沪教版七年级英语上册Unit4TheEarth核心知识综合练习题

（词汇?短语?句型?语法）

一、根据首字母或中文提示写单词

1.Theputers______(系统)helpsusstoreandmanagefileseasily.

2.Weshouldkeeptheseimportantf______(档案)inasafeplace.

3.Theviewfromthemountaintopisa______(令人大为惊奇的).

4.Earthisabeautifulp______(行星)inthesolar