2021-2022学生英语周报 八年级新目标答案

第四部分第二节Iwo davs before my birthday last vear. Dad came home earlv. As usual. Ihelped him carry his bags into his study: When I turned to leave. he said: "Hey. wouldyou like to help me clean my comb? It's been a while since I last cleaned"It hit methen why. as a child. helping my dad clean his comb was such a joy. That routinemeant that my dad was home early to spend the evening with Mum and I. It meantwould watch TV with us or play a few video games with me. It meant a happyloving familyI pass the clean comb back to Dad. I noticed the wrinkles next to his eyes.They are more noticeable when he smiles. but his smile is still as heartw arming asbefore. The smile of a father who just wants a good life for his family. Dad carefullyplaces his comb on top of his wallet. After so many years. he still organises hispersonal items in the same careful way. I guess some things never change. And forthat. I'm glad

2I8.B【解析】由圆的性质知,x则(-)=2,即周期7=x,则=x得故A错误,∵函数关于点对称,∴函数的对称中心为(3+,0)(k∈Z),则当k=2时,对称中心为式,故B正确,函数的一条对称轴为u3。6=,图象的相邻的后面的对称轴x=+2=12,前面对称轴为x=一=-5,则函数的单调递增区间为-+kr,k∈E,当k=012时,函数的单调递增区间为12’12|,k∈Z,此时f(x)在(-,一百)单调递增错误,故C错误f(x)的一条对称轴为x=-江,∴函数f(x)的图象向右平移,此时函数关于y轴对称,故D错误故选B.

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