【題目】He seldom stays up late at night, ______ necessary, to keep himself full of energy the next day.

A. if B. unless C. until D. while

【答案】B

【解析】句意：除非必要，否則他很少熬夜，以便第二天保持充沛的精力�？疾檫B詞辨析題。if如果，表條件；B. unless除非，表條件；C. until直到……才，表時間；D. while當(dāng)……的時候，表時間。本句表條件，根據(jù)句意語境，可知if不合句意，故選B。

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：初中英語 來源： 題型：

【題目】—Would you mind my opening the door?

— _____. It’s so hot in the classroom.

A. Certainly B. Of course not C. Better not

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】---Where is your father?

---He is helping David ______ a shelf above the bed.

A. put in B. put on C. put up D. put out

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】“One Belt, One Road” (一帶一路) will serve to __ markets for China as well as other countries.

A. put up B. open up C. take up D. look up

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】Lin Tao is ________ years old and tomorrow is his ________ birthday.

A.twelve; twelveB.twelfth; twelfthC.twelve; twelfthD.twelfth; twelve

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】—Will you fix up the broken robot according to the , Tommy?

—No problem.

A. invention B. information C. instruction D. introduction

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】Who does Jack usually take a walk with?

A.His mother.B.His sister.C.His father.

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】聽下面的獨白，回答下列各小題。

【1】When does the boy clean his bedroom?

A.At 8:00.B.At 9:00.C.At 11:30.

【2】What does the boy think of his homework?

A.Difficult.B.Interesting.C.Easy.

【3】What don’t the boy and Andrew do?

A.Listen to music.B.Play chess.C.Watch TV.

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】—Hi, Nora. Is your mother at home?

—Just a minute! She _______ flowers in the garden.

A. plant B. is planting C. planted D. was planting

查看答案和解析>>

同步練習(xí)冊答案