初二下学期英语书后的过去式表 不规则动词表不定式(Infinitive)过去式(Past Tense)过去分词(Past Participle)am，is 是 was beenare是 were beenbeat击打 beat beatenbecome变成 became becomebegin开始 began begunblow吹 blew blownbreak断开 broke brokenbring带来 brought broughtbuild建筑 built builtburn燃烧 burnt burntbuy买 bought boughtcan能 could/catch抓住 caught caughtchoose选择 chose chosencome来 came comecost价值 cost costcut切 cut cutdeal处理 dealt dealtdig挖洞 dug dugdo做 did donedraw画 drew drawndream做梦 dreamt dreamtdrink喝 drank drunkdrive驾车 drove driveneat吃 ate eatenfall落下 fell fallenfeed喂 fed fedfeel感觉 felt feltfind找寻 found foundflee逃跑 fled fledfly飞 flew flownforget忘记 forgot forgottenfreeze冷冻 froze frozenget得到 got got，gottengive给 gave givengo去 went gonegrow成长 grew grownhang挂 hung hunghave有 had hadhear听 heard heardhide隐藏 hid hidden，hidhit打 hit hithold拿住 held heldhurt伤害 hurt hurtkeep保持 kept keptknow知道 knew knownlay放置 laid laidlearn。
bore\\bored\\boring的区别 bore主要有2种意思，一种是我们所熟悉的“使人厌烦、厌倦”；另外的一种则是“钻洞、挖孔”.我想你在这里要讨论的意思应该是前者吧。bore是及物动词，bored是它的过去式和过去分词形式，boring是它的现在分词形式，bored既然是过去分词，那么它修饰的主语应该是人，boring修饰的主语应该是事物，我在这里举个例子帮助你理解这个意思.比如：His class bore me badly，and I cannot stand it。他的课很让我厌烦，我实在不能忍受了。这句话还可以这么说：I am bored by his class，and I cannot stand it。也就是说，这个时候我的感觉是bored，I feel bored to his class.这句话依然可以这么说：his class is boring，and i cannot stand it。他的课真烦人，我实在不能忍受了。
undermined是什么意思 undermined[英]['？nd？'ma？nd][美]['？nd？'ma？nd]adj.潜行的；v.在某物下挖洞或挖通道(undermine的过去式和过去分词)；侵蚀…的基础；暗中破坏；逐渐削弱；。
