经典英语周报八年级下册新目标2021-202235期答案

9.BC【解析】如图所示,把力F分解在垂直于木楔两侧的方向上,根据力的作用效果可知FN=F1=F氵2sn若F一定,0增大时,FN减小,故A项错误;若F一定,θ减小时,FN增大,故B项正确;若0:定,F增大时,FN增大,故C项正确;若θ一定,F减小时,FN减小,故D项错误

写作Dear OliverKnowing that you are returning to your homeland, I am reluctant to saygoodbye to you.【高分句型一】(表达对Over的不舍之情)As for the gift, after careful consideration I recommend you the Chineseknot. Made of red threads, it always represents happiness, luck andunity, though in different shapes. It is a tradition for Chinese to hang it inhouses as a decoration,【高分句型二】 It is usually given as a precious gift toclose friends. I think it can convey your best wishes to your friend.(BF-种礼物并说明原因)Hope my advice can be of some help.(希里)Yours, Li Hua

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