英语周报27期2019—2022答案

第三节One possibleversionParagraph 1He was determined to protect the flowers. So he built ahigh wall around them. Not feeling satisfied, he even setup rules as to who could enter the garden, how they mustenter,and what they must follow while they were there.Asa result, children were forbidden to enter and appreciatethe flowers as before. For his part, he continued to see to itthat his treasure received enough sunlight and water so thatthe flowers continued to perform their wonderful magicParagraph 2Hethe flowers seemed to fade day by day,so theman went everywhere for help. He visited every expert, onlyto find his efforts in vain. He felt on pins and needles, see-ing his beloved flowers dying. One evening, he was wan-dering on the street aimlessly when he suddenly noticed theflower woman on the same spot where he had met her, giving away her amazing flowers. It finally dawned on him thatthe flowers are gifts not passessions and that only by sharingcan the magic remain and last

6.A【解析】根据图乙可得原线圈两端电压的有效值为U1=2203,根据公式=型可得副线圈两端电压的有效值为110V,D项错误;因为二极管为理想二极管,所以二极管正向导通时的电流为2=10A=2A设电流表的示数为则有PRT=BR2”解得Ⅰ=√2A,A项正确;电压表的示数为U=IR=55y2V,B项错误;灯泡L的功率为P=IR110W,C项错误

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