专题06 特殊疑问句【精讲精练】-2024-2025学年七年级英语上学期期末考点大串讲（人教版2024）

2024-2025学年七年级上期末考点大串讲（人教版） 专题06 特殊疑问句的用法 语法精讲 特殊疑问句 1．概述 以特殊疑问词开头的以寻求信息为目的的疑问句为特殊疑问句，读时一般用降调。 2．结构及答语 特殊疑问句由“特殊疑问词十一般疑问句？”构成，不用yes或no作答，而应根据具体情况作答。 【妙指津】 特殊疑问词在句中作主语或修饰主语时，谓语动词放在主语之后。 Who has a cap？谁有一顶帽子？ 3．常见特殊疑问词（组）的含义和用法 特殊疑 问词（组） 含义及用法 what “什么”，提问事物 who “谁”，提问人的身份 when “什么时候”，提问时间 where “在哪里”，提问地点 how “怎样，如何”，提问身体状况或动作的方式、程度 how many “多少”，询问可数名词的数量 how much “多少（钱）”，提问不可数名词的量或者价格 how old “（年龄）多大”，提问年龄 why “为什么”，提问原因 -What＇s your name？你叫什么名字？ -Bob.鲍勃。 -Who is from Canada？谁来自加拿大？ -Lily.莉莉。 -When is her birthday？ 她的生日是什么时候？ -How do you go to school？ 你怎么去上学？-By bus.乘公共汽车。 How many students are there in your school?你学校里有多少学生？ How much is the ticket to Beijing?去北京的车票多少钱？ How old is your grandmother?你的祖母多大年龄了？ -Why do you like history？你为什么喜欢历史？ -Because it＇s interesting.因为它有趣。 基础训练 原创精品资源学科网独家享有版权，侵权必究！10 学科网（北京）股份有限公司 学科网（北京）股份有限公司 1．—________ does your father do in his free time? —He often reads books. A．What B．When C．Where D．How 2．—________ is your best friend? —Li Feng. A．What B．Who C．Where D．How 3．—________ do they like to do? —They like to play chess. A．What B．How C．Where D．When 4．—________ can you smell with? —My nose. A．What B．How C．Where D．Who 5．—________ my trousers? I can’t find them. —Oh, ________ on the bed. A．Whose is; it’s B．Where’s; it’s C．Where are; they’re D．Where’s; they’re 6．—________ do you have classes? —In the classroom building. A．What B．Where C．How D．When 7．—________ is the rice with fish? —It’s 11 yuan. A．How many B．How much C．How old D．How long 8．—________ is the gift shop? —It’s over there. A．What B．Where C．How D．Who 9．—________ bananas do we need? —Three. A．How much B．How many C．How long D．How often 10．—_________ is your English teacher? —About 40, I think. A．How many B．How much C．How old D．How 11．—________ is your favourite subject? — My favourite subject is English. A．What B．Why C．How D．Who 12．—________ do you usually have lunch? —At about 12 o’clock. A．What colour B．What time C．How about D．How old 13．—________ do you usually go home after school? —At around 4:30. A．Where B．What C．Why D．When 14．—________ your school ________, Tom? —It’s big and clean. A．What’s; like B．How’s; like C．What does; like D．How does; like 15．—________ do you ________ the house? —It’s big and nice. A．What; like B．How; think of C．What; think D．How; like 16．—I like sports. And I run every morning. ________ can I join? —I think you can join the running club. A．What class B．How many C．What club D．What sport 17．—_________ class are you in? —I’m in Class 3. A．What B．Where C．How D．Who 18．—________ do you usually go to school? —By bike. A．How B．What C．Where D．When 19．—________do you like maths? —Because it’s useful. A．Why B．What C．When D．How 20．—________ do you have English class? —On Monday and Friday. A．When B．