20232023英语周报新目标20答案

20232023英语周报新目标20答案已经整理完毕，供同学们学习参考，更多英语周报答案，请关注本站。

【解析】电源电动势为3.0V,内阻不计,L1两端的电压为3.0V,由图乙可知,此时的电流为0.25A,所以L的电阻R10,259=129,散A项错误;L1消耗的电功率为P=U=3.0×0.25W0.75W,故B项正确;在图乙上做出电阻R的伏安特性曲线如图所示:A0.300.1O1.02.03.0U由于R与L2串联,所以二者的电流是相等的,由图可以读出,此时二者的电压都是1.5V时,二者电压的和等于3.0V,此时的电流为0.2,A,所以L2的电阻R2=29=7.50,故C项正确;L2消耗的电功0.2率为P=U′=1.5×0.2W=0.3W,故D项错误

Paragraph 1Several days later, when Jenny's father came in toread her a story, Jenny was waiting anxiously for him on thebed. When listening to the story Jenny was totally absentminded, with her hands holding the necklace tightly andfirmly. When the story came to an end, unexpectedlyJenny offered her beloved necklace to her father, with herfingers trembling automatically. No one knew what thenecklace meant to her. She whispered to her father, softlyand gently, "Daddy, you know I love you more than thenecklace. "Then the necklace slid into her father's handsdeterminedlyParagraph 2Holding the plastic pearl his daughter offered, thefather dragged out a blue box. Much to Jennys amazement, a beautiful real pearl necklace lay peacefully in thebox, which set her heart racing. Jenny froze there,athrilled expression twisting her face. Before Jenny was ableto say something, her father brushed a warm kiss on herface and gathered her into his arms. Holding the genuinenecklace in her hand, Jenny lifted her lip, tears beginningto blur her vision

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