中考英语专项练习——句子结构（含答案解析）

中考专项练习之句子结构
1.???The?girl?never?goes?out?at?night．That's???????she?is?afraid?of?darkness．（　　）
A.?why?????????????????????????B.?because?????????????????????????C.?what?????????????????????????D.?how
2.???Our?math?teacher?______?in?our?school?for?20years?and?he?_____?here?when?he?was?23years?old．（　　）
A.?has?taught，has?come????????????????????????????????????????B.?taught，comes????????????????????????????????????????C.?taught，came????????????????????????????????????????D.?has?taught，came
3.???-What?do?you?think?of?the?movie?Transformers?IV《变形金刚4》？-It?is?______?exciting?______?I'd?like?to?see?it?again．（　　）
A.?too，to?????????????????????????B.?such，that?????????????????????????C.?as，as?????????????????????????D.?so，that
4.???The?reason?why?I?didn't?go?to?Shanghai?was?________?a?new?job．（　　）
A.?because?I?got????????????????????????????????????????B.?because?of?getting????????????????????????????????????????C.?I?got????????????????????????????????????????D.?that?I?got
5.???Sichuan?food?is?hotter?than?Shanghai?food．That's?______________．（　　）
A.?what?I?like?it????????????????????????????????????????B.?what?do?I?like?it????????????????????????????????????????C.?why?I?like?it????????????????????????????????????????D.?why?do?I?like?it
6.???---We?often?find?it?hard?to?drive?a?car?in?the?rush?hour． ---That's?________many?people?would?rather?ride?bikes?in?our?city．（　　）
A.?because?????????????????????????B.?why?????????????????????????C.?when?????????????????????????D.?how
7.???-Look at the boy with green hair.It's cool! -But I don't think students________to color their hair.
A.?mustn't be allowed???????????????????????????????????????????B.?should be allowed????????????????????????????????????????C.?must allow???????????????????????????????????????????D.?should't be allowed
8.???_____ he was very tired, he continued working in his office.
A.?Since?????????????????????????B.?Although?????????????????????????C.?As soon as?????????????????????????D.?Because
9.???--- Could you tell me_____ yuanxiao in china? --- Usually at Lantern Festival.
A.?when do people eat????????????????????????????????????????B.?how do people eat????????????????????????????????????????C.?when people eat????????????????????????????????????????D.?how people ear
10.???It was raining heavily, _____ we decided to stay at home and watch TV.
A.?but?????????????????????????B.?or?????????????????????????C.?because?????????????????????????D.?so
11.???– David, could you tell me _________? -- Every four years.
A.?when the 2014 World Cup will finish
B.?how often the World Cup takes place
C.?how many teams take part in the World Cup
D.?who may score the most goals in the World Cup
12.???- Could you tell me ________? ????- In August, 2014.
A.?where will the Youth Olympic Games take place
B.?when will the Youth Olympic Games take place
C.?where the Youth Olympic Games will take place
D.?when the Youth Olympic Games will take place
13.???We can’t afford to make any mistakes. To us, __________.
A.?a miss is as good as a mile
B.?the grass is greener on the other side
C.?it never rains but it pours
D.?when in Rome, do as the Romans do
14.???一I can’t believe you have finished the work. 一 My friends helped me out. Just as the saying goes,”__________.”
A.?Practice makes perfect
B.?Put all your eggs in one basket
C.?Burn the candle at both ends
D.?Many hands make light work
15.???_______the exam, we'll say good-bye to our dear teachers, classmates as well as our beautiful school.
A.?In?????????????????????????B.?For?????????????????????????C.?After?????????????????????????D.?Through
16.???The Silk Road was 　　　long that it passed through many countries.?
A.?quite?? ? ? ? ? ??B.?too?? ? ? ? ? ? ???????????????C.?very?? ? ? ? ? ?D.?so ??????????????????????????????????????????
17.???-- Could you tell me _______? 　　
-Certainly. In half an hour. ? ??
A.?when will the high speed train arrive 　　
B.?when the high speed train will arrive 　　
C.?when would the high speed train arrive 　　
D.?when the high speed train would arrive 　
18.???Get up early, ____you’ll be late for school.
A.?so????????????????????????????????????????????????????B.?and???????????????????????????????????????????????????C.?or???????????????????????????????????????????????????D.?but
19.???The sentence structure of "Teachers ask me to finish the homework on time." is______.
