Unit 2 Water
重点语法 宾语从句
（时间：40分钟，满分：100分）
一、单项选择(本大题共50小题，每小题2分，共100分)
1．Do you know if it ________ tomorrow If it ________ tomorrow, I’ll wear more clothes.
A．snows, will snow B．will snow, will snow
C．snows, snows D．will snow, snows
2．—Julia, I want to know ________.
—The people and the food.
A．how do you like China B．how you like China
C．what do you like about China D．what you like about China
3．—Mum, can you tell me _______
—Keys They’re under the table.
A．who they are B．what’s under the table
C．whose keys are these D．where my keys are
4．Helen Keller once said “Keep your face to the sunshine and you cannot see a shadow.” It tells us ________.
A．when can we find a warm place
B．where does the sun rise from
C．what readers should see in a sunny day
D．how people can live a happy life
5．The sentence “A true friend reaches for your hand and touches your heart” tells us ________.
A．whether we need a true friend B．what true friends are like
C．where can we find true friends D．how can we make friends
6．—Do you know what the saying “Actions speak louder than words”means
—It tells us ________.
A．how should we do in daily life B．why we need communication
C．how do we take the first step D．what you do is more important
7．—Could you tell me ________
—It’s over there across from the hospital.
A．when the park opens B．how far is the park
C．where the park is D．how I can get to the park
8．My friend is wondering _________.
A．how long he has fallen in love with Jane B．which course should he take for this term
C．which is the way to the nearest bank D．what was Taizhou like years ago
9．—Mum, I don’t remember ________ my history book yesterday.
—I saw a history book on your bookshelf just now. Maybe it is yours.
A．where I will put B．where did I put
C．where will I put D．where I put
10．—Excuse me. Could you tell me ________
—You can take the No.1 bus there.
A．when I can get to the bank B．where can I find the bookshop
C．how I can get to the market D．what can I do with the bus
11．—Let’s go to Jenny’s home to enjoy her stamps now.
—Good idea. I’ll call her to see ________ she is at home.
A．whether B．that C．where D．how
12．—Can you tell me ________ the book, Tony
—Yes. I bought the book in Xinhua Bookstore.
A．where you bought B．where did you buy
C．where will you buy D．where you will buy
13．—Do you know ________ tea was first drunk
—Not exactly. Was it before the Tang Dynasty
A．where B．when C．how
14．—Hi, Sandy! Could you please tell me ________
—With pleasure. Wait a moment, please.
A．if the scarf looked nice on me B．what’s the new product like
C．that Guilin is worth visiting D．how I can order a robot online
15．— Would you like to join in the competition
— I’d love to, but it depends on ________ it is worth doing.
A．whether B．if C．who D．what
16．—Hey, Mike! Guess ________ for my coming winter vacation.
—To Hainan Island You always like somewhere warm.
A．what will I do B．where I’m going
C．when I left D．who I’m going with
17．—What about visiting Harbin during this winter holiday
—That’s wonderful! Could you tell me ________
A．how long will we stay there B．if we went to Ice and Snow World
C．that we will feed tigers there D．what we should wear to keep warm
18．—Jerry promised that he ________ to the birthday party this evening. But where’s he
—Maybe he has forgotten. Let’s call him.
A．came B．will come C．would come D．has come
19．—Can you tell me ________
—Of course. He is a doctor.
A．where is he B．what he likes
C．what he is D．how he is
20．—Do you know if it ________ tomorrow
—I’ve got no idea. I’m afraid the New Year’s Party will be put off if it ________.
A．rains; rains B．will rain; rains
C．will rain; will rain D．rains; will rain
21．—What do you think of the poem the Yellow Crane Tower written by Cui Hao
—The famous line “Where is my native land beyond the setting sun The misty waves of River Han make me homesick” tells us ________.
A．where did the writer stand B．how the writer missed his hometown
C．why the writer visited the tower D．when did the writer visit the tower
22．—How soon will you start your journey to Harbin
—I haven’t decided it. I’m not sure ________.
A．that I shall go there by train B．when shall I ask the boss for leave
C．which hotel I stayed in D．who I can invite to go with
23．I don’t know if Tom ________. If he ________, I will tell you.
A．will come; will come B．comes, will come
C．comes; comes D．will come; comes
24．I want to know __________ so nice a coat.
A．what did you buy B．how you bought
C．why did you buy D．where you bought
25．This famous saying “Learning without thinking is useless.” tells us ________.
