Tom wanted to play football with his friends in the street，but his father told him ________.

not to

not to do

not do it

do not to

考查動(dòng)詞不定式的省略。完整的形式應(yīng)該是…，but his father told him not to play football with his friends in the street.為避免重復(fù)，常省去不定式動(dòng)詞，保留不定式符號(hào)to，故選A。

Tom looks so pale today. He ______ ill.

must be

had to be

should be

shall be

[翻譯]湯姆看起來(lái)臉色不好，他一定生病了。[解析] A 試題解析：情態(tài)動(dòng)詞must表示推測(cè)。題目中表示肯定的推測(cè)。

          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，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)。

There's no simple solution          this problem.

of

for

to 

about

考查介詞。句意：這個(gè)問(wèn)題沒(méi)有什么簡(jiǎn)單的解決方法。此處是短語(yǔ)“

the solution to....的解決方法”，應(yīng)用介詞to。故選C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。

I drink a cup of coffee           ; but usually I take tea.

frequently

often

constantly

occasionally

考查副詞詞義辨析。句意：我偶爾喝一杯咖啡，但我通常喝茶。A. frequently頻繁地；B.often經(jīng)常地；C.constantly連續(xù)不斷地；D.occasionally偶爾地。but 表轉(zhuǎn)折關(guān)系；根據(jù)后半句的usually,前面用occasionally,與usually意思相對(duì)。故選D項(xiàng)。

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)他們健康造成了很嚴(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