What C．How D．Where 21．—________ are you? —I’m fine, thank you. A．How B．What C．Where D．Who 22．—________ is your father? —He is a doctor. A．Who B．What C．Where D．How 提升训练 1．（22-23七年级上·辽宁沈阳·期末）—________ did you stop playing basketball? — Because I was very tired. A．How B．When C．Where D．Why 2．（23-24七年级上·安徽六安·期末）—________? —She is my friend, Jane. A． Who is the girl B．What’s your name C．Where is the girl from D．Why do you like the girl 3．（23-24七年级下·北京通州·期末）—______ is your favourite teacher? —Mrs. Wang. She is our English teacher and she is kind to us. A．How old B．Who C．Where D．When 4．（24-25七年级上·江苏连云港·期末）—________ will you stay in Beijing? —For about one week. A．How much B．How often C．How long D．How many 5．（23-24七年级下·北京朝阳·期末）—________ is that skirt? —It’s 150 yuan. A．How many B．How much C．How old D．How long 6．（23-24七年级下·北京朝阳·期末）—Excuse me. ________ is the post office? —It’s opposite the bank, just over there. A．What B．Where C．Why D．Who 7．（22-23七年级下·甘肃陇南·期末）—_________ are these socks?    —It’s seven dollars. A．How much B．How many C．How old D．How about 8．（22-23七年级下·陕西西安·期末）—________ is it from your home to your school? —It is about 10 minutes’ ride. A．How long B．How far C．How soon D．How often 9．（22-23七年级下·四川成都·期末）—________ do you want to join? —I want to join the English club. A．What time B．How C．What club 10．（22-23七年级下·河北石家庄·期末）—________ is the post office? —Don’t worry. Let’s find it on the map first. A．When B．What C．How D．Where 11．（22-23七年级下·重庆渝中·期末）—________ is it from your school to your home? —It’s about five kilometers. A．How far B．How much C．How many D．How soon 12．（19-20七年级上·湖北·期末）—________ do you like Miss Sun? —Because her classes are very interesting. A．What B．Who C．How D．Why 13．（23-24七年级上·湖北十堰·期末）—________ is the art festival? —I think it’s in March, but I’m not sure. A．What B．Where C．When D．How 14．（23-24七年级上·湖北襄阳·期末）—________ are those in the box? —They are white sweaters. A．How much B．What color C．What D．Where 15．（23-24七年级上·江西吉安·期末）—______ bread do you want? —I need three bags of bread. A．How many B．How much C．How old D．How long 16．（23-24七年级上·湖北·期末）—________ is the letter from? —It’s from England. A．Who B．Where C．What D．When 17．（23-24七年级上·河北邯郸·期末）—_______ are you looking for? Everyone is here. —I don’t think so. Where’s David? A．When B．Who C．What D．Where 18．（22-23七年级上·江西吉安·期末）— ________ is Betty’s small sister? — She’s only one month old. A．When B．How old C．What number D．Who 19．（23-24七年级上·湖北武汉·期末）— ________? —It is Friday. It’s my big day. A．What day is it today B．What’s the date today C．How’s your day D．What time is it 20．（23-24七年级上·河北石家庄·期末）— ________ people are there in your family? — There are five. A．How many B．How much C．What color D．How old $$2024-2025学年七年级上期末考点大串讲（人教版） 专题06 特殊疑问句的用法 语法精讲 特殊疑问句 1．概述 以特殊疑问词开头的以寻求信息为目的的疑问句为特殊疑问句，读时一般用降调。 2．结构及答语 特殊疑问句由“特殊疑问词十一般疑问句？”