20xx寒假作業(yè)八年級(jí)-資料下載頁(yè)
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【正文】 6 y=9 P30—12 正比例函數(shù)Y==K*(2)則K==(X)/X+2=(4Y)/(Y2)整理得:Y=X+4 三角形PQO的面積2*4/2=4 13題34=22k+b 36+23k+b21得：k=2 由1得：b=10所以y=2x10 第三小題：當(dāng)y=30時(shí)，x=20 所以鞋長(zhǎng)為20厘米14題（1）y1+x y2=12+(2)答：小斌選取會(huì)員卡租碟核算P31 DBADCD x≥3 1,2,3 16， m≥0 P32—12 {3x23x5 {X（2）共有4種方案：甲禮盒安排9盒，乙禮盒安排6盒，或甲禮盒安排10盒，乙禮盒安排5盒，或甲禮盒安排11盒，乙禮盒安排4盒，或甲禮盒安排12盒，乙禮盒安排3盒15（1）A(6,0)B(0,6)（2）{4=k+b 0=4k+b 21得：k=2 b=8 y=2x+8(x不等于4_)（3）S=X(82X)/2 無解英語(yǔ)P33：take a deep breathshow make mistakesget a bad markthe answer to the questionenter a petitiontry western fooddream e turegive concertsgo abroad 2．really 3．visitors 4．Italian 5．wonderful 6．first 7．foreigners 8．translating Why don39。t What else What shoud do Where have seen has never visited anyHurry up，the plane is adout to take offWe have to stay here until tomorrow, for tickets have been sold outHe always speak English in classWe should help each other you tell me how to learn English well P34：AABCB P35：1:on business 2:so far 3:now and them 4:space station 5: the same as 6: be different from 7。drop out of school 8:receive education 9:with the help of 10:in the near 15 years 第二題:1:planets2:cost3:speak4:mad5:examed6:some messages7:go abroad8:in village P36： CACBACBCDB P37：第一道 Playing electronic music Except...outside One of the most important figures Due to the negligence extinguish No matter do what As...recording kinds of music grow up 第二道fun sadly called was cooking elder sitting noisy was reading。came 第三和第四道 1:gold ring 2:play any tnstraments 3:of 4:go off 5:in the 20th century 1:wasn39。t he 2:isn39。t there 3:jack was ranning in the park at this timeyestday 4how many times go shopping with her mother P38: although she was CCACBACCAB P39： proud of 39。t wait to do angry with sb polite to sb 5:on the 次ornerof 6:at the ticket counter 7:take awalk out side 8:Russia history 9:intyoduce sb 10:shake hands with sb 第二 lovely,glasses,strangers,swimming,across,angrily,to eat,worry 第三1:Does smells or 2:thin with 3:by bicycle 4:to go to 5:It took to get 6:turn right P40: Beijing roast duck Looks like best neighbor Have heard from so many paintings science lab DBACD P41： 第一animals in danger take away Nature reserve In depth study Peace life Take...as Magic show A master of language fall in love with As you know 第二 to stop,not to kill,a few,difficult,scientist,Indian, southwest in china,less and less,is famous for,has already agreed to,says goodbye to,live on,difficult I don39。t know,: too young of to invite to saw What does to do where and when B,B,D,自殺,He found ideas there for his books and stories P43 第一道at the moment from time to time And...pared And...pared On the first day On time get marry depend on 第二道rains possible moved across shoutting cloudy to swim chose 第三道what39。s the weather like mustn39。t be What must will you what’s baseball cap you must’nP44: You39。d better not visit Moscow in winter It no way to walk After the wedding married stop chatting wash up CCAADDCDDC P45：CADBBDCB P45第二題： 1:cost 2:named 3:own 4:miss 5:rather 6:smell 7:provide 8:feeding P46：Table tennis is my favorite game You39。d better to write down your mistakes in notebook Do you think of the movie ? His family took him around Europe Everyone should practise speaking English every day BCABDBCDBA P47：pronounces davice counties musician latest enter lucky health CADCCCADP48 DCDA P48: around the world working to save Parents want him to drop His parents want him to quit school Because of thousands of Please tellwhere is DCDA
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