---Who was calling you on the phone just now？

---_______.

That's him

It was Tom

This was someone

Maybe Jim's

考查强调句。句意---刚才谁在电话里面叫你？---他是汤姆。根据题意，答句为强调句。完整形式为it was Tom that call you on the phone just now.缩写形式为It was Tom，故选B。

According to Professor Johnson, we don't have to read the book if we don't want to, as it is              .

worthwhile

necessary

optional

serious

考查形容词词义辨析。句意：根据约翰逊教授的说法，如果我们不想读这本书，就不必读，因为它是可选择的。A. worthwhile值得的； B. necessary 必要的；C. optional 可选择的；D. serious 严肃的，认真的。根据“  we don't have to read the book if we don't want to”可知，这本书读不读都可以，由此可知它是“可选择的”。故选C项。

We cannot           the punctual arrival of trains in foggy weather.

get

help

guarantee

guess

考察动词词义辨析。句意：我们不能保证火车在雾天准时到达。A. get得到，获得；B. help 帮助；C. guarantee保证；D. guess猜测。根据句意可知，火车无法保证按时到达。故选C项。

---Where is Class       ?

---It’s on the       floor.

Six; third

Sixth; third

Six; three

Sixth; three

考查数词辨析。句意：----六班在哪里？---在三楼。英语中表达序号时，如果用基数词表示：名词+基数词，如六班，Class Six;如果用序数词表示：the+序数词+名词，如三楼，即the third floor。故选A项。

While we may not be born with a nature talent, we can          for it with hard work.

break up

take up

bring up

make up

考查动词短语辨析。句意：虽然我们可能没有与生俱来的天赋，但我们可以通过努力工作来弥补。A. break up打碎；B.take up 拿起，开始从事；C.bring up提出；D. make up 弥补。根据上文we may not be born with a nature talent可知没有与生俱来的天赋，所以要通过努力工作来弥补。故选D项。