20xx衢州二中高二理科寒假作業答案(已改無錯字)

　　

【正文】 the two defeated all his money. So lostthey had to stop, leaving Irvin stand where he was. At that time, he found that Conan was standingmissed. He looked around but found nothing. So he ran here and there in search of his lost missing nobodyson. At last, he found his son to playing dice with two children in the corner of the next street. 刪去Irvin could hardly believe that his son could copy him so quickly, that made him ashamed as whicha father.練習五一、詞匯辨析1) leave 2) holidays 3) festival 4) vocation/holidays 5) opinion 6) thought 7) idea8) concepts 9) human 10) races 11) soul 12) man 13) creature二、單項填空15 A B D C A 610 A D C B C 1115 B D B B A 1620 C C A B B 2125 D A A B B 2630 B D D C A三、完型填空1—5 A C C C D 6—10 A D B C D 11—15 D A B A A 16—20 D C B C B 四、閱讀理解15 A D B B D 69 D C B A五、短文改錯Mother often says I looked like a little monkey when I was small. And she is always said, saying“You didn’t eat much food. But you ran and jumped a lot of during the day. I felt worried. 刪去Fortunately the doctor told me that you were in good healthy.” HealthBut several years later, I liked eating very much. Not only the meals did I had, but also havelots of snacks. As a result, I was getting fat. I was no a little “monkey” any more. It was a notterrible thing! So I made up my mind loseweight. I ate little food every day. A week later, I found I to losehadn’t lost any weight. Therefore, I got a bad headache. InsteadWhen Mother got to know that, she told to me, “Honey, getting fat is not a terrible thing. Don’t worried. You look very healthy and happy! worry “Really?” “Yes.” Since then on, I didn’t try to lose weight any more. But I’m still afraid of fat. From being fat物 理練習一1．D 2．A 3．C 4．C 5．D 6．C 7．ACD 8．BC 9．D 10．C 11．C 12．B 13．AD 14．BC 15．D 16．A 17．小，大 18．UD=0 19．（1）電壓；歐姆（2）開關或連接點6（3）①調到歐姆檔②將紅、黑表筆相接，檢查歐姆檔能否正常工作③測量小燈泡的電阻，如電阻無窮大，表明小燈泡有故障。 20．⑴乙 ⑵小 ⑶， 21．⑴E=104N/C ， 水平向左 ⑵vA=22．⑴ ⑵s= d/4 23．E=，r=24．⑴E=2V，帶負電 ⑵a=，方向豎直向上練習二1．D 2．AC 3．AB 4．ABC 5．D 6．B 7．D 8．ACD 9．BC 10．A 11．D 12．A 13．220；1:4 14．104 15．。 16． 順時針方向 Bdv/r Bdv/(2+) B2d2v/r B2d2v2/r 17．mgsinθ，18． 1W 19．(1)v2= (2)v1= (3)Q= 20． BLV0/3；4 B2L2V0/3r；4 B2L2V20/3r21． 22．⑴T=3ts ⑵ ⑶t/s021134ib/A22123．⑴ ⑵I=A練習三1．B 2．AD 3．C 4．D 5．D 6．A 7．D 8．ACD 9．D 10．BD 11．ACD 12．A ，向左 13．4 14． 30015． ⑴103A，順時針 ⑵105N16． (1) E1=kdv03/2a (2)F=ma+k2d2a3t517． t= 18．（1） 5m/s2 （2） （3）練習四1．D 2．A 3．BCD 4．BD 5．BC 6．B 7．AD 8．B 9．BD 10．C 11．AC12．3 2 13．10W 14.① CHFAHGE或AHGCHFE ② 1000 500 15．（1）實驗電路如圖（2）在方格紙內畫出IU圖線 （3）先不變后增大； VA16．（1） （2）（3） 17．正電, （5分）GFNθθB（5分）18．①磁場豎直向上，導線受力如圖tgθ=F/mg=BIL/mg B=tgθmg/IL②當安培力F與支持力N垂直時F最小，磁場最小，導線受力如圖sinθ=F/mg=BIL/mg B= sinθmg/IL ，B方向：垂直斜面向上化 學練習一1. D 2. A 4. C 5. B 6. A 7. D 8. B 9. C 10. C 12. D 13. A 14. C 15. C 16. A 17. B 18. C 25. C26．a.⑴①2H+ + 2e = H2↑ 放出氣體，溶液變紅。 ②2Cl 2e = Cl2 把濕潤的碘化鉀淀粉試紙放在Y電極附近，試紙變藍色。 ⑵①純銅 Cu2+ + 2e = Cu ②粗銅Cu 2e = Cu2+ b. F ，C ， D ， E27． Fe； Al2O Fe(OH)3； 3Fe3O4+8Al 9Fe+4Al2O3Fe+4H2O Fe3O4+4H2↑、4Fe(OH)2+O2+2H2O=4Fe(OH)Al2O3+2OH=2AlO2+H2O、①③④⑤。230.(1)B和C(2)E　還原(或加成、加氫、催化加氫等)29．（1）CH3CH2CH2CH3，CH3CH(CH3)2（2）CH3CH2CHO（3）OHC－CHO（4）CH2＝CH－CH2OH30．A為乙醛（結構簡式為CH3CHO），B為乙酸乙酯（結構簡式為CH3COOCH2CH3）。31．(1)60 mL　(2