英语周报高一2018-2022人教版答案

d22.(1)2L2(1分)(2)B(2分)2kI(3)平衡摩擦力不够或者是没有平衡摩擦力(1分)dm。(2分)解析:(1)由题意分析可知:小车做初速度为0的匀加速d直线运动,在最初一段位移L内的末速度v=-,设小车的加速度为a,则2aL=32,可得:a=21L2d(2)由(1)问可得,加速度a与的关系为a=2L,所以物体加速度与的关系成正比,又因为需要平衡摩擦力,故B项正确(3)平衡摩擦力不够或者是没有平衡摩擦力,由图象可得dF=(M+o?+b,故(M+m0)L=k,所以M=2kLn1。

Passage 4One rainy night I was driven along a lonely highway. Ahead of me, I saw a man walkingarivingrapid along the sides of the road It was pouring rain and i slowed down to avoidsplassh him asrapidlySIdeplashingI went by. He misunderstood, but I left quickly for fear. Suddenly all fear was been gone and Iwithbacked up and unlocked my car door. His truck had got stuck in the mud. She had been walkingHfor miles. No one would pick him up and his wife is in the hospital in labor with their first childwasHe had cried at the thought that he might A be there We arrived at the hospital moments beforenotnis son was bornl. driven改为 driving考查非谓语动词。句中说的是自己在开车,而非被驱赶,所以用主动形2 rapid改为 rapidly考查副词。walk是实义动词,需用副词修饰。3.ides改为side考查名词。这个人不可能同时沿着路的两边走,所以需用单数形式。4 splash改为 splashing考查动词用法。 avoid后接动词时需用v-ing形式5but改为so考查连词。上下句是因果关系,故应用连词soo6for改为with考查介词。 with fear意思是“因为害怕”,with在此表原因。7.ben去掉考查动词语态。 was gone是系表结构,此处表主动,ben多余。8.She改为He考查代词。由上文提及的aman可知是位男性,作主语需用he替代,首字母要大写。9is改为was考查时态。本文讲述发生在过去的事情,需用一般过去时。10. might与be之间加not考查行文逻辑。这名男子哭泣是因为想到孩子要出生自己却可能去不了,加上not后符合语境。

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