2022七年级新目标下册复习学案英语周报答案

cIEn02-a sinB-sinA b-a……2分4=2-ac→>a2+c2-b2=ac,a2+c2-b2_1………4分D为AC中点,则BD=2延长BD至E,使DE=BD,BE=7,四边形ABCE是平行图边形,∠BAE=120°,AE=a,分LABC中=a2+2-2ac0960→a2+c2-ac=19①E中,2+c2-2acos120=BE=49→a2+c2+ac=49②,““、9分10分0得:2a-=30→ac=15,…12分2csInB-=1532页

第一节短文改错After the stressful final exam of each class. it was a -JoyJoyful get-together as our respected teachers and allstudents joined- the picnic leaving the classroom behindThe breezy weather of Eldorado Amusement Park mademind full of joy. Wonderful views ofourmountain peak from this amusement park made ne relaxing. Dressed in colourful clothes, we all were enjoyingrelaxedthe happy from the exciting attractions of the parkhappinessAfter a cheerful timethe park, we started to hop on the rides. Our school volunteers arrangearrangedbiscuitdelicious cheese toast for breakfast, tasty Chinese food for lunch, and crisp biscuits as evening snacks.Welly Joyed the bonfire dancing after the dinner.fully enjoyed the bonfire dancing after the dinner.【文章大意】本文是篇记叙文,讲述了作者所在学校组织的次野餐活动第一处:joy一 joyful【解析】考査形容词。此处作名词 get-together的定语,要用形容词第二处; joined后加in【解析】考查动词短语。 joined in the picnic的意思是“参加野餐活动第三处:us改为our【解析】考查代词。mind前应用形容词性物主代词。第四处: relaxing→ relaxed【解析】考查形容词。-ed结尾的形容词通常用于说明人;ing结尾的形容词主要用于说明事物,表示事物的特质或特征。此处作宾语us的补足语。第五处: happy→ happiness【解析】考查名词。此处作动词 enjoy的宾语,要用名词形式。第六处:on改为in。【解析】考查介词。 in the park表示“在公园里”第七处: arrange→ arranged【解析】考查动词的时态。此处表示过去发生的情况,故用一般过去时。第八处: biscuit→ biscuits【解析】考查名词的数。此处表示复数意义,因此用名词复数形式。第九处:full- fully【解析】考査副词。此处用来修饰谓语动词,因此用副词形式第九处:fill→ fully【解析】考査副词。此处用来修饰谓语动词,因此用副词形式。第十处:去掉 dinner前的the【解析】考查冠词。一日三餐的名词作宾语,其前不用冠词。

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