A.?S+V+DO??? ???????????????????????????????????????????B.?S+V+IO+DO ??????????????????????????????????????????C.?S+V+DO+OC? ??????????????????????????????????????????????D.?S+V+P
20.???— What color is it?
??????? — ________.
A.????? It’s a blue. ? ?????????????????????????????????????????B.?It’s blue. ? ?????????????????????????????????????????C.?This is blue. ? ?????????????????????????????????????????D.?It’s a map.
21.???The shop in our school_______ from 8a.m. to 5 p.m..
??????????
A.?is opened???? ?????????????????????????????????????????????B.?opens ? ? ? ? ? ? ?????????????????????????????????????????C.?is opening?? ?????????????????????????????????????????????????D.?is open
22.???I hope my best friend _________ to my birthday party next Sunday.
A.?to come?????????????????????????B.?comes?????????????????????????C.?coming?????????????????????????D.?can come
23.???I hope my best friend _________ to my birthday party next Sunday. ??
A.?to come????????????????????????????????????????????????B.?come????????????????????????????????????????????????C.?coming????????????????????????????????????????????????D.?can come
24.???Ben was busy taking a training class，________we had to wait for him for half an hour.　
A.?so??????????????????????????B.?if??????????????????????????C.?or??????????????????????????D.?but
25.???—I don’t like beef______ fish. How about you?
—I don’t like beef, _______ I like fish very much.
A.?and；or , ? ? ? ?????????????????????????????????????????B.?and；but??????????????????????????????????????????C.?or；or ? ? ? ? ?????????????????????????????????????????D.?or；but
26.???________the waiter didn’t understand what the old lady was saying , he knew what she wanted.
A.??Unless ? ? ?????????????????????????????????????????B.??Because of??????????????????????????????????????????????C.??Even though ? ? ?????????????????????????????????????????D.??Because
27.???—Show me the map, please. I wonder ________．
—Look. It's here. In the east of China, near Taiwan Province.
A.?where is Diaoyu Island
B.?where Diaoyu Island is
C.?what is Diaoyu Island like
D.?when Diaoyu Island is
28.???No matter ______?? , you must follow the school rules.
A.??where are you????????????????????????????????????????B.??what do you do???????????????????????????????????????????C.??who are you?? ???????????????????????????????????????????D.??who you are
29.???Lin Dan is ??????famous ????? all the badminton fans in China know him．
A.?too;to ? ? ? ? ? ? ? ? ? ?B.?enough;to ? ? ? ? ? ? ? ? ?C.?as;as ? ? ? ? ? ? ? ? ? ? ?D.?so;that
30.???Jack isn’t a perfect boy. He sometimes talks back ______ his parents talk to him.
A.?if???? ?????? ?????? ???????????????B.?before?????? ?????? ???????????????????????C.?when ?????? ?????????????????????????D.?until
31.???I’m feeling sad______ my favorite friend will move to another school to study.
A.?though ?????? ????????????????????B.?because??? ???????????????????????C.?so????? ?????? ???????????????????????????D.?but
32.???---You study______?hard ______?you’re sure to pass the exam.
---Thank you .
A.?enough ;to????????????????????????B.?as; as?????????????????????C.?so; that???????????????????????????????D.?too; to
33.?______ the dinner was all over, everyone helped wash the dishes.?
A.??How???????????????????B.??When?? ????????????????C.??Before??????????????D.??Why
34.???Stop smoking, ________ your health will get worse soon.
A.?and???????????????????????????????????????????????????B.?or??????????????????????????????????????????????????????C.?but?????????????????????????????????????????????????????D.?s o
35.???Breakfast at home is healthy and delicious，________ I have to eat breakfast on the way to school because I can’t get up so early.
A.?and????????????????????????????????????B.?but?????????????????????????????????????C.?so??????????????????????????????????D.?or
36.???Take the exam carefully, ______ you won’t get full marks.
A.?so???????? ?? ??????????????????????????B.?and???????????????????????????????????C.?or
37.???—I’m worried about the coming test.
?????? —You should work hard for it,_____you’ll have to take it again.
A.?and?????????????????????????????????????????????????????????B.?or???????????????????????????????????????????????????????C.?but??????????????????????????????????????????????????????????D.?however
38.???I was busy, ______ I couldn’t go to the party last night.
A.?so??????????????????????????????B.?and??????????????????????????????C.?or???????????????????????????????D.?but
39.???My cousin knew little about the famous Film Cinderella______ he saw it yesterday evening.
