2022英语周报，七年级下册32期答案

Paragraph 1:Suddenly he heard a bird s wings beating the dry grass. Ben moved quickly towardthe sound and saw a colored head of a beautiful bird the bird did not move until Bencame close. Then it tried to fly away, but one wing was broken. Ben lifted the bird and heldit close against his body. The bird fought to escape, but soon lay quietly in Ben's armsBen decided to take the bird home and fix its broken wings so that it could fly again. Hewas almost through the woods when he heard the hunter behind him. It is mine!Paragraph 2:There was something threatening in the mans cool quiet voice. The hunter steppedcloser and said, "Give me that bird! " ben was frightened However when he saw the birdtruggling weakly and made a wild, strange noise, he knew he could never give this bird tothe hunter. This feeling gave Ben great strength, and he was no longer afraid. The woodswere strangely quiet. To Ben s surprise, the hunter slowly walked away. Ben carefullystudied the injured wing. He stayed with the bird, smoothing its feathers, delighted to seeit recovering slowly

7B【解析】根据SMm=m2,解得a=1/M牲过的面积S=20=27=GM,因为轨道半径之比为n,则角速度之比为√21,相等的时间内扫过的面积之比为n:1,B项正确,A项错误;根据Mm-my2,解得=,因为轨道半径之比为n:1,则线速度之比为1:Vn,C项错误;根据GMmma,解得a=9y,因为轨道半径之比为g则向心加速度之比为1:n2,D项错误。

以上就是2022英语周报，七年级下册32期答案，更多英语周报答案请关注本网站。