A．how can we learn better and better B．who can learn best of all
C．what we should do while studying D．why we have to study hard
26．You just came back from Beijing. I wondered _______.
A．how did you visit the city B．where did you visit
C．which hotel you stay in Beijing D．what you thought of the food there
27．I want to know ________ so nice a coat.
A．what did you buy B．why you bought
C．who did you buy D．where you bought
28．I hope you ________ to see your grandmother this Sunday.
A．will go B．goes C．went D．was going
29．—Could you tell me ________ for the fruit
—You can just pay on the phone.
A．how I can pay B．when I can pay C．what I should pay D．how much I should pay
30．— Do you think ________ housework
— Of course not. Doing housework is good for them.
A．should students be kept away from B．students should be kept away from
C．should students be keeping away from D．students should be keeping away from
31．—I want to know ________ these two books are.
—Two dollars.
A．how much B．how many C．how long D．how often
32．—Could you please tell me ________
—Next Saturday morning.
A．where the science museum is
B．how we will go to the science museum
C．when we will go to the science museum
33．This famous saying “The morning of spring in bed am I lying, not awake till birds are singing everywhere.” Tells us ________.
A．that the poet overslept in spring morning B．why did the poet wake up suddenly
C．how happy the poet felt about the spring season D．what trouble the noisy birds caused
34．—Do you know the famous saying “It’s never too late to learn.”
—It tells us ________.
A．learning is too late B．how can you learn well
C．learning is a lifelong journey D．when can you learn
35．—I’m excited about Huawei’s new smartphones. Do you know ________
—Next month.
A．how can I get one B．who bought one for me
C．when they will come out D．where I can get one
36．The saying “I do self-inspection (检查) on three matters each day” from Master Zeng tells us ________.
A．what the three matters are B．who should do self-inspection
C．how we should face the challenges D．how we can better ourselves in our daily life
37．—Do you know _________ on weekends I’d like to go there with my friends this weekend.
—Yes, I do. It opens at 8: 00 a.m.
A．when the National Museum opens
B．when does the National Museum open
C．when the National Museum opened
D．when did the National Museum open
38．—Excuse me, how long will it take me to get to the post office
—Well, it depends on _______.
A．why you will go there B．how you will go there
C．where you will go D．how will you go there
39．—I wonder ________.
—Yes. The art festival is held once a year in our school.
A．why you have an art festival in your school
B．that do you have an art festival in your school
C．whether you have an art festival in your school
D．when do you have an art festival in your school
40．Let’s have a ________ party for her to show ________ we’re going to miss her.
A．surprising; how much
B．surprised; so much
C．surprise; how much
41．Can you predict ___________ if the story in The Three Body Problem (《三体》) comes true
A．what is our world like B．what our world will be like
C．how will our world be D．how our world is like
42．He wondered .
A．where did the girl come from B．why he failed the exam
C．how could he get well with others D．whether it is the best way to solve the problem
43．The famous poem by Li Bai “Its torrent (急流) dashes down three thousand feet from high, as if the silver river fell from azure (天蓝的) sky” tells us ________.
A．where we can enjoy the beautiful scenery B．what is the waterfall like
C．how the poet loves the beautiful motherland D．why is the mountain so high
44．—You look worried. What’s wrong
—I don’t know ________.
A．how should I solve this problem B．what I should solve this problem
C．how to solve this problem D．what to solve this problem
45．—Now, boys and girls. After hearing I Believe I Can Fly, do you know ________
—By believing in ourselves, Ms. Peng.
A．whether we can succeed B．what helps us succeed in the future
C．how we can succeed D．who can help us to succeed
46．—Mr. Cool asks me ________.
—Does he want to call your father
A．what my father’s number is
B．why my father looks happy
C．when my father’s birthday is
D．where my father is
47．—Could you please tell me ________
—OK. I will go to Beijing next week.
A．where will you go B．how you will go to Beijing
C．when you will go to Beijing D．why will you go to Beijing
48．I don’t know if Jim ________ hiking this afternoon. If he ________, I’ll tell you.
A．goes; goes B．will go; goes C．goes; will go D．will go; will go
49．Catherine said that she ________ to Guangzhou.
A．has never gone B．had never gone
C．has never been D．had never been
50．— Look at that pretty girl! Do you know what she is
— ________.
