精英家教網 > 初中英語 > 題目詳情
-- Excuse me, sir, smoking          in the gas station.
-- Oh, I'm really sorry.
A. doesn't allow                B. isn't allowed             C. aren't allowed
B
句意：打擾了先生，在加油站是不允許吸煙的。結合語境可知本句主語是被允許的對象，故用被動語態，smoking表示抽象含義，故謂語動詞用單數。被動語態一般由be動詞加動詞的過去分詞構成，故選B。
點評：此類題型主要是確定句子主語與謂語動詞的關系。如果是主動關系則用主動語態，反之如果是動賓關系，則用被動語態。注意一些接不帶to的不定式做賓語補足語的動詞用作被動語態時，不定式符號to要加上。
練習冊系列答案
相關習題

科目：初中英語 來源：不詳 題型：單選題

–Lots of trees and flowers ________ on both sides of the road last year.
--Oh, _______ beautiful they are!
A．have been planted; howB．were planted; what
C．were planted; howD．have been planted; what

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

Fifteen-year-olds ________ to have jobs in China.
A．is not allowedB．are allowed C．is allowedD．are not allowed

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

Many flowers ________ in our school last year，and they made our school a beautiful garden．
A．plantB．plantedC．have plantedD．were planted

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

Young trees____ quite often.
A．should waterB．should be waterC．should be wateredD．watered

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

He was often seen _________ with charity work last year.
A．to helpB．helpedC．helpingD．help

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

These English songs are very popular and they often____ on the radio all the time.
A．playB．playedC．are playedD．were played

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

—Our school _________ in 1876. 
—Wow, it has a very long history.
A．builtB．was builtC．is builtD．has built

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題

—Professor Wang ______ to give us a talk next week.
—Really? That’s good news.
A．will inviteB．is going to inviteC．will be invitedD．has invited

查看答案和解析>>

同步練習冊答案
久久精品免费一区二区视