问题
多选题
| 下列关于物体运动的情况中，可能的是（ ） A．物体具有加速度，而其速度为零 B．物体具有恒定的速率，但仍有变化的速度 C．物体具有恒定的速度，但仍有变化的速率 D．物体具有沿X轴正方向的加速度，沿X轴负方向的速度 |
答案
ABD
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| 下列关于物体运动的情况中，可能的是（ ） A．物体具有加速度，而其速度为零 B．物体具有恒定的速率，但仍有变化的速度 C．物体具有恒定的速度，但仍有变化的速率 D．物体具有沿X轴正方向的加速度，沿X轴负方向的速度 |
ABD
| 完形填空 | |||
| The Smiths live at 87 King Street. In the morning, Mr Smith 1 to work and the children go to school. Their father 2 them to school every day. Mrs Smith stays at home every day. She does the 3 . She always eats her 4 at noon(中午). In the afternoon, she usually 5 her friends. They often 6 tea together. In the evening, the children come home from 7 . They get home early. Mr Smith comes home from 8 He gets home late. At night, the children always do 9 homework. Then they go to bed. Mr Smith usually reads his newspaper. But sometimes he and 10 wife watch television. | |||
| ( )1. A. go ( )2. A. takes ( )3. A. housewoks ( )4. A. supper ( )5. A. see ( )6. A. eat ( )7. A. home ( )8. A. works ( )9. A. her ( )10.A. his | B. goes B. take B. homework B. breakfast B. sees B. eats B. school B. work B. hi B. he | C. gets C. taking C. homeworks C. lunch C. play C. has C. park C. home C. their C. him | D. get D. carry D. housework D. milk D. goes D. drink D. zoo D. shop D. them D. her |