Benjamin Franklin was a great scientist .He was the youngest of the  46   boys in his family . He was a clever boy,   47  cleverer than his nine brothers . He studied in school for only three years . He    48  to learn new things .He  49  worked on new ideas even when he was a child . There are a lot of stories about him and here’s one of them.
One day in winter Benjamin Franklin learned from one of his   50    that something black in colour holds heat    51   than something white in colour “ Is that true ?” he asked himself . He wanted to know the answer.
It happened to be a   52  day and there was snow on the ground. He put two large pieces of cloth over the snow . One piece was black in colour and the other was white . The sun shone (照耀)
  53  the two pieces of cloth .Two hours later ,Franklin took off the cloth and found that the snow under the black cloth melted (融化) more  54  than the snow under the white cloth.
He was happy that he had learned  55   from his friend.

【小題1】

A．eihgt B．nine C．ten D．eleven

【小題2】

A．less B．more C．little D．much

【小題3】

A．started B．will like C．wanted D．liked

【小題4】

A．seldom B．a(chǎn)lways C．hardly D．never

【小題5】

A．classmates B．brothers C．friends D．teachers

【小題6】

A．slower B．wore C．better D．longer

【小題7】

A．bad B．fine C．cloudy D．rainy

【小題8】

A．beside B．in C．on D．a(chǎn)bove

【小題9】

A．easily B．quietly C．slowly D．quickly

【小題10】

A．a(chǎn)ll things B．everything C．a(chǎn)nything D．something

從一個(gè)多項(xiàng)式中減去2ab-3bc+4，由于誤認(rèn)為加上這個(gè)式子，得到2bc-2ab-1，試求正確答案

解方程　　
(1) 　　　　(2)

列方程解應(yīng)用題
種一批樹(shù)苗，如果每人種15棵，則剩下6棵沒(méi)人種，如果每人種17棵，則缺6棵樹(shù)苗，問(wèn)有多少人種樹(shù)？

已知：，互為相反數(shù)，，互為倒數(shù)，
求的值.

如圖所示，用三種大小不同的六個(gè)正方形和一個(gè)缺角的正方形拼成長(zhǎng)方形ABCD,其中，GH="2cm," GK="2cm," 設(shè)BF="x" cm,

　�。�1）用含x的代數(shù)式表示CM=_____________cm，DM=_____________cm.
　�。�2）若DC=10cm，求x的值.
　　（3）求長(zhǎng)方形ABCD的面積.

（1）填空：1—2+3—4+……+49—50=_____________；
　　　　　　　 1—2+3—4+……+99—100+101=_____________；
�。�2）計(jì)算：

若a, b之間有9個(gè)整數(shù)（不含a, b本身），則a—b的范圍是____

下面是按一定規(guī)律排列的一列數(shù)：
　　　 第1個(gè)數(shù)：；
　　　 第2個(gè)數(shù)：；
　　　 第3個(gè)數(shù)：；
　　　 ……
　　　 第個(gè)數(shù)：．
　　　 那么，在第10個(gè)數(shù)、第11個(gè)數(shù)、第12個(gè)數(shù)、第13個(gè)數(shù)中，最大的數(shù)是（ ）

A．第10個(gè)數(shù)

B．第11個(gè)數(shù)

C．第12個(gè)數(shù)

D．第13個(gè)數(shù)

　　3．已知：a為有理數(shù)，a3+a2+a+1=0，求1+a+a2+a3+…+a2012的值．
　　4．已知：，，求ab的值。
　　5．當(dāng)整數(shù)k為何值時(shí)，方程9x-3=kx+14有正整數(shù)解？并求出正整數(shù)解

-5的絕對(duì)值是                               （      ）

A．

B．5

C．

D．-5