构成，不用yes或no作答，而应根据具体情况作答。 【妙指津】 特殊疑问词在句中作主语或修饰主语时，谓语动词放在主语之后。 Who has a cap？谁有一顶帽子？ 3．常见特殊疑问词（组）的含义和用法 特殊疑 问词（组） 含义及用法 what “什么”，提问事物 who “谁”，提问人的身份 when “什么时候”，提问时间 where “在哪里”，提问地点 how “怎样，如何”，提问身体状况或动作的方式、程度 how many “多少”，询问可数名词的数量 how much “多少（钱）”，提问不可数名词的量或者价格 how old “（年龄）多大”，提问年龄 why “为什么”，提问原因 -What＇s your name？你叫什么名字？ -Bob.鲍勃。 -Who is from Canada？谁来自加拿大？ -Lily.莉莉。 -When is her birthday？ 她的生日是什么时候？ -How do you go to school？ 你怎么去上学？-By bus.乘公共汽车。 How many students are there in your school?你学校里有多少学生？ How much is the ticket to Beijing?去北京的车票多少钱？ How old is your grandmother?你的祖母多大年龄了？ -Why do you like history？你为什么喜欢历史？ -Because it＇s interesting.因为它有趣。 基础训练 原创精品资源学科网独家享有版权，侵权必究！10 学科网（北京）股份有限公司 学科网（北京）股份有限公司 1．—________ does your father do in his free time? —He often reads books. A．What B．When C．Where D．How 【答案】A 【详解】句意：——你父亲在空闲时间做什么？——他经常读书。 考查特殊疑问词。What什么；When什么时间；Where哪里；How怎么。根据“He often reads books.”可知是问干什么，用What提问，故选A。 2．—________ is your best friend? —Li Feng. A．What B．Who C．Where D．How 【答案】B 【详解】句意：——你最好的朋友是谁？——李峰。 考查特殊疑问句。What什么，通常对事物、职业等进行提问；Who谁，对人进行提问；Where在哪里，对地点进行提问；How怎样，对方式、程度等进行提问。根据答语“Li Feng”（指人）可知，问句是在问谁是最好的朋友，应用Who提问。故选B。 3．—________ do they like to do? —They like to play chess. A．What B．How C．Where D．When 【答案】A 【详解】句意：——他们喜欢做什么？——他们喜欢下象棋。 考查特殊疑问句。What什么；How怎样：Where哪里；When什么时候。根据回答“They like to play chess.”可知此处提问做什么，应用“What”。故选A。 4．—________ can you smell with? —My nose. A．What B．How C．Where D．Who 【答案】A 【详解】句意：——你能用什么来闻？——我的鼻子。 考查特殊疑问句。What什么；How如何；Where哪里；Who谁。根据“…can you smell with?”以及“My nose.”可知，此处说的是可以用什么闻，因此此处用What进行提问。故选A。 5．—________ my trousers? I can’t find them. —Oh, ________ on the bed. A．Whose is; it’s B．Where’s; it’s C．Where are; they’re D．Where’s; they’re 【答案】C 【详解】句意：——我的裤子在哪里？我找不到它们了。——哦，它们在床上。 考查特殊疑问句和代词用法。Whose“谁的”；is“是”，主语为第三人称单数；are“是”，主语为第二人称或第一、三人称复数；it’s“它是”，it is的缩写；Where“在哪里”；they’re“它们是”，they are的缩写。根据“…my trousers? I can’t find them.”可知，此处指“我”找不到裤子了，应询问“裤子在哪里”，应用特殊疑问词where，trousers为复数，be动词应用are；根据“…on the bed.”可知，此处指裤子在床上，应用代词they“它们”指代“my trousers”，they作主语，be动词应用are。故选C。 6．—________ do you have classes? —In the classroom building. A．What B．Where C．How D．When 【答案】B 【详解】句意：——你在哪里上课？ ——在教学楼里。 考查特殊疑问词。What什么；Where哪里；How如何；When什么时候。由“In the classroom building”可知，这是地点。故选B。 7．—________ is the rice with fish? —It’s 11 yuan. A．How many B．How much C．How old D．How long 【答案】B 【详解】句意：——鱼和米饭多少钱？——11元。 考查特殊疑问句。How many多少；How much多少钱；How old多大；How long多久。根据“It’s 11 yuan.”可知，问句是问价格，用how much提问。故选B。 8．—________ is the gift shop? —It’s over there. A．What B．Where C．How D．Who 【答案】B 【详解】句意：——礼品店在哪里？——就在那边。 考查疑问词辨析。what什么；where在哪里；how怎样；who谁。根据“It’s over there.”可知，空处是对地点进行提问，故选B。 9．—________ bananas do we need? —Three. A．How much B．How many C．How long D．How often 【答案】B 【详解】句意：——我们需要多少个香蕉？——三个。 考查特殊疑问句。