A.?if?????????????????????????????B.?when???????????????????????????????C.?unless????? ??????????????????????????????D.?Until
40.???______ the dinner was all over, everyone helped wash the dishes.
A.?How????????????????????????????????B.?When????????????????????????C.?Before??????????????????????????????????D.?Why
41.???________ the bridge, and you’ll see the elephants.
A.?Across B.?Cross C.?Crossing D.?To cross
42.???—Are you going to climb the mountain tomorrow? —Yes. But if it ______,? I_______ at home.
A.?rains; stay. ? ? ? ? ?B.?will rain; stay. ? ? ? ? ?C.?rains; will stay. ? ? ?D.?will rain; will stay
43.???Not only________polluted but________crowded．
A.?was the city；were the streets
B.?the city was；were the streets
C.?was the city；the streets were
D.?the city was；the streets were
44.???--What are you going to do during this Spring Festival? ?? --If it ________ cold in Wuhan, I _______ go to the south with my family.
A.?will be; will???????????????????????????????????B.?is; will?????????????????????????????????????C.?will be; /?????????????????????????????D.?is; /
45.???If she ______ really hard, she’ll get good grades. ??
A.?work???????????????????????????????????????????????????B.?works????????????????????????????????????????????????C.?will work??????????????????????????????????????????????D.?will works
46.???Which of the following is not true?
A.?The computer doesn’t work.???????????
B.?There’s something wrong with my computer.????
C.?The computer has something wrong.????
D.?Something is wrong with my computer.
47.???The public is requiring the Malaysian government to share________ Flight MH370.
A.?what they have known about
B.?what have they known about
C.?when they have known about
D.?when have they known about
48.???—I have two apples. Which one do you like?
—I’d rather ?????????the smaller one.
A.?had???????????????????????????????????B.?to have????????????????????????????????C.?have?????????????????????????????????D.?having
49.???.A true friend can see the pains in your eyes______ everyone else believes the smile on your face.
A.?because???????????????????????????B.?while???????????????????????????C.?before???????????????????????????D.?until
50.???—_______do you go to school in the morning? __At 7:30.
A.?What?????????????????????????B.?What time?????????????????????????C.?How?????????????????????????D.?Where
【答案】
1.??A???????2.??D???????3.??D???????4.??D???????5.??C???????6.??B???????7.??B???????8.??B???????9.??C???????10.??D???????11.??B???????12.??D???????13.??A???????14.??D???????15.??C???????16.??D???????17.??B???????18.??C???????19.??C???????20.??B???????21.??D???????22.??D???????23.??D???????24.??A???????25.??D???????26.??C???????27.??B???????28.??D???????29.??D???????30.??C???????31.??B???????32.??C???????33.??B???????34.??B???????35.??B???????36.??C???????37.??B???????38.??A???????39.??D???????40.??B???????41.??B???????42.??C???????43.??C???????44.??B???????45.??B???????46.??C???????47.??A???????48.??C???????49.??B???????50.??B???????
【解析】
1.??
答案：A 分析句子，结合选项，推测意思是这个女孩晚上从不外出，那是因为她害怕黑．前后是一种因果关系，前面是that's，这里that's why意思相当于because因为，后面引导一个句子，故选A．B因为，前面不能用that's，C什么，D怎样．这个女孩晚上从不外出，那是因为她害怕黑．解答这类试题时，务必充分理解上下文的语境和前后文的逻辑关系，找到解题的依据，同时正确区分选项的细微差别，准确作答．
2.??
答案：D ? ?此题考查句子的时态． for?20 years是现在完成时的时间标志，第一个空用现在完成时，结构式：have/has+过去分词；when?he?was?23 years?old．是时间状语从句，表示过去的时间，故第二个空用一般过去时．故选D我们的数学老师在我们学校已经教了20年，当他23岁时就来这里了．本题主要是从他们各自的时间标志入手分别分析所该运用的时态．然后结合所给选项加以排除即可．
3.??