A．She is dancing B．She is a dancer
C．She goes to school D．She is doing her homework
参考答案：
1．D
【详解】句意：你知道明天会不会下雪吗？如果下雪，我将要穿更多的衣服。
考查时态和条件状语从句。第一句是宾语从句，主句一般现在时，从句根据时间状语tomorrow可知，用一般将来时，排除选项A和C；第二句是if引导的条件状语从句，遵循主将从现原则，主句一般将来时，从句一般现在时，从句主语是it，谓语动词应用第三人称单数形式，排除选项B。故选D。
2．D
【详解】句意：——朱丽叶，我想知道你喜欢中国什么。——人和食物。
考查宾语从句。结合句子分析以及选项可知此处需填宾语从句，从句应为陈述句句型，因此A和C不符合；又由答语“The people and the food.”可知，说的是“人和食物”，因此判断提问问的是“喜欢中国的什么”用“what”。故选D。
3．D
【详解】句意：——妈妈，你能告诉我钥匙在哪吗？—— 钥匙？它们在桌子下。
考查宾语从句和情景交际。who they are他们是谁； what’s under the table桌子下是什么；whose keys are these这些是谁的钥匙；where my keys are我的钥匙在哪。空处作tell的宾语，是宾语从句，所以用陈述句语序，根据回答“Keys They’re under the table.”可知，空处是询问钥匙在哪。故选D。
4．D
【详解】句意：海伦 凯勒曾经说过“面向阳光，就看不到阴影。”这句话告诉我们如何过快乐的生活。
考查宾语从句。when can we find a warm place疑问句语序；where does the sun rise from疑问句语序；what readers should see in a sunny day阳光明媚的日子里读者应该看什么；how people can live a happy life人如何过快乐的生活。根据句中的名言“面向阳光，你就看不到阴影。”可知这是教人如何过快乐的生活。故选D。
5．B
【详解】句意：“一个真正的朋友向你伸出手，触动你的心”这句话告诉我们真正的朋友是什么样子的。
考查宾语从句。whether we need a true friend我们是否需要一个真正的朋友；what true friends are like真正的朋友是什么样子的；where can we find true friends我们在哪能够找到真正的朋友；how can we make friends我们能怎样交朋友。根据“The sentence ‘A true friend reaches for your hand and touches your heart’ tells us”可知，本句空格处为宾语从句，应用陈述句语序，排除C、D选项；且这句话是在说真正的朋友是什么样子的。故选B。
6．D
【详解】句意：——你知道“行胜于言”这句话是什么意思吗？——它告诉我们行动更重要。
考查宾语从句。结合选项分析答语的句子结构可知，空处为宾语从句，宾语从句应用陈述语序，故排除选项A和C，再根据问句中“Actions speak louder than words”可知，空处指是行动更重要。故选D。
7．C
【详解】句意：——你能告诉我公园在哪里吗？——就在医院对面。
考查宾语从句和情景交际。when the park opens公园什么时候开放；how far is the park公园有多远；where the park is公园在哪里；how I can get to the park我怎么去公园。空处在句中作tell的宾语，所以是宾语从句，从句用陈述句语序；结合答语“It’s over there across from the hospital.”可知，是问公园在哪里，故选C。
8．C
【详解】句意：我的朋友想知道怎么去最近的银行。
考查宾语从句。根据“wondering”可知后接宾语从句，从句应采用陈述语序，排除B和D。选项A中“fallen in love with”为非延续性动词，在现在完成时的句子中与持续的一段时间连用时应用be in love with来表示，因此选项A表述有误。故选C。
9．D
【详解】句意：——妈妈，我不记得昨天我把历史书放在哪里了。——我刚才在你的书架上看到一本历史书。也许是你的。
考查宾语从句。分析句子可知，此句是含宾语从句的复合句，宾语从句用陈述句语序，排除选项B和C；再根据“yesterday”可知，从句时态为一般过去时，动词应用过去式，put的过去式为put，故选D。
10．C
【详解】句意：——打扰一下。你能告诉我怎么去市场吗？——你可以乘1路公共汽车到那里。
考查宾语从句。when I can get to the bank我什么时候能去银行；where can I find the bookshop我在哪里可以找到书店；how I can get to the market我怎么去市场；what can I do with the bus我怎么处理公共汽车。根据答语“You can take the No.1 bus there.”可知，在问路，故选C。
