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It’s necessary us English well.

A．for , to learn B．for , learning

C．of , learning D．of , to learn

【答案】

【解析】

試題分析:強調句式， It is adj for sb to do sth，做某事對某人來說怎么樣。本句中it是形式主語，指代后面不定式內容做形式主語，注意for后面接表示人的對象,to后面接動詞,故選A。

考點：固定句式

點評：固定句式的考查也是英語考查的一個重點，熟記這些句式可以減少答題中的分析判斷時間，所以平時加強句式記憶也是學好英語的關鍵環節。

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相關習題

科目：初中英語 來源：北京模擬題 題型：閱讀理解

閱讀理解。

     Baseball is America's national sport. So it is not unusual that many popular expressions come from baseball.
But first, let me explain a little about the game.
     Each baseball team has nine players. The pitcher of one team throws the ball to a batter from the other team.
The batter attempts to hit the ball. If he misses, it is called a strike. If a batter gets three strikes, he loses his
turn at bat and is called out. The batter also is out if he hits the ball in the air and an opposing player catches it.
But if the batter hits the ball and it is not caught, the batter tries to run to one or more of the four bases on the
field. The batter can run to all four bases if he hits the ball over the fence or out of the ballpark. Such a hit is
called a homerun.
     Now, here are some common expressions from baseball. Someone who is "on the ball" is intelligent and able
to do a good job. But a person who "threw a curve ball" did something unexpected. Someone who "steps up to
the plate" is ready to do his or her job. A "pinch hitter" takes the place of someone else at a job or activity.
     Sometimes I have to give information quickly, without time to think it over. Then I would say something
"right off the bat". If someone is doing an extremely good job and is very successful,you might say he or she is
"batting one thousand."
    If I say I want to "touch base" with you, I will talk to you from time to time about something we plan to do.
I might say I "touched all the bases" if I did what is necessa- ry to complete a job or activity. And if I "covered
my bases" I was well prepared. However,someone who is "way off base" did something wrong or maybe even
dishonest or immoral. A person with strange ideas might be described as "out in left field".
     Finally, when a situation changes completely, we say "that is a whole new ballgame."

1. The writer's purpose is _____.

A. to explain the rules of a sport game-baseball
B. to tell you more about America's national sports
C. to introduce some useful expressions from baseball
D. to show the connection between expressions and sports

2. The underlined sentence "The batter also is out" means _____.

A. the batter will run to one of the four bases
B. the batter will not continue the game
C. the match will be over immediately
D. the batter will change his position

3. Which of the following expressions means that someone is able to do a good job?

A. To be on the ball.
B. To step up the plate.
C. To throw a curve ball.
D. To touch all the bases.

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