“What makes you think so ? ”the father asked .
“If not , ”said the little boy , “why doesn\'t each of them buy one for himself ? ”
【 思维体操 】
请同学们开动脑筋解答下列问题
1 . Terry is older than Mark and Sam is younger than Terry . Which of the fol
lowing statements is most accurate ?
( a ) Sam is older than Mark .
( b ) Sam is younger than Mark .
( c ) Sam is as old as Mark .
( d ) It is impossible to tell whether Sam or Mark is older .
2 . Which of the five makes the best comparison ?
Leap is to peal as 8326 is to :
2368 6283 2683 6382 3628
( a ) ( b ) ( c ) ( d ) ( e )
3 . Anne received o . 59 change from a supermarket purchase ( 购买物 ) Of the eleven coins she received in change , three were exactly alike . These three coins had to be :
PENNIES NLCKELS DIMES QUARTERS HALF DOLLARS
( a ) ( b ) ( c ) ( d ) ( e )
( dime 1角硬币，nickel l5分镍币，pennies 1分硬币 )
答案： 1 . D Without more information it is impossible to tell . We only know that both Mark and Sam are younger than Terry .
2 . D Substitute numbers for letters : L = 8 , E = 3 , A = 2 , P =6 . Peal =
6328 .
3 . B Four dimes , three nickels , and four pennies is the only solution .
三、智能显示
【 心中有数 】
单元语法发散思维
一般过去时被动语态：
构成：主语 + was ( were ) + 及物动词的过去分词。
陈述句 ( Statements ) : The letter was written a week ago . 这封信是一星期前写的。
疑问句 ( Questions ) : Was the letter written a week ago ? / When was the letter written ? 例句：
The museum was built two years ago . 这个博物馆是两年前建成的。
Was the thief caught by a policeman ? 这个小偷是被警察抓住的吗 ?
Where were the children found ? 孩子们是在哪被发现的 ?
When was the watch bought ? 这块手表是什么时候买的 ?
The thermos were used for keeping water hot . 这些暖水瓶是用于保存热水的。
主动语态变被动语态的四个步骤：
①把主动语态句子中的宾语变成被动语态句子的主动。
②把主动语态句子中的谓语变成被动语态：be + 动词的过去分词。注意被动语态中 be 的时态与主动语态句子中的谓语动词的时态相同。
③把主动语态中的主语变为 by 的宾语 ( 如为代词，主格形式变成宾语形式 ) 。如果动作执行者不需要强调或说明，by 短语可以省略。
Everybody likes Tom . 大家都喜欢汤姆。
Tom is liked by everybody . 汤姆被大家喜欢。
He wrote a letter . 他写了一封信。
A letter was written by him . 这信是他写的。
They are building a road . 他们正在修一条路。
A rood is being built ( by them ) . 那条路在修建中。
含有两个宾语的主动结构变为被动结构
主语结构中若有两上宾语 ( 直接宾语和间接宾语 ) ，通常将表示人的间接宾语变为被动态主语，而直接宾语 ( 表示物的 ) 作为保留宾语而不动。有时也可将直接宾语变为被动语态主语，间接宾语作为保留宾语而不动，但其前通常要加介词 to 或 for。如：
He gave me some books . 他给了我一些书。 ( 主动语态 )
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