How much多少，对不可数名词提问；How many多少，对可数名词提问；How long多长时间，对一段时间提问；How often多久一次，对频率提问。根据“bananas”和“Three”可知，本题是对可数名词提问。故选B。 10．—_________ is your English teacher? —About 40, I think. A．How many B．How much C．How old D．How 【答案】C 【详解】句意：——你的英语老师年龄多大？——我认为大约40岁。 考查疑问词。How many多少，后用可数名词复数；How much多少，后用不可数名词；How old多大，提问年龄；How怎样。根据“About 40, I think.”可知，这里是问年龄。故选C。 11．—________ is your favourite subject? — My favourite subject is English. A．What B．Why C．How D．Who 【答案】A 【详解】句意：——你最喜欢的科目是什么？——我最喜欢的科目是英语。 考查特殊疑问句。What什么；Why为什么；How如何；Who谁。根据答语“My favourite subject is English.”可知，对喜欢什么科目提问，故选A。 12．—________ do you usually have lunch? —At about 12 o’clock. A．What colour B．What time C．How about D．How old 【答案】B 【详解】句意：——你通常什么时候吃午饭？——大约12点钟。 考查特殊疑问句。What colour什么颜色；What time什么时间；How about……怎么样；How old多少岁。根据回答“At about 12 o’clock.”可知，具体的时间点，用what time提问。故选B。 13．—________ do you usually go home after school? —At around 4:30. A．Where B．What C．Why D．When 【答案】D 【详解】句意：——你通常放学后什么时候回家？——大约在4:30。 考查特殊疑问句。Where哪里；What什么；Why为什么；When什么时候。根据“At around 4:30.”可知，此句是询问时间，故选D。 14．—________ your school ________, Tom? —It’s big and clean. A．What’s; like B．How’s; like C．What does; like D．How does; like 【答案】A 【详解】句意：——汤姆，你的学校怎么样？——它又大又干净。 考查特殊疑问句。根据答语“It’s big and clean.”可知，此处询问事物的特征，“What’s...like?”或“What does...look like”表示“……怎么样？”，固定句式。故选A。 15．—________ do you ________ the house? —It’s big and nice. A．What; like B．How; think of C．What; think D．How; like 【答案】D 【详解】句意：——你觉得这房子怎么样？——它又大又漂亮。 考查特殊疑问句。询问某人对某事物的看法，其常用句型为what do/does sb. think of...或how do/does sb. like...，因此第一空应是how，第二空是like。故选D。 16．—I like sports. And I run every morning. ________ can I join? —I think you can join the running club. A．What class B．How many C．What club D．What sport 【答案】C 【详解】句意：——我喜欢运动。我每天早上都跑步。——我可以加入什么？——我觉得你可以加入跑步俱乐部。 考查特殊疑问句和名词辨析。What class什么课程；How many多少；What club什么俱乐部；What sport什么运动。根据“You can join the running club.”可知，询问的是加入什么俱乐部，故选C。 17．—_________ class are you in? —I’m in Class 3. A．What B．Where C．How D．Who 【答案】A 【详解】句意：——你在哪个班级？——我在三班。 考查特殊疑问句。What什么；Where哪儿；How如何；Who谁。根据“I’m in Class 3.”可知，此处询问在哪个班级，用what class表示“哪个班级”。故选A。 18．—________ do you usually go to school? —By bike. A．How B．What C．Where D．When 【答案】A 【详解】句意：——你通常怎么去上学？——骑自行车。 考查特殊疑问句。How如何；What什么；Where哪里；When什么时候。根据“By bike.”可知，此处询问的是交通方式，用How进行提问。故选A。 19．—________do you like maths? —Because it’s useful. A．Why B．What C．When D．How 【答案】A 【详解】句意：——你为什么喜欢数学？——因为它有用。 考查特殊疑问句。Why为什么；What什么；When什么时候；How如何。根据答语“Because it’s useful.”可知，此处是询问喜欢数学的原因，应用why来提问。故选A。 20．—________ do you have English class? —On Monday and Friday. A．When B．What C．How D．Where 【答案】A 【详解】句意：——你什么时候上英语课？——在周一和周五。 考查特殊疑问句。When何时；What什么；How怎样；Where哪里。根据“On Monday and Friday”可知，询问上英语课的时间，故选A。 21．—________ are you? —I’m fine, thank you. A．How B．What C．Where D．Who 【答案】A 【详解】句意：——你好吗？——我很好，谢谢你。 考查特殊疑问句。how如何；what什么；where哪里；who谁。