6 Na2CO3%=1.0×100%=96.4% 答:碱面中Na2CO3的质量分数96.4% (3)生成的二氧化碳没有被全部吸收(或装置中还残留有二氧化碳气体) 34.(1)R=U3伏 0.1安 =30欧 R=R-R2=30欧-10欧=20欧 查乙图可知制冷器的启动温度是5.6℃ (2)=15分钟+10分钟+10分钟+10分钟=45分钟=0.75小时 W=Pt=2.4千瓦×0.75小时=1.8千瓦时 (或t=15分钟+10分钟+10分钟+10分钟=45分钟=2700秒 W=Pt=2.4×103瓦×2700秒=6.48×106焦 英语试卷参考答案 听力 C 4.C 5.A C7.B8.B9.C10.A 11.A12.C13.B14.B15.A 二、完形填空 16.D17.A18.A19.C20.A21.C22.D23.B24.B25.C 26.D27.B28.D29.A30.B 三、阅读理解 31.C32.B33.D34.B35.A36.C37.D38.C39.D40.C 41,B42.A43.D44.A45.B 四、词汇运用 46. seasons 47, take pride in 48. suddenly 49. beside 50. attend 51. hear 52. share 53. example 4.famous/well-known 55. busy 56. visitors/tourists 57. che 58. under 59. though/although 五、语法填空 61. came 62. him 63. quietly 64. for 65. the 66. to play 67. How 68. friends 69. happier 70. that 六、任务型阅读 71. went shopping 72. played computer games 73. agree 74. look after themselves 75. save 七、书面表达 76. A possible version A Letter to My Parents Dear Mum and Dad I'm writing to express my thanks for all your care and love. All these years, you have done so much. Almost every day, Mum cooks delicious food for me and Dad takes me to and from school. When I'm sick, you look after me carefully and patiently. Both of you always trust me and care a lot about my school life and personal feelings. The many talks we have had and the advice you have given me help me grow. The encouragement from you helps me fear no difficulties and troubles Thanks again for everything you have done for me. Love from Li Ming (100 words) 31一
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