【正文】
gretted D. wished[ 7. A. marked B. finished C. given out D. turned in 8. A. left B. disappeared C. stopped D. dismissed 9. A. stand B. grow C. bring D. rise 10. A. depend B. defend C. stand D. walk 11. A. tests B. students C. friendship D. honesty 12. A. enjoying B. cheating C. teaching D. helping 13. A. should B. could C. would D. must 14. A. wondering B. realizing C. laughing D. believing 15. A. lied B. helped C. stolen D. cheated 16. A. copying B. borrowing C. asking D. searching 17. A. strange B. dishonest C. sorry D. wrong 18. A. Because B. If C. Until D. Although 19. A. trouble B. good C. harm D. favour 20. A. insisted B. tried C. continued D. refused[來(lái) 四 閱讀理解 Have you ever seen a horse with toes(腳趾 )? Millions of years ago, horses had many toes. They had four toes on each front foot. They had three toes on each back foot. The horses were smaller than cats. These small horses lived in the forest. Their many toes helped the horses run over the soft wet ground. It was very hot in the forest. But the weather changed. It became cold. Many trees couldn39。t live in cold weather. The trees died and fell. Open field took the place of(代替 ) forests. The sun made the ground dry and hard(堅(jiān)硬 ). Horses began to change too. They began to get bigger. This took a long time. On the dry hard land, horses needed only their middle toes for running. Their middle toes became hard. After a long time horses had only one hard toe on each foot. We call this hard toe a hoof(馬蹄 ). (21) Long ago, the horse had four toes on each of its ______. A. back feet B. front feet C. right feet (22) The cats were ______ the horses at that time. A. much bigger B. smaller than C. bigger than (23) Which of the three sentences is true? A. The weather stays the same the whole year all over the world. B. When the weather changed, animals began to change too. C. Cats were bigger in the pa