11．A
【详解】句意：——我们现在去珍妮家欣赏她的邮票吧。——好主意。我要打电话给她，看她是否在家。
考查宾语从句。whether是否；that无实际含义；where在哪里；how如何。根据“I’ll call her to see...she is at home.”可知，打电话确认珍妮是否在家，故选A。
12．A
【详解】句意：——你能告诉我你在哪里买的这本书吗，托尼？ ——可以。我在新华书店买了这本书。
考查宾语从句。根据“I bought the book in Xinhua Bookstore.”可知，回答者去新华书店买书这一动作已经发生，应用一般过去时，排除C、D选项。根据英语语法，宾语从句应用陈述语序，故选A。
13．B
【详解】句意：——你知道茶最早是什么时候喝的吗？——不是很清楚。是在唐朝之前吗？
考查宾语从句。where哪里；when什么时候；how怎样。根据“Was it before the Tang Dynasty ”可知是问时间，故选B。
14．D
【详解】句意：——你好，桑迪！你能告诉我如何在网上订购机器人吗？ ——我的荣幸。请稍等。
考查宾语从句。根据“Could you please tell me”可知，本句为宾语从句，用陈述语序，这里是问句不能用that引导，Could you please tell me是一般现在时，从句也应用一般现在时态。故选D。
15．A
【详解】句意：——你想要参加比赛吗？——我想要，但是取决于它是否值得做。
考查宾语从句的引导词辨析。whether是否；if是否；who谁；what什么。根据“it depends on”和“it is worth doing”可知应是取决于是否值得做，而其前为介词，所以此处只能用whether，故选A。
16．B
【详解】句意：——嘿！迈克，猜猜即将来临的寒假我要去哪里？——海南岛吗？你总是喜欢暖和的地方。
考查宾语从句。根据“To Hainan Island”可知，空处应是询问地点，用引导词where。故选B。
17．D
【详解】句意：——这个寒假去哈尔滨旅游怎么样？——太棒了！你能告诉我我们应该穿什么保暖吗？
考查宾语从句。根据“tell me”可知，本题考查宾语从句，宾语从句要用陈述语序，可先排除A；根据“What about visiting Harbin during this winter holiday ”可知，寒假还未到，所以不能用一般过去时，可排除B；根据“Could you tell me… ”可知，是在提问，连接词不能用that，故可排除C。故选D。
18．C
【详解】句意：——杰瑞答应今晚来参加生日聚会。但他在哪里？——也许他已经忘记了。我们给他打电话吧。
考查动词时态。主句“Jerry promised that”为一般过去时，宾语从句应用相应的过去时态；结合从句的时间状语“this evening”可知，该从句应使用过去将来时“would do”，故选C。
19．C
【详解】句意：——你能告诉我他是什么人吗？——当然。他是个医生。
考查宾语从句。where is he他在哪里；what he likes他喜欢什么；what he is他是什么；how he is他怎么样。根据“He is a doctor.”可知应询问“他是什么”，故选C。
20．B
【详解】句意：——你知道明天会不会下雨吗？——我不知道。如果下雨的话，新年晚会恐怕会推迟。
考查时态。第一个句子是if引导的宾语从句，主句是现在时，根据“tomorrow”可知从句用一般将来时will do；第二个句子是if引导的条件状语从句，遵循主将从现，从句用一般现在时，主语是it，谓语动词用单三。故选B。
21．B
【详解】句意：——你觉得崔颢写的《黄鹤楼》这首诗怎么样？——著名的那句“日暮乡关 何处是？ 烟波江上使人愁。”告诉我们作者对家乡的思念。
考查宾语从句。分析句子，该句是宾语从句，应使用陈述语气，排除A、D两个选项；结合诗句中的关键词“make me homesick”可知这句话表达的是思乡之情。故选B。
22．D
【详解】句意：——你还有多久出发去哈尔滨？——我还没决定。我还不确定能邀请谁和我一起。
考查宾语从句和关系词。首先从句必须是陈述句，因此排除B；其次根据主句时态可知为一般将来时，因此排除C；A选项句意不完整，需排除；因此选项D“我不确定能邀请谁和我一起”正确。故选D。
23．D
【详解】句意：我不知道汤姆是否会来。如果他来了，我会告诉你。
考查时态。第一个句子是if引导的宾语从句，主句是现在时，根据语境可知从句应用一般将来时will do；第二个句子是if引导的条件状语从句，遵循主将从现，从句用一般现在时，主语是he，谓语动词用单三。故选D。
24．D
【详解】句意：我想知道你在哪里买的这么漂亮的外套。
考查宾语从句。根据“I want to know”可知，句子是宾语从句，从句用陈述语序，排除AC；根据“so nice a coat.”可知此处应询问在哪里买的这么漂亮的外套，用where引导宾语从句。故选D。
25．C
【详解】句意：“学而不思则罔”这句名言告诉我们学习时应该做什么。
