【題目】There's no snake that will habitually(習(xí)慣性地)attack humans__________ it is in danger.

A.unlessB.ifC.thoughD.since

【答案】A

【解析】

句意:沒有蛇會習(xí)慣性地攻擊人類,除非它處于險境。

考查連詞。A. unless除非;B. if如果;C. though雖然;D. since因?yàn)、既然。由于前半句句意是否定的,所以后半句?yīng)是否定意義的連詞引導(dǎo),整個句意才通順,故選A。

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】The sun ________ behind a cloud. Maybe it’s going to rain. (appear)

查看答案和解析>>

科目:初中英語 來源: 題型:

【題目】Since he had no tools, he had to put the picture _______ the wall before he could put it up.

A.onB.inC.againstD.over

查看答案和解析>>

科目:初中英語 來源: 題型:

【題目】_______ (keep) themselves awake, the twins sat on the floor and told each other stories.

查看答案和解析>>

科目:初中英語 來源: 題型:

【題目】Yesterday, I _______ (take) the underground when I suddenly found I was on the wrong side.

查看答案和解析>>

科目:初中英語 來源: 題型:

【題目】—Your tennis coach looks so young and beautiful!

—__________,she has two children.

A.To be exactB.I can't agreeC.To be honestD.Believe it or not

查看答案和解析>>

科目:初中英語 來源: 題型:

【題目】What ____________ (要緊) most is good health.

查看答案和解析>>

科目:初中英語 來源: 題型:

【題目】—Three months ___________quite a long time.

—Yes, I'm afraid that he will miss lots of his lessons.

A.areB.wasC.isD.were

查看答案和解析>>

科目:初中英語 來源: 題型:

【題目】—______do you usually have dinner?

—At about 6 p.m.

A.WhenB.WhereC.WhyD.How

查看答案和解析>>

同步練習(xí)冊答案