答案：D 根据答语的句子特点It?is?______?exciting?______?I'd?like?to?see?it?again．可知exciting?为形容词，I'd?like?to?see?it?again为一个从句，联系语境可知此句应该是对电影《变形金刚4》的评价为"它是如此令人兴奋以至于我想再看一遍"，所以符合so+形容词/副词+that的用法，如此…以至于，后引导一个结果状语从句；such…that也有同样的用法，但such后应该跟名词，故排除；too…to表"太…不能…"，意义和结构都不符合；as…as表和…一样，排除．故选：D-你认为电影《变形金刚4》怎么样？ -它是如此令人兴奋以至于我想再看一遍．此题考查so…that引导的结果状语从句的用法．做题时联系题干抓住关键词结合固定用法做出合理的判断，选用正确的固定用法即可．
4.??
答案为D．首先分析句子是一个表语从句，就不能because来做引导词，因为because一般连接的是表原因的状语从句，故可以排除A，B选项．而在表语从句中通常是that来做引导词，更何况句中主语是the reason，联想到固定句型the reason is…that…故答案为D． 我不去法国的原因是因为我得到一个工作． 这一题考查学生对表语从句和固定句型the reason is…that…知识的考查．
5.??
表语从句中一般为陈述语序，排除B，D，再根据句意排除A，故选：C． 翻译：四川菜比上海菜更辣．那是我为什么喜欢它的原因． 首先理解句意，然后根据表语从句，宾语从句的语序为陈述语序即可选出
6.??
答案：B．because因为，why为什么，when什么时候，how 怎样，结合上下文句意可知因为高峰期难开车，就是为什么人宁愿骑骑自行车，故用连接副词why引导的表语从句，与is构成系表结构． -我们常常发现在高峰期很难开车． -那是为什么在我们城市许多人宁愿骑自行车． 连接副词主要有when，where，why，how，whenever，wherever，however等． He didn't tell me when we would meet again．他没告诉我什么时候我们再相见． Could you please show me how you read the new panel？ 你能否给我展示一下你如何辨认这个新的操作盘？ None of us knows where these new accessories can be bought．我们中没人知道这些零件在哪里可以买到．
7.??
句意：——看那个绿色头发的男孩。真酷！——但是我认为学生不应该染头发。must必须，一定；should应该。students作从句中的主语，所以students和allow之间是被动关系，情态动词的被动语态构成：情态动词+be+动词的过去分词。所以先排除C项（主动语态）；在主从复合句中，当主句的主语是第一人称I或We，并且谓语动词为think，believe，guess，suppose等表示心理活动的动词时，变否定句时要将从句的否定词转移到主句中，即主句的谓语动词用否定式，而从句的谓语动词用肯定式。所以此空为从句中谓语动词的肯定形式，又排除A项和D项，故选B。
8.??
试题分析：句意：尽管他非常累，他继续在他的办公室工作。A. Since 自从； B.Although 尽管；?? C. As soon as?一......就......；D. Because因为。此处tired“累”与continued working“继续工作”之间表示转折关系，故用连词Although。故选B。 考点：考查连词的用法。
9.??
试题分析：句意：——你能告诉我在中国人们什么时候吃元宵吗？——经常在元宵节。A. when do people eat 人们什么时候吃。 B. how do people eat 人们如何吃；? C. when people eat?人们什么时候吃。?? D. how people ear人们如何吃；根据Usually at Lantern Festival.可知此处是对时间提问，故排除BD两项。因为作为动词tell的宾语从句，故词序为：疑问词+主语+谓语。故选C。 考点：考查宾语从句的用法。
10.??
试题分析：句意：因为雨下得很大，所以我们决定待在家里看电视。A. but?但是；B. or 或者； C. because 因为； D. so所以。结合句意， It was raining heavily是原因，we decided to stay at home and watch TV.是结果，故此处用连词so，引导结果状语。故选D。 考点：考查连词的用法。
11.??
试题分析：句意：——大卫，你能告诉我世界杯多久举行一次？——每四年一次。A. when the 2014 World Cup will finish 2014年的世界杯将什么时候结束。B. how often the World Cup takes place世界杯多久举行一次C. how many teams take part in the World Cup多少个团队参加世界杯。D. who may score the most goals in the World Cup谁可能在世界杯中进球最多。根据Every four years.可知此处是对频率提问的，故选B。 考点：考查宾语从句。
12.??
试题分析：句意：—你能告诉我青年奥林匹克运动会会在哪里举行吗？—2014年8月。宾语从句的语序应该是陈述语序。排除A、B。根据回答可知问的是时间，所以用疑问词when。where问地点。故选D。 考点：考查宾语从句的用法。
13.??