考查宾语从句。宾语从句应用陈述语序，且根据“Learning without thinking is useless.”可知，这句名言是告诉我们学习时应该做什么，用what引导宾语从句。故选C。
26．D
【详解】句意：你刚从北京回来。我想知道你觉得那里的食物怎么样。
考查宾语从句。宾语从句应用陈述语序，故排除A、B两个选项；主句“I wondered”是一般过去时，从句应是过去的某种时态，排除选项C。故选D。
27．D
【详解】句意：我想知道你在哪里买的这么漂亮的外套。
考查宾语从句。句子是宾语从句，用陈述语序，排除AC；根据“want to know...so nice a coat”可知应是想知道在哪里买的外套，用where引导宾语从句。故选D。
28．A
【详解】句意：我希望你这个星期天去看望你的祖母。
考查时态。句子是宾语从句，主句是现在时，根据“this Sunday”可知从句用一般将来时will do。故选A。
29．A
【详解】句意：—— 你可以我可以怎么为水果付钱吗？—— 你在手机上付款就行。
考查宾语从句。how I can pay我如何付款；when I can pay我什么时候付款；what I should pay我应该支付什么；how much I should pay我应该付多少钱。根据“You can just pay on the phone.”（你可以用手机支付。）可知，应该是询问如何付款，因此选A项。故选A。
30．B
【详解】句意：——你认为应该让学生远离家务劳动吗？——当然不是。做家务对他们有好处。
考查宾语从句。句子是宾语从句，用陈述语序，排除AC；主语students和谓语keep away from是被动关系，此处用被动语态，排除D。故选B。
31．A
【详解】句意：——我想知道这两本书多少钱。——两美元。
考查宾语从句的引导词。how much多少钱；how many多少；how long多长时间；how often多久一次。根据“Two dollars”可知此处询问价格，用how much。故选A。
32．C
【详解】句意：——你能告诉我我们什么时候参观科学博物馆吗？——下个星期六上午。
考查宾语从句。where the science museum is科学博物馆在哪里；how we will go to the science museum我们怎样去科学博物馆；when we will go to the science museum我们什么时候参观科学博物馆。根据“Next Saturday morning.”可知是问时间，故选C。
33．C
【详解】句意：这句名句“春眠不觉晓，处处闻啼鸟。”告诉我们诗人对春天感到多么高兴啊。
考查宾语从句及常识。that the poet overslept in spring morning诗人在春天的早晨睡过头了；why did the poet wake up suddenly诗人为什么突然醒来；how happy the poet felt about the spring season诗人对春天感到多么高兴啊；what trouble the noisy birds caused吵吵闹闹的鸟儿惹了多大的麻烦啊。空处是宾语从句，要用陈述句语序，排除B选项；结合诗句的意思可知，是诗人抓住春天的早晨刚刚醒来时的一瞬间展开联想，描绘了一幅春天早晨绚丽的图景，抒发诗人热爱春天，珍惜春光的思想感情，所以C选项意思符合语境，故选C。
34．C
【详解】句意：——你知道那句名言“活到老学到老。”吗？——它告诉我们学习是一个终身的旅程。
考查宾语从句和常识。分析句子结构并结合选项可知，空处所在句为宾语从句，从句应用陈述语序，所以可排除B项和D项；“It’s never too late to learn.”的意思是“活到老学到老。”，所以C项正确。故选C。
35．C
【详解】句意：——我对华为的新智能手机感到兴奋。你知道它们什么时候生产出来吗？——下一个月。
考查宾语从句。how can I get one我怎样才能得到一个呢；who bought one for me谁给我买的；when they will come out他们什么时候会出来；where I can get one我在哪里可以买到一个。根据“Next month”可知，此处询问时间，因此用疑问词when引导宾语从句，故选C。
36．D
【详解】句意：曾大师的一句话“吾日三省吾身”告诉我们如何在日常生活中改善自己。
考查宾语从句。由“I do self-inspection (检查) on three matters each day”可知，这句话的意思是如何让自己变得更好。故选D。
37．A
【详解】句意：——你知道国家博物馆周末何时开放吗 我这周末想和朋友一起去那里。——是的，我知道。上午八点开门。
考查宾语从句。根据答语中的“It opens at 8: 00 a.m.”可知，时态为一般现在时。故宾语从句的时态使用一般现在时。又因为宾语从句使用陈述语序。故选A。
38．B
【详解】句意：——打扰一下，到达邮局花费你多长时间？——嗯，取决于你将如何去那儿。
