博文谷

初三高頻考點解讀(Unit 12)

作者:杜倩

【考點一】 根據漢語意思完成句子

電視機一定是出毛病了。

There________ ________something wrong with the TV.

【思路解析】答案是must be,表示推測,意思是"準是;一定是"。

【知識拓展】 注意must be在句子中的幾種用法。

(1)用於被動語態中,即"must be + 過去分詞"。如:

This must be done as soon as possible.這件事必須儘快做。

(2)must be表示肯定的推測,意爲"一定是",否定的推測用cannot。例如:

I guess your father must be a computer engineer. 我猜你父親一定是個計算機工程師。

He cannot be at home at the moment. 他現在準不在家。

【考點二】改寫同義句。

Until now no man has travelled farther than the moon.

No man has travelled farther than the moon so________.

【思路解析】 根據上下文意思,本題應填far。so far意爲"到目前爲止"。此外until now,by now也可表示此意。

【知識拓展】 so far常與現在完成時連用。如:

So far, he has been teaching himself French all the time. 直到現在,他一直在自學法語。

so far在句子中可以直接用until (by) now替換。如:

By now (So far) they haven't seen each other. 直到目前爲止,他們彼此還沒見過面。

【考點三】 Man-made satellites have been________into space by many countries.

A. set up B. sent up C. sent off D. sent for

【思路解析】選B。區別詞組含義:set up"搭起;建立";send up"發射;發出";send off = see off"送行";send for"派人去請"。

【知識拓展】 send的含義有"寄;傳"或"派(人)去......"。如:

The children were sent to bed. 孩子們被打發去睡覺了。

I'll send my son to you with my message. 我會讓我的兒子帶口信給你。

send與不同的詞搭配,有不同的含義。如send away from(遣送;打發......離開);send up(發射); send for(派人去請......);send off(爲......送行)。如:

Tom is ill. We'd better send for a doctor. 湯姆病了,我們最好派人去請醫生來。

Why did Edison's teacher send him away from school? 愛迪生的老師爲什麼把他趕出學校

People have sent up several spaceships this year. 今年人們已經發射了幾艘宇宙飛船。

Many of his friends went to the station to send him off. 他的許多朋友都去車站爲他送行。