句意：我们负担不起犯错的后果。对我们来讲，失之毫厘，差之千里。A.?a?miss?is?as?good?as?a?mile失之毫厘，差之千里；B.?the?grass?is?greener?on?the?other?side邻家芳草绿，隔岸风景好；C.?it?never?rains?but?it?pours祸不单行；D.?when?in?Rome,?do?as?the?Romans?do入乡随俗。承担不起犯错的后果，因为失之毫厘，差之千里。故选A。 【考点定位】?考查英语谚语。 ?
14.??
句意：―我不相信你完成工作了。―我朋友帮助我的。正如谚语所说“人多力量大”?A.?Practice?makes?perfect熟能生巧；B.?Put?all?your?eggs?in?one?basket孤注一掷；C.?Burn?the?candle?at?both?ends劳累过度；D.?Many?hands?make?light?work众人拾柴火焰高。在朋友帮助下完成了任务，人多力量大。故选D。 【考点定位】?考查英语谚语。 ?
15.??
句意：考试完，我们就要和我们亲爱的老师、同学还有我们美丽的学校说再见了。A.In“在……里面”；B.For“为，给”；C.After“在……之后”；D.Through“通过”。结合语境，后文将要说道别，故选C。考点：考查介词的辨析。
16.??
句意:丝绸之路是如此长以至于它经过了许多国家。本题考查副词。so...that...如此……以至于……,故答案为D项。
17.??
句意：你能告诉我高铁什么时候到达吗？宾语从句的语序要用陈述语序，此题主句是一般现在时态，所以从句可根据需要选择时态，根据答语(半小时之后)所以用将来时态，故选B。
18.??
句意：早点起床，否则你将上学迟到。A.so 所以，表示前后是因果关系； B.and 并且，表示前后是并列关系； C.or否则，表示前后是选择关系； D.but但是，表示前后是转折关系。这里是祈使句+or+陈述句，相当于if+从句，主句。结合句意，故选C。
19.??
根据Teachers ask me to finish the homework on time.可知，me是ask的宾语，finish the homework与me是逻辑上主谓关系，是me去完成家庭作业，finish the homework是对宾语的补充说明，是宾语补足语，故选C。
20.??
: 句意：---它是什么颜色？---它是蓝色。因为问的是它是什么颜色，直接回答颜色即可，故选B。 考点：考查情景交际。
21.??
句意：在我们学校里的商店从上午8点到下午5点是开着的。open，在这里作形容词，意思是“开着的”，在系动词后面作表语。故选D。
22.??
hope后面不能接双宾语，通常用法是hope to do sth .希望做某事；hope+宾语从句(时态常常是will+动词原形)希望······做某事。结合语境可知选D。 考点：考查动词
23.??
hope后面不能接双宾语，通常用法是hope to do sth .希望做某事；hope+宾语从句(时态常常是will+动词原形)希望······做某事。结合语境可知选D。 考点：考查动词
24.??
so表示因果关系；if的意思是“是否，如果”；or表示选择关系；but表示转折关系。根据句意“Ben正在忙着上训练课”和“我们不得不等他半个小时”可知，两者之间存在因果关系。故选A。
25.??
句意：---我不喜欢牛排和鱼。你呢?---我不喜欢牛排，但是我非常喜欢鱼。在并列句中表并列关系时，and用于肯定句，or用于否定句，故第一个空用or；答句中前半句是否定的，后半句是肯定的，可判断是转折关系，故第二个空用but。根据句意，结合语境和所给的选项，可知or；but符合。故选D。
26.??
句意：虽然这位服务员不知道这位老妇人说了什么，但是他知道她想要什么。Unless除非；Because of因为(后接短语)；Even though虽然；Because因为(接从句)。依据题意，故选C。
27.??
句意：——请把地图给我。我在想钓鱼岛在哪。——看，他们在这，在中国东面，台湾省附近。宾语从句应采用陈述语序。根据题意，故选B。
28.??
句意：不管你是谁，你都应该遵守学校的规章制度。首先谁要用who引导。此题考查状语从句，从句中应该用陈述句的语序，即who you are。故选D。
29.??
句意：林丹是如此的著名以至于中国所有的羽毛球迷都知道他。so…that引导的结果状语从句，表示如此……以至于。故选D。
30.??
句意：他不是一个完美的孩子。当他的父母和他说话时，他有时会顶嘴。A. if 如果，引导条件状语从句； B. before 在......之前，引导时间状语从句； C. when当......时候，引导时间状语从句； D. until直到，引导时间状语从句；此处表示在和父母谈话时，他会顶嘴，故用连词when，故选C。
31.??
