炎德英才大联考2022届高三长郡中学答案

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2.D〖解析】根据功能关系可知机械能随位移变化的图象中,图线的斜率表示木箱受到的摩擦力。传送带逆时针匀速转动,将木箱轻放在传送带上,最初一段时间内一定受到沿传送带向下的滑动摩擦力,摩擦力做正功,机械能增大,A项错误;若木箱滑到传送带底氵端时的速度仍小于v,则木箱一直受沿传送带向下的滑动摩擦力,一直加速,摩擦力始终做正功,机械能会一直增大;若木箱与传送带间的动摩擦因数p

第一节短文改错I'm really sorry,I would have met you on time at 8:30 if everything hadn't gonewrong!I didn't get there in9o'clock,because my watch broke and I didn't know what timeuntiltisThen I hd to walk because I'd missed the bus.ev it or not,I fell over a cat andwassers becameso I had to go home again!Then I decided A catch anothertobut it arrived late.I hope you aren't too angry with myself.Can we go out late Would you like to go withmelaterme to Andy's party on next Saturday night?Looking forward to hearfrom you.hearing第一处：and改为but考查并列连词。固定句型I'm sorry,but…“对不起，不过…”第二处：since改为until考查介词。与前面的否定构成not…until.“直到…才…,”第三处：is改为was考查动词时态和主谓一致。根据前面的didn't可知，此处用一般过去时，且是单数形式。第四处：Believing改为Believe考查固定用法。固定结构Believe it or not“信不信由你”。第五处：dirt改为dirty考查形容词。连系动词后用形容词作表语。第六处：catch前加to考查非谓语动词。构成decide to do sth.“决定做某事”的结构。第七处：myself改为me考查人称代词。be angry with sb.“生某人气”，且介词后用人称代词的宾格。第八处：late改为later考查副词。副词修饰动词短语go out。第九处：去掉on考查介词。在last/next表示时间短语前不用介词。第十处：hear改为hearing考查非谓语动词。look forward to后用动词的动名词形式。