Tom looks so pale today. He ______ ill.

must be

had to be

should be

shall be

[翻译]汤姆看起来脸色不好，他一定生病了。[解析] A 试题解析：情态动词must表示推测。题目中表示肯定的推测。

_______ by keeping down costs will Power Data hold its advantage over other companies.

Only  

Just 

 Still  

Yet

考查倒装句式。句意：只有通过降低成本，Power Data才能比其它公司更有优势。A只有；B仅仅；C仍然；D然而。Only加副词、介词短语或时间状语，放句首时，用部分倒装。故选A。

You must have had some moments when you were disappointed. If so, how           you deal with them?

will

did

can

do

考查动词的时态和语态。句意：你一定有过失望的时候。如果有，你是怎么处理的？must have done 表示对过去的事情的推测。可知时态为一般过去时。在特殊疑问句中助动词应用did。故选B项。

So difficult __________ it to work out the problem that I decided to ask Tom for advice.

 I did find 

did I find

 I have found  

have I found

句子使用的基本句式为so…that…结构。按英语语法，当该结构的so…置于句首时，其后的句子(主句)要用倒装语序，如：So loudly did he speak that even people in the next room could hear him. 他讲话声音那么大，隔壁屋里的人都听得见。

Great amounts of water            poured into the river from the factories two years ago.

was

were

has been

have been

考查时态和主谓一致。句意：两年前，工厂将大量废水排入河中。根据two years ago 可知，句子使用一般过去时。....amounts of修饰不可数名词作主语时，谓语动词用复数形式，即谓语动词与amounts保持数的一致。故选B项。

Her father         a writer.

turned

grew

has turned

has become

考查系动词的区别。句意：她的父亲变成了一位作家。Turn，grow，become用作系动词均可表示“变化”，使用时要注意：become主要指一个人暂时性的身心变化或永久性的自然变化，另外还可用于指天气变化和社会的趋势；grow主要表示逐渐变化，强度变化过程；turn后接名词，往往表示意想不到的变化，名词前通常不加冠词。故选D项。

I don’t want to be       else. I just want to be       .

anybody;myself

somebody;myself

everybody;me

anybody;me

考查代词。句意：我不想成为任何人，我只想做我自己。anybody 任何人，用在否定句和疑问句中；somebody某人，用在肯定句中；everybody每个人；由don’t可以判断此句是否定句，所以用anybody，表示任何人。第二个句子根据I为主语，可知用反身代词myself 我自己，根据句子意为我要做我自己，me是宾格，作宾语。故选A项。

It has been warned that        to the surroundings with people infected by Covid-19 without any

protection can lead to severe result.

being exposed

exposed

having exposed

to expose

考查非谓语动词。句意：有人警告称，在没有任何保护措施的情况下，暴露在有感染 Covid-19的人环境中会导致严重的结果。分析句子结构可知expose在句中应用非谓语动词形式，表示“暴露”短语为be exposed to,且从句中缺少主语，expose 与主语people是被动关系，故应用动名词的被动式作主语。故选A项。

Mary never does any reading in the evening, ______.

so does John 

John does too

John does not to

neither does John

主句用never，后面的倒装句相应的用nor或者neither，用完全倒装形式表示后者与前者情况相似。

--- So you missed the meeting.

---           .I got there five minutes before it finished.

Not at all

Not exactly

Not especially

Not really

考查情景交际用语。句意：---你错过了开会。---我在会议结束前五分钟到达会场。可以看出答话者认为对方讲话不够确切。A. Not at all一点也不；不客气；B. Not exactly不确切   C.Not especially不是特别 D.Not really不是真的。故选B项。