句意：我感到很伤心是因为我最喜欢的朋友要转到另一所学校学习了。though尽管；because因为；so因此，所以；but但是。故选B。
32.??
句意：--你学习如此的努力以至于你肯定能通过考试。--谢谢你。enough...to“足够做……”，to后跟原形；as...as...“和……一样”；so...that...“如此……以至……”，that后跟句子；too...to太......而不能......，to后跟动词不定式。结合句意，故选C。
33.??
句意：当晚餐结束时，每个人帮助洗餐具。How如何，表示方式，程度；When当……时候，表示时间；Before在……之前，表示时间；Why为什么，表示原因。根据everyone helped wash the dishes可知吃完饭的时候才洗餐具，故此处用连词when, 故选B。
34.??
句意：停止吸烟否则你的健康状况很快就会变得更差。A并且，B否则，C但是D所以。根据句意，故选B。
35.??
句意：在家吃早餐是健康美味的，但是我必须在上学的路上吃，因为我不能早早起床。A. and和，又，而；B. but但是；C. so所以；D. or或者。表示转折用but。结合句意，故选B
36.??
句意：仔细参加考试，否则你不会得满分的。此题考查连词，A因此；B并且；C否则。根据句意，应选C。
37.??
句意：----我担心即将到来的考试，---你应该为考试努力学习，要不然你还得再考一次。A.and 表示并列关系? B.or 表示否则要不然，? C.but 但是，表示转折? D.however然而，表示转折,结合语境可知选B。
38.??
本题时表示结果的状语从句，前面一句是说明理由“我很忙”，才产生后面的结果“不能参加晚会”。答案是A。
39.??
句意：直到我表弟昨晚看了著名的电影《灰姑娘》才了解了一些关于它的事情。A. If如果；B. When当……时候；C. unless 除非； D. Until直到，根据句意此空是“直到”的意思，所以选D。
40.??
句意：当晚餐结束时，每个人帮助洗餐具。How如何，表示方式，程度；When当……时候，表示时间；Before在……之前，表示时间；Why为什么，表示原因。根据everyone helped wash the dishes可知吃完饭的时候才洗餐具，故此处用连词when, 故选B。
41.??
句意：过了桥，你将看见大象。根据连词and的用法，它连接的前后是并列的成分，and后是句子，所以and前也应该是句子，故这里应该用动词。Across??? 是介词；横穿；CD是非谓语动词。故选B。
42.??
句意：---明天你打算去爬山吗？---是的，但是如果下雨我将待在家里。if引导的条件状语从句用一般现在时，主句用一般将来时。故选C。
43.??
当not only…but(also)…连接两个分句时，若将not only置于句首，前句采用部分倒装语序，后句用正常语序。
44.??
句意：——今年春节你打算干什么？——如果武汉冷，我就和我的家人去南方。在含有条件状语从句的主从复合句中，要遵循“主将从现”原则，如果主句用一般将来时，条件状语从句要用一般现在时。故选B。
45.??
句意：如果她真地努力，她将会取得好成绩。这是一个主从复合句，主句使用一般将来时，if后面的条件状语从句要用一般现在时，she后面的谓语动词要用单数第三人称形式，故选B。
46.??
句意：下面那一项是错误的。A.The computer doesn’t work. 电脑不工作了；B. There’s something wrong with my computer. 电脑有毛病了；C. The computer has something wrong. 这里不能用这种表达方式；D. Something is wrong with my computer.这里是句式Something is wrong with sth某物有毛病了。故选C。
47.??
句意为：公众要求马来西亚政府分享他们知道的有关MH370航班的信息。在宾语从句中，从句应用陈述句的语序。根据语境可知应选A，what作know about的宾语。 考点：考查宾语从句的语序。
48.??
would rather do sth.为省略to的不定式，固定结构，宁愿，宁可做某事的意思，故选C。
49.??
句意：一个真正的朋友能看到你眼里的痛苦而其他的每个人只相信你脸上的微笑。A.because因为；B.while在......时候或而；C.在......之前；D.until直到......才。故选B。
50.??
句意：——早上你几点去上学？——在七点半。what什么；what time几点；how如何；where哪里；根据At 7:30.可知此处问的是几点，故选B。 考点：考查疑问句的用法。