考查宾语从句。why you will go there为什么你去那儿；how you will go there你将如何去那儿，陈述句语序；where you will go你将去哪里；how will you go there你将如何去那，疑问句。根据“how long will it take me to get to the post office”和“it depends on”可知取决于你的方式，所以排除AC，由于宾语从句是陈述句语序，所以是排除D。故选B。
39．C
【详解】句意：——我想知道你们学校是否有艺术节。 ——是的。我们学校每年举行一次艺术节。
考查宾语从句。根据“wonder”可知，空格处为宾语从句，应用陈述语序，结合“The art festival is held once a year in our school.”可知，上句在问是否有艺术节。故选C。
40．C
【详解】句意：让我们为她举办一个惊喜派对，以表明我们会多么想念她。
考查名词用法和宾语从句的引导词。surprising令人惊讶的，物作主语或修饰物；surprised惊讶的，人作主语；surprise惊讶，是名词；how much多么，是副词短语；so much那么多。surprise party“惊喜派对”。根据“we’re going to miss her”可知是多么想念她，第二空用how much，引导宾语从句。故选C。
41．B
【详解】句意：你能预测如果《三体》里的故事成真，我们的世界会是什么样子吗？
考查宾语从句。宾语从句用陈述语序，排除AC；根据“predict”可知，预测的事情发生在将来，从句应用一般将来时，排除D。故选B。
42．B
【详解】句意：他想知道自己为什么考试不及格。
考查宾语从句。句子是宾语从句，用陈述语序，排除AC；根据“wondered”可知主句是过去时，故从句用过去的某种时态，排除D。故选B。
43．C
【详解】句意：李白的著名诗句“飞流直下三千尺，疑是银河落九天”告诉我们诗人有多么地热爱美丽的祖国。
考查宾语从句。根据宾语从句要用陈述语序，故只能选A和C；根据上文“Its torrent (急流) dashes down three thousand feet from high, as if the silver river fell from azure (天蓝的) sky”诗句可知，此处表现了诗人对于祖国大好河川的热爱。故选C。
44．C
【详解】句意：——你看起来很担心。怎么了？——我不知道如何解决这个问题。
考查宾语从句语序和疑问词+不定式。根据“I don’t know…”可知，此处应用宾语从句，使用陈述语序，排除A选项和B选项；solve后已经有宾语，故此处疑问词用how。故选C。
45．C
【详解】句意：——现在，孩子们。听完《我相信我能飞》，你知道我们怎样才能成功吗？——相信我们自己，彭老师。
考查宾语从句。宾语从句使用陈述性语气，排除D；根据“By believing in ourselves, Ms. Peng.”可知设空处是“我们怎样才能成功”。故选C。
46．A
【详解】句意：——Mr. Cool问我我父亲的电话号码是多少。——他想给你父亲打电话？
考查宾语从句。what my father’s number is我父亲的电话号码是多少；why my father looks happy我父亲为什么看起来高兴；when my father’s birthday is我父亲的生日是何时；where my father is我父亲在哪。根据“Does he want to call your father ”可知，此处是指问我我父亲的电话号码是多少。故选A。
47．C
【详解】句意：——你能告诉我你什么时候去北京吗？——好的。我下星期要去北京。
考查宾语从句。句子是宾语从句，用陈述语序，排除AD；根据“I will go to Beijing next week.”可知是询问什么时候去北京，用when引导宾语从句。故选C。
48．B
【详解】句意：我不知道吉姆今天下午是否会去远足。如果他去了，我会告诉你的。
考查动词时态。第一句if引导宾语从句，主句是一般现在时，从句时态不限制。根据“this afternoon”可知，应用一般将来时，排除AC；第二句if引导条件状语从句，遵循主将从现原则，从句用一般现在时，故选B。
49．D
【详解】句意：凯瑟琳说她从未去过广州。
考查宾语从句和动词时态。has gone to去了，人未回；has been to去过，人已回。主句谓语动词said是一般过去时，宾语从句也应该使用过去的某一种时态，排除A、C两个选项；根据“Catherine said”可知凯瑟琳已经回来了，排除B。故选D。
50．B
【详解】句意：——看那个漂亮的女孩！你知道她是做什么的吗？——她是舞者。
考查宾语从句。She is dancing“她在跳舞”；She is a dancer“她是舞者”；She goes to school“她去学校”；She is doing her homework“她正在做家庭作业”。根据“Do you know what she is ”可知，你知道她是做什么的吗？这是在询问职业，故选B。

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