【題目】The rivers will become dirtier and dirtier we take action to protect them.

A. since B. if C. whether D. unless

【答案】D

【解析】

試題分析：句意：如果我們不采取措施保護(hù)它們，這些河流會(huì)越來(lái)越臟。since由于，自從……以來(lái)；if 是否，如果；until直到；unless除非，如果不。結(jié)合語(yǔ)境和句意可知選D。

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】The two girls always have a good time _________ the piano together.

A. practice to play B. practicing playing

C. to practice playing D. to practice to play

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】Please call me______4572354.

A. in B. at C. about D. with

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】It takes Lisa two hours _______ every day.

A. practise to draw B. practise drawing

C. to practise to draw D. to practise drawing

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】Who will spend the weekend in the country?
A.Bob.
B.Jack.
C.Judy.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】What was Bill doing when it began to rain?
A.He was driving.
B.He was buying a book.
C.He was doing his homework.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】選出句子中所包含的信息（ ）
A.People were angry with the players.
B.People were happy to join the players.
C.People were excited to see the players.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】 —There are so many interesting books in the library!

— Yeah, but I can’t decide ________.

A. to borrow what B. what to borrow

C. to borrow which D. which to borrow

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：

【題目】.----I’d like a cup of black coffee. What about you, Maggie?

--- I prefer coffee______ sugar.

A. than B. for C. with D. to

查看答案和解析>>

同步練習(xí)冊(cè)答案