外研初中二年级上册Module3JourneytospaceUnit3Languageinuse

diaryevenJupitersecretrealtwiceexploremissionunmannedNewwords日记甚至木星秘密，秘密的真实的两次探测任务不载人的

LanguagepracticeHaveyouheardthelatestnews?SomescientistshavesentaspacecrafttoMars.AndhavetheastronautsdiscoveredlifeonMars?Butastronautshavealreadybeentothemoon.

现在完成时（二）当我们要表达“已经做完某事”或者“刚刚做完某事”时，也用现在完成时来表达。其结构也是：have/has+动词的过去分词.常用的时间状语有:already,just,一般置于have/has之后，用于肯定句中；在否定句中则要用yet表示“还，未”。Grammar

1)Ihavealreadyhadmybreakfast.2)ShehasjustreadabookaboutMars.3)Tom’sparentshaven’tbeen