Though ____ the dangers of smoking to their health, smokers still find it hard to give up smoking.

aware of

are aware of

be aware of

考查狀語(yǔ)從句的省略：句意：雖然很多經(jīng)常吸煙的人已經(jīng)意識(shí)到抽煙對(duì)他們健康造成了很?chē)?yán)重的后果，但是他們?nèi)匀话l(fā)現(xiàn)很難戒煙。Though引導(dǎo)的讓步狀語(yǔ)從句是省略句，完整的句子是：though smokers are aware of the dangers of smoking to their health。當(dāng)主從句的主語(yǔ)一致的時(shí)候，可以省略從句的主語(yǔ)和be動(dòng)詞，選B

I found _____ convenient to shop online at home .

it’s 

that

it

that was

考查強(qiáng)調(diào)句。句意：我發(fā)現(xiàn)在家網(wǎng)購(gòu)很方便。這里it指代后面的to shop online。其中的強(qiáng)調(diào)句式是：主語(yǔ)+find it +形容詞+to do，意為主語(yǔ)發(fā)現(xiàn)做某事是...的，故選C。

If you see things in a negative light, you will find faults everywhere and problems where there are really          .

none

some

many 

nothing

考查代詞辨析。句意：如果你用消極的眼光看待事物，你會(huì)發(fā)現(xiàn)到處都是問(wèn)題。A. none沒(méi)有任何東西；B.some 一些；C.many 許多；D.nothing 無(wú)事；無(wú)物。此處指沒(méi)有問(wèn)題的地方也有問(wèn)題·。故選A項(xiàng)

We’ll make the final decision on our scheme. ______ you change your mind, please inform us as soon as possible.

Should

Were

Would

Had

考查虛擬語(yǔ)氣的省略。句意：我們將對(duì)我們的計(jì)劃做最后決定。如果你改變主意，請(qǐng)盡快通知我們。根據(jù)語(yǔ)境，此處用虛擬語(yǔ)氣，表示與將來(lái)相反，從句用should+動(dòng)詞原形，省略if，should提前，陳述句是：If you should change your mind……。故選A。

---Her father is very rich.

---          She wouldn't accept his help even if it were offered.

What for?

So what?

No doubt

No wonder

          no bus,we had to walk home.

There was

There being

Because there being

It being

考查獨(dú)立主格結(jié)構(gòu)。句意：沒(méi)有車(chē)，我不得不走路回家。根據(jù)句意，表示“存在”，要用there be 句型；分析句子可知，設(shè)空處應(yīng)用非謂語(yǔ)動(dòng)詞，there be只有主動(dòng)形式，故用現(xiàn)在分詞；因?yàn)榉侵^語(yǔ)動(dòng)詞有自己獨(dú)立的的主語(yǔ)no bus,所以此處是獨(dú)立主格結(jié)構(gòu)。故選B項(xiàng)。