根据“I’m fine”可知此处询问对方好不好，疑问词用how。故选A。 22．—________ is your father? —He is a doctor. A．Who B．What C．Where D．How 【答案】B 【详解】句意：——你爸爸是做什么的？——他是一名医生。 考查特殊疑问句。who谁；what什么；where哪里；how如何。根据“He is a doctor”可知此处询问职业，疑问词用what。故选B。 提升训练 1．（22-23七年级上·辽宁沈阳·期末）—________ did you stop playing basketball? — Because I was very tired. A．How B．When C．Where D．Why 【答案】D 【详解】句意：——你为什么停止打篮球？——因为我很累。 考查特殊疑问句。how如何；when什么时候；where哪里；why为什么。根据“Because I was very tired.”可知此处询问原因，疑问词用why。故选D。 2．（23-24七年级上·安徽六安·期末）—________? —She is my friend, Jane. A． Who is the girl B．What’s your name C．Where is the girl from D．Why do you like the girl 【答案】A 【详解】句意：——这女孩是谁？——她是我的朋友，简。 考查特殊疑问词。Who is the girl那个女孩是谁；  What’s your name你叫什么名字；Where is the girl from那个女孩来自哪里；Why do you like the girl你为什么喜欢这个女孩。根据“She is my friend, Jane.”可知，上句提问的是那个女孩是谁。故选A。 3．（23-24七年级下·北京通州·期末）—______ is your favourite teacher? —Mrs. Wang. She is our English teacher and she is kind to us. A．How old B．Who C．Where D．When 【答案】B 【详解】句意：——你最喜欢的老师是谁？——王老师。她是我们的英语老师，她对我们很好。 考查特殊疑问句。how old多少岁；who谁；where在哪里；when什么时候。根据“Mrs. Wang.”可知，对人提问用疑问词who，故选B。 4．（24-25七年级上·江苏连云港·期末）—________ will you stay in Beijing? —For about one week. A．How much B．How often C．How long D．How many 【答案】C 【详解】句意：——你将会在北京待多久？——大约一个星期。 考查特殊疑问句。How much多少钱；How often多久一次；How long多长时间；How many多少。根据答语“For about one week.”可知，是在询问时间的长短。故选C。 5．（23-24七年级下·北京朝阳·期末）—________ is that skirt? —It’s 150 yuan. A．How many B．How much C．How old D．How long 【答案】B 【详解】句意：——那条裙子多少钱？——它是150元。 考查特殊疑问句。how many多少，提问可数名词的数量；how much多少，对不可数名词/价钱进行提问；how old多少岁；how long多长时间。根据答语“It’s 150 yuan”可知是问价格，故选B。 6．（23-24七年级下·北京朝阳·期末）—Excuse me. ________ is the post office? —It’s opposite the bank, just over there. A．What B．Where C．Why D．Who 【答案】B 【详解】句意：——打扰一下。邮局在哪里? ——它在银行的对面，就在那边。 考查特殊疑问词辨析。What什么；Where在哪里；Why为什么；Who谁。根据“It’s opposite the bank, just over there.”可知，是对地点提问，要用Where。故选B。 7．（22-23七年级下·甘肃陇南·期末）—_________ are these socks?    —It’s seven dollars. A．How much B．How many C．How old D．How about 【答案】A 【详解】句意：——这些袜子多少钱？——7美元。 考查特殊疑问句。How much多少钱；How many多少，提问可数名词数量；How old多大；How about……怎么样。根据“It’s seven dollars.”可知，问句是问价格，用how much提问。故选A。 8．（22-23七年级下·陕西西安·期末）—________ is it from your home to your school? —It is about 10 minutes’ ride. A．How long B．How far C．How soon D．How often 【答案】B 【详解】句意：——从你家到学校有多远？——大约10分钟的车程。 考查特殊疑问句。How long多长时间；How far多远；How soon多久以后；How often多久一次。根据“from your home to your school”可知对距离提问用How far。故选B。 9．（22-23七年级下·四川成都·期末）—________ do you want to join? —I want to join the English club. A．What time B．How C．What club 【答案】C 【详解】句意：——你想要加入什么俱乐部？——我想要加入英语俱乐部。 考查特殊疑问句。What time几点了；How怎样；What club什么俱乐部。根据“I want to join the English club.”可知，问句应是在询问加入什么俱乐部。故选C。 10．（22-23七年级下·河北石家庄·期末）—________ is the post office? —Don’t worry. Let’s find it on the map first. A．When B．What C．How D．