,构成形式为: be doing;主语“your friends”是复
数形式, be 用 are ,变疑问句提前。故填 What;are ;doing。
36 . Do eat out
【详解】 eat out 意为“ 出去吃饭” ;结合中文提示和 often 可知,本句是一般现在时、 一般疑
问句;主语 you,助动词用 do,谓语动词用原形;故填 Do;eat ;out。
五、完成句子
32 .妈妈正在洗衣服。
My mother .
33 .你的叔叔正在喝茶吗?
your uncle tea
34 .让我们 8 点去钓鱼吧。
go fishing eight o'clock.
35 .你的朋友们正在干什么?
your friends
36 .你经常出去吃饭吗?
you often
37 .My mother is making__dinner in the kitchen.(对画线部分提问)
your mother in the kitchen
38 .Mary is talking on the phone.(改为否定句)
Mary on the phone.
39 .They are washing their clothes at home.(改为一般疑问句)
washing their clothes at home
40 .Is your grandfather reading a newspaper?(作否定回答)
, .
_______ ____ _____
41 .Jack does his homework every day.(改为否定句)
Jack his homework every day.
37 . What is doing 38 . isn't talking 39 . Are they 40 . No he isn
't 41 . doesn't do
【解析】37 .句意:我的妈妈正在厨房做晚餐。
对“making dinner”进行提问,即你的妈妈正在做什么?用现在进行时。故填(1). What (2).
is (3). doing。
38 .句意:玛丽正在打电话。
改为否定,即玛丽不在打电话。故填(1). isn't (2). talking。
39 .句意:他们正在家里洗衣服。
改为一般疑问句,直接将 be 动词提到主语的前面,故填(1). Are (2). they。
40 .句意:你的爸爸正在读报纸吗?
否定回答,为“不,他没有。 ”用 he 代替爸爸,故填(1). No (2). he (3). isn't。
41 .句意:杰克每天做作业。
改为否定,即不做作业,动词否定形式借助助动词 do not来实现,主语 Jack 为第三人称单
数,助动词后用动词原形。故填(1). doesn't (2). do。
六、改写句子
42 .We want to go to the movies tonight.(改为一般疑问句)
you to go to the movies tonight
43 .David often wears a white T-shirt. (用 now 改为现在进行时)
David a white T-shirt now.
________
44 .They are talking about an exciting TV play. (改为否定句)
They about an exciting TV play.
42 . Do want
【详解】句意:我们今晚想去看电影。观察句子,谓语动词是实义动词 want ,主语是第一 人称 we ,改为一般疑问句要借助 Do 放句首,谓语动词用原形,并且把第一人称改为第二
人称,故填 Do ,want。
43 .is wearing
【详解】句意:David 经常穿一件白色 T 恤。原句为一般现在时,谓语动词“wears”为动词三
单形式,其动词原形为wear“穿”。根据题干要求需改为现在进行时, 其构成是:主语+be+doing,
主语“David”是第三人称单数,所以助动词用 is ,wear 的现在分词是 wearing,故填 is
wearing。
44 .aren’t talking
【详解】句意:他们正在谈论一部令人兴奋的电视剧。本句为含有 be 动词“are”的陈述句,
变否定句时,直接在“are”后面加“not”,故填 aren’t talking。
七、阅读还原 7 选 5
Mr. Green is standing near the window. His wife, Mrs. Green, is sitting behind him,
45 She closes the book and asks her husband, "What are you looking at "
" 46 " Mr. Green answers, "He's under the tree near our house. He's standing by my
bike."
"Oh," Mrs. Green says, " 47 "
"He's cleaning the seat," says Mr. Green, " 48 "
Mrs. Green looks out of the window and then she says, "Ah, don't you know who he is He is
our son! 49 You must wear glasses!"
A .what is he doing now
B .He is going to school.
C .Now he is riding my bike.
D .I'm looking at the boy.
E .A girl is standing by my bike.
F .She is reading a book.
G .Now he is running.
45 .F 46 .D 47 .A 48 .C 49 .B
【分析】本文讲述了格林先生往窗外看, 看见一个男孩正在骑他的自行车。格林太太告诉他
那个男孩是他们的儿子,要去上学,并且告诉格林先生必须戴眼镜。
45.根据“She closes the book and asks her husband, ”可知, 她把书合上了, 因此表示正在看书,
F 项“她正在看书。 ”符合语境,故选 F。
46.根据“She closes the book and asks her husband, "What are you looking at "”可知, 此处他回
答正在做的事, D 项“我正在看那个男孩。 ”符合语境,故选 D。
47.根据“"He's cleaning the seat," says Mr. Green, ”可知, 此处询问他正在做什么。A 项“他现
在正在做什么? ”符合语境,故选 A。
48 .根据“"He's cleaning the seat," says Mr. Green, ”可知, 此处表示他正在做的事。 C 项“现在
他正在骑我的自行车。 ”符合语境,故选 C。
49.根据“"He's cleaning the seat," says Mr. Green, "…"”可知, 可知他骑自行车要去做某事, B
项“他要去上学。 ”符合语境,故选 B。
八、完形填空
It is Saturday morning. Mr, and Mrs. Green are at home 50 their two children. 51 is their son, Jim. 52 is their daughter, Kate. They 53 have classes today. They are 54 chess in their room. They are 55 happy. Mr. Green is 56 a book in the sitting room. 57 is Mrs. Green 58 is in the kitchen. She is
cooking lunch 59 the family. What a happy family!
