What shall human beings do if oil        sometime in the future?
A.will run outB.runs out of C.runs outD.will be run out
C

試題分析:考查時態(tài)。在條件狀語從句中用一般現(xiàn)在時代替將來時。固定詞組run out用完,耗盡;該短語沒有被動語態(tài);run out of sth用完某物;該短語有被動語態(tài)的形式。句意:如果未來石油用完了,我們?nèi)祟悤檬裁茨兀抗蔆正確。
點評:時態(tài)題的考查關(guān)鍵是抓住句子的上下文含義和句中的時間狀語。要根據(jù)時間狀語來選擇合適的時態(tài),在平時的學(xué)習(xí)中要注意積累有關(guān)時態(tài)的用法和各種時態(tài)的特殊之處。如since, so far等經(jīng)常與現(xiàn)在完成時連用。在條件狀語從句中用一般現(xiàn)在時代替將來時等等。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源:不詳 題型:單選題

--Remember the first time we met?
---Sure. You _____ in the supermarket.
A.shoppedB.have shoppedC.had shoppedD.were shopping

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

A scientific report has found that snow and ice on Africa’s highest mountain Kilimanjaro ______rapidly and could vanish within 20 years.   
A.has been meltedB.will melt
C.is meltingD.was being melted

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

It is said that a new robot _______by him in a few days.
A.will be designedB.has been designed
C.designedD.will have been designed

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

My sister has never played tennis before. This is the first time she __________ to play.
A.is tryingB.was tryingC.has triedD.had tried

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

The new play ______ next week.。
A.put onB.was put onC.will put onD.will be put on

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

I       Beijing in a few days. Do you know when the earliest plant      ?
A.leaves for; takes offB.a(chǎn)m leaving for;is taking off
C.a(chǎn)m leaving for; takes offD.leave for; taking off

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

I called him many times, but I didn’t get through, maybe his mum _   on the phone all the time.
A.talkedB.was talkingC.has talkedD.had talked

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

---- I hear that Jason is planning to buy a car.
---- I know. By next month, he _     enough for a used one.
A.will have savedB.will be savingC.has savedD.saves

查看答案和解析>>

同步練習(xí)冊答案