Where 【答案】D 【详解】句意：——邮局在哪里？ ——别担心。让我们先在地图上找到它。 考查特殊疑问句。When什么时候；What什么；How怎么样；Where在哪里。根据“Let’s find it on the map first.”可知，此处是询问邮局的地点，应用where引导特殊疑问句。故选D。 11．（22-23七年级下·重庆渝中·期末）—________ is it from your school to your home? —It’s about five kilometers. A．How far B．How much C．How many D．How soon 【答案】A 【详解】句意：——从你的学校到你家有多远？——大约五公里。 考查疑问词辨析。How far多远；How much多少钱；How many多少，提问可数名词的数量；How soon多久，用于将来时。根据“It’s about five kilometers.”可知，应是问距离的，用特殊疑问词how far。故选A。 12．（19-20七年级上·湖北·期末）—________ do you like Miss Sun? —Because her classes are very interesting. A．What B．Who C．How D．Why 【答案】D 【详解】句意：——你为什么喜欢孙老师？—— 因为她的课非常有趣。 考查疑问词。What什么；Who谁；How怎样；Why为什么。由答语“Because her classes are very interesting.”推断上句是询问原因，疑问词用why，故选D。 13．（23-24七年级上·湖北十堰·期末）—________ is the art festival? —I think it’s in March, but I’m not sure. A．What B．Where C．When D．How 【答案】C 【详解】句意：——何时是艺术节？——我认为它在三月，但我不确定。 考查特殊疑问句。What什么；Where哪里：When何时；How怎样。根据“I think it’s in March”可知，空处是对时间提问的，需特殊疑问词When。故选C。 14．（23-24七年级上·湖北襄阳·期末）—________ are those in the box? —They are white sweaters. A．How much B．What color C．What D．Where 【答案】C 【详解】句意：——盒子里的那些是什么？——它们是白色毛衣。 考查特殊疑问句。How much多少，多少钱；What color什么颜色；What什么；Where哪里。根据回答“They are white sweaters.”可知，询问的是盒子里的那些是什么。故选C。 15．（23-24七年级上·江西吉安·期末）—______ bread do you want? —I need three bags of bread. A．How many B．How much C．How old D．How long 【答案】B 【详解】句意：——你想要多少面包？——我需要三包面包。 考查特殊疑问句。how many多少，修饰可数名词；how much多少，修饰不可数名词；how old多大年龄；how long多长。根据“I need three bags of bread.”可知，问需要多少面包，bread是不可数名词，故选B。 16．（23-24七年级上·湖北·期末）—________ is the letter from? —It’s from England. A．Who B．Where C．What D．When 【答案】B 【详解】句意：——这封信是从哪里来的？——它来自英国。 考查特殊疑问句。Who谁；Where哪里；What什么；When什么时候。根据答语“It’s from England.”可知，此处询问地点。故选B。 17．（23-24七年级上·河北邯郸·期末）—_______ are you looking for? Everyone is here. —I don’t think so. Where’s David? A．When B．Who C．What D．Where 【答案】B 【详解】句意：——你在找谁？每个人都在这儿了。——我不这么认为。David在哪儿？ 考查特殊疑问词。when何时；who谁；what什么；where哪儿。根据“Where’s David?”可知，此处询问在找的人是谁。故选B。 18．（22-23七年级上·江西吉安·期末）— ________ is Betty’s small sister? — She’s only one month old. A．When B．How old C．What number D．Who 【答案】B 【详解】句意：——Betty的小妹妹多大了？——她只有一个月大。 考查疑问代词用法。When何时；How old多大；What number什么号码；Who谁。根据答句可知，空处是询问年纪多大，需用How old。故选B。 19．（23-24七年级上·湖北武汉·期末）— ________? —It is Friday. It’s my big day. A．What day is it today B．What’s the date today C．How’s your day D．What time is it 【答案】A 【详解】句意：——今天星期几？——星期五。今天是我的大日子。 考查特殊疑问句。What day is it today今天星期几；What’s the date today今天几号；How’s your day你今天过得怎么样；What time is it现在几点。根据“It is Friday”可知是询问星期几，故选A。 20．（23-24七年级上·河北石家庄·期末）— ________ people are there in your family? — There are five. A．How many B．How much C．What color D．How old 【答案】A 【详解】句意：——你家里有几口人？——有5口人。 考查特殊疑问词组。How many多少，修饰名词复数；How much多少或多少钱；What color什么颜色；How old多大。根据答句可知，告知了有5口人，故空处是对数量提问的，people为可数名词，需用How many。故选A。 $$