50 .A .About B .in C .with D .at
51 .A .He B .Jim C .This D .One
52 .A .Other B .Another C .The other D .All the other
53 .A .doesn't B .mustn't C .can't D .don't
54 .A .making B .playing C .doing D .getting
55 .A .much B .very much C .very D .too
56 .A .looking B .seeing C .watching D .reading
57 .A .Where B .Which C .When D .Who
58 .A .He B .She C .Her D .Him
59 .A .at B .on C .for D .with
50 .C 51 .D 52 .C 53 .D 54 .B 55 .C 56 .D 57 .A 58 .B 59 .C
【分析】本文是一篇记叙文,主要讲述了周六上午,格林一家人分别在做什么。
50 .句意:星期六上午,格林先生、格林夫人和他们的两个孩子在家里。
about 意为“关于” ;in 意为“在 · ……里面” ;with 意为“和……一起” ;at 意为“在……地点,
在…… 时刻” 。故选 C。
51 .句意: 一个是他们的儿子 Jim,另一个是他们的女儿 Kate。
He 他; Jim 人名; This 这; One 一个。由下一句“ is their daughter ,Kate.”可知,此处
应该使用固定搭配 one…the other… 。故选 D。
52 .句意: 一个是他们的儿子 Jim,另一个是他们的女儿 Kate。
Other 其他的;Another 再 The other 两个中的另一个;All the other 所有其他的。由“ is their son, Jim. is their daughter ,Kate.”可知,此处应该是 one…the other… 的固定搭配。
故选 C。
53 .句意:他们今天没有课。
doesn't 助动词;mustn't 禁止;can't 不能;don't 助动词。联系上文“It is Saturday morning.”可
知“今天他们没有课” ,主语 they 复数,故用助动词 don't。故选 D。
54 .句意:他们正在房间里下棋。
making 使; playing 玩; doing 做; getting 得到。play chess 意为“下棋” ,为固定搭配。故选
B。
55 .句意:他们很开心。
much 作副词修饰动词时,常和 too 一起连用,并且常放在句末; very much 意为“非常,
很” ,一般修饰动词,常用在句末;very 作副词时,可以用来修饰形容词。 too 太…… 。故选
C。
56 .句意:格林先生正在客厅里看书。
looking 看; seeing 看; watching 看; reading 看。看书常用动词 read。故选 D。
57 .句意:格林太太在哪里呢?
Where 意为“ 哪里” ,常用来询问地点; Which 意为“ 哪一个” ;When 意为“什么时候” ,常用 来询问时间;Who 意为“谁” ,常用来询问人是谁。由下一句“ is in the kitchen.”可知 A
选项符合题意。故选 A。
58 .句意:她在厨房。
He 他, 主格;She 她, 主格;Her 她的, 形容词性物主代词;Him 他, 宾格。由前一句“ is
Mrs. Green ”可知此处应该用 she。故选 B。
59 .句意:她正在为全家做午饭。
at 在;on 在 ……上;for 为了;with 和。for 作介词,意为“为了” ,根据句意为家人做午餐。
故选 C。
【点睛】完型填空的做题方法是:第一,通读全文,掌握大概意思;第二,联系上下文,理 解空格单词的意思和词性;第三,选项之间比较,选择最佳选项。如第 4 题,要通过联系上 文第一句话周六上文, 可知是今天不要上课。如第 8 题, 联系后文, 她正在厨房, 可知是询
问她在哪里。
九、阅读单选
Dangers of the ‘V’
Do you often make the V sign(手势)when taking photos?You might want to do so less often
from now on.
Experts(专家)say that it is possible to use the V sign to copy(复制)someone's fingerprints(指
纹) .Someone could take your photo ,zoom in (放大) on your fingers ,and then use AI
technology(人工智能技术)to copy your prints.
Does that mean you should not make the V sign in photos anymore?Not really.The
fingerprints in your photos must be clear enough to copy.If the photo is taken from 1.5 meters or
less away ,it is possible to copy your prints.But if the photo is taken from over 3 meters away,
your prints won't be clear enough to copy.The photos we put online are usually not clear enough to
copy.But still ,you should be careful.
60 .According to Paragraph 2 ,why should we stop making the V sign in photos
A .Because it looks ugly. B .Because it is boring.
C .Because it is not cool anymore. D .Because someone might copy our
fingerprints.
61 .People can copy our fingerprints when we .
A .take photos from 4 meters away B .take unclear photos from 2 meters away C .take clear photos from 1 meter away D .take photos without showing our fingers
62 .From the last paragraph ,we can learn that .
A .we should not make the V sign in photos anymore
B .we should be careful when putting V- sign photos online
C .it is impossible to copy one's fingerprints
D .we should not put our photos online at all
60 .D 61 .C 62 .B
【分析】本文主要告诉我们,我们平时在网上放的手指比 V 的照片有时是不安全的。因为
有人可能会复制你的指纹。
60 .细节理解题。由文章内容“it is possible to use the V sign to copy(复制)someone's
fingerprints(指纹)”可知,有人会复制你的指纹,故选 D。
61.推理判断题。由文章内容“If the photo is taken from 1.5 meters or less away,it is possible to
copy your prints. ”可知,少于 1.5 米,即可复制,故选 C。
62.细节理解题。A. we should not make the V sign in photos anymore 我们不应该再让 V 出现 在照片里了。由文章内容“Does that mean you should not make the V sign in photos anymore? Not really. ”可知, 也不是不能把比 V 的照片放到网上, 这句话错误。 B. we should be careful when putting V-sign photos online 我们在把比 V 的照片放到网上时要小心。由文章内容“But still,you should be careful.”可知,放照片时要小心, 这句话正确。C. it is impossible to copy one's fingerprints 复制指纹是不可能的。由文章内容“it is possible to copy your prints.”可知, 复制指 纹是可能的,故 C 错误。 D. we should not put our photos online at all 我们根本不应该把照片
放到网上。由文章内容“But still ,you should be careful.”我们应该小心。而不是根本不放。
故 D 错误。故选 B。