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7.汽車以v=3t+2 (單位:m/s)作變速直線運動時,在第1 s至第2 s間的1 s內(nèi)經(jīng)過的路程是      m.

答案  6.5

試題詳情

6.函數(shù)F(x)=t(t-4)dt在[-1,5]上的最大值為      ,最小值為       .

答案  0  -

試題詳情

5.一物體在變力F(x)=5-x2(力單位:N,位移單位:m)作用下,沿與F(x)成30°方向作直線運動,則由x=1運動到x=2時F(x)做的功為     J.

答案 

試題詳情

4.一物體在力F(x)= (單位:N)的作用下沿與力F相同的方向,從x=0處運動到x=4(單位:m)處,則力F(x)做的功為     J.

答案  46

試題詳情

3.設(shè)f(x)=sintdt,則f(f())=       .

答案  1-cos1

試題詳情

2.設(shè)f(x)=f(x)dx=       .

答案 

試題詳情

1.如圖所示,陰影部分面積為       .

答案  [g(x)-f(x)]dx+[f(x)-g(x)]dx

試題詳情

70. “He is a little noisy, but o_______ he is a good boy,” said the mother.

第五節(jié): 短文改錯 (每題1分,共10分)

    David joined the army when he was eighteen. And for 

several months he taught how to be a good soldier.      71_______

He did quite good in everything except shooting. One day he   72_______

and his friends are practising their shooting, and all of     73______

them did well besides David. At last the officer said, “David!   74_______

You are quite hopeless! Do not waste your bullets.      75_______

Go behind the wall, and shoot you.” David felt ashamed. He   76_______

went behind the wall and a few seconds late the officer     77_______

and the others young soldiers heard a sound of a shot     78______

“Heavens!” the officer said, “has that silly man really shooted  79______

himself?” He ran behind the wall anxious. But David was all   80______

right. “I am sorry, sir,” he said “But I missed again.

第六節(jié)  書面表達(dá)(滿分15分)

我國正提倡建設(shè)“節(jié)約型社會”,下圖為某校兩個學(xué)期用水、用電、用紙的情況。請對其進(jìn)行簡要分析,以 “How to build an economized society”為題,寫一篇作文,談?wù)勛约旱南敕ā?/p>


用  電
用  水
用  紙
上學(xué)期
80萬元
62萬元
11萬元
下學(xué)期
95萬元
73萬元
12.7萬元

文章須包括以下要點:

節(jié)電:及時關(guān)閉電燈、電腦等用電設(shè)備

節(jié)水:隨手關(guān)閉水龍頭;廢水利用

節(jié)紙:紙張再利用

補(bǔ)充:自己日常生活所感所為

注意:

詞數(shù):100-120字,短文標(biāo)題,開頭已給出,但不計入總詞數(shù)。

內(nèi)容可適當(dāng)發(fā)揮,注意行文貫通。

How to build an economized society

Our government is aiming to build an economized society. It is everybody’s duty to work hard to achieve this goal including us students.

試題詳情

69. The a________ temperature in summer here is about 22C.

試題詳情

68. Entering Grade Three, you should adjust some of your studying ________ ( 策略 ).

試題詳情


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