精选优质文档-倾情为你奉上Unit 4 Astronomy: the science of the stars一、基础测试A. 单词拼写请根据汉语提示或首字母写出单词的正确形式1. What would happen if there were no _ (大气层).2. A bomb was _ (爆炸) at a gas station this morning and five persons were killed.3. The government is encouraging the _ (发展) of small businesses.4. Fruit juices can be _ (有害) to childrens teeth.5. Because of the _ (到场) of the famous football star, everyone cheered up.6. Without o_ animals c
