2022英语周报七年级新目标28答案

书面表达One possible versionDear Mr. Smith.First of all, I would like to congratulate you on your school s sixtieth anniversary. The long history of theschool brings up its outstanding campus culture and educational concept. I take great pride in studying at thisexcellent school. At your invitation, I will perform a Chinese folk dance at the celebration ceremony to expressmy congratulations. Please prepare the audio equipment to play the accompanying music. I will prepare thedance music and costumes myself. I am delighted to be able to make a modest contribution to the promotion ofChinese culture and cultural exchanges between China and the UKBest wishes.Yours truly,Li Hua

(16)满分14分(1)解铁由余弦定理及a=252,b=5,c=,有COsC=a2+b2叹又因为C∈(0,x),所以C=在△ABC中,由正弦定理及C=,a=2√2,c=√3,可得aS加eSIn(Ⅲ)解:由a

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