【題目】根據(jù)語境從括號內(nèi)選擇正確的情態(tài)動詞填空。

1Put on more clothes. You _____(must / can't) be feeling cold with only a shirt on.

2There are some grey clouds in the sky. It _____(may not / might) rain later.

3Everyone is leaving the office. It _____(couldn't / must) be the end of the day.

4The lights in their apartment are all off. They're not answering the phone. They _____(must / can't) be at home.

5James _____(may not / can't) come to the party. He said he wasn't certain what his plans were.

6I thought I heard a knock on the door. It _____(must / could) be my little brother. He usually comes home around now. Or it _____(might / must) be my mother. It _____(can't / might not) be my father. He never knocks.

7Where have I put my keys? They _____(can't / must) have walked away. They _____(must / may) be near the sink (洗臉盆), since I washed my hands when I came in from the garden. Or they _____(could / must) be in the pocket of my gardening pants.

【答案】

1must

2might

3must

4can't

5may not

6could might can't

7can't may could

【解析】

1句意:多穿點衣服。只穿一件襯衫你一定會感覺很冷。must一定,準是,表示推測,只用于肯定句中;can’t不可能,表示否定的推測。根據(jù)句意Put on more clothes可知,這里應表示肯定的意思,故填must。

2句意:天空中有一些灰色的云,一會兒可能會下雨。may not可能不;might可能。兩個詞都可以表示推測,語氣比較弱。根據(jù)句意There are some grey clouds in the sky可知,這里應該是肯定的推測,故填might。

3句意:大家都在離開辦公室,這一天一定是結(jié)束了。couldn’t不可能;must一定,表示推測,用于肯定句中。根據(jù)句意Everyone is leaving the office可知,大家都在離開,說明下班了,故這里是肯定的推測,填must。

4句意:他們公寓里的等都滅了,他們沒有接電話,他們一定沒有在家。can’t不可能,一定不;must一定,肯定。根據(jù)句意The lights in their apartment are all off. They're not answering the phone可知,這里表示否定的推測,故應填can’t。

5句意:James可能不來參加聚會,他說他不確定他的計劃。may not可能不,語氣較弱;can’t不可能,語氣非常強。根據(jù)句意He said he wasn't certain what his plans were.可知,這里表示的推測語氣較弱,故應填may not。

6句意:我想我聽到了敲門聲,可能是我的弟弟,他通常這個時候回家;蛘呖赡苁俏业膵寢,不可能是我的爸爸,他從不敲門。第一個空must肯定;could可能。根據(jù)句意可知,這里沒有十足的把握說一定是,故應填could;第二個空用might也表示語氣弱,“可能”;第三個空用can’t表示“不可能”,語氣較強,因為后面說了He never knocks,他的爸爸從來不敲門,所以一定不是他。

7句意:我把鑰匙放在哪兒了?他們不可能走開了。他們可能在洗臉盆附近,因為我從花園進來的時候洗手了;蛘咚麄兛赡茉谖覉@藝褲的口袋里。根據(jù)句意可知,鑰匙不會走路,故第一個空表示非?隙ǖ耐茰y,應填can’t不可能;第二個空和第三個空都表示猜測,沒有確切的依據(jù),只是有可能,故第二個空填may“可能”;第三個空填could,也表示“可能”;must是一定,語氣非常肯定,不符合句意。

這個題目主要考查了情態(tài)動詞表示推測的用法。must一定,肯定,準是,表示非常有把握的推測,只能用于肯定句中;can’t不可能,一定不,語氣較強,用于否定句中;may, might或者could都表示“可能”,語氣較弱,肯定句或者否定句都可以。例如第4小題,根據(jù)句意The lights in their apartment are all off. They're not answering the phone可知,這里列出了兩個理由,所以對推測的事情很有把握,且表示否定的,故應填can’t。再如第7小題,根據(jù)句意可知,鑰匙不會走路,故第一個空表示非?隙ǖ耐茰y,應填can’t不可能;第二個空和第三個空都表示猜測,沒有確切的依據(jù),只是有可能,故第二個空填may“可能”;第三個空填could,也表示“可能”;must是一定,語氣非?隙ǎ环暇湟。

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