A lot of consum

A lot of consum A lot of consumer goods are made of nylon.许多消费品都是尼龙作的。 The Flower Show is usually held here in October. 花展通常于10月在此举行。 The cinema will be closed for repair from March 3rd.影院自三月三日起修理内部停止营业。 3)be加动词不定式 有下列各种用法: a)示未来的安排或。如: The delegation is to leave for Shanghai tomorrow.代表团定于明天去上海。 I'm to be home before midnight.我午夜前一定回来。 b)表示必要或命令或问对方的意志。如: You're to hand in your exercises tomorrow.你们明天要交练习。 Where am I to put these tools? 这些工具应该放在什么地方? What is to be done?怎么办? c)表示"可能"，与can或may相仿。如: I am not sure whether he is to turn up tonight.我不能断定他今晚是否能来。 My key is nowhere to be found.我哪儿也找不着我的钥匙。 d) be + about + 动词不定式则表计划即将，如: The meeting is about to begin.会议即将开始。 have 的过去式是had。Have (had)作为助动词和过去分词一起，构成各种完成时态。如: I have known Mr. Smith for four years.我认识史密斯先生已经四年了。 He has not made up his mind yet.他还没有决定呢。 A woman came in with a baby，who had just swallowed a safety pin.一个妇女带进来一个刚吞进一个别针的婴儿。 [注] have的简略式是've，has的简略式是's，had的简略式是'd，如 I've，you've，he's，I'd，we'd，he'd，they'd等。 do 的过去式是did。do (did)作为助动词，有下列一些用法: 1)构成现在一般时和过去一般时的疑问句和否定句。如: Do you know each other? 你们两人认识吗? How do you find the climate here? 你觉得这里的气候怎么样? She did not go to hospital after breakfast She went to work as usual.早饭后她没有去医院，她照常上班去了。 2)构成否定的祈使句。如: Don't be so careless.不要那么粗枝大叶。 Do not hesitate to come when you need help.有困难只管来。 3)加强陈述句和祈使句的语气。如: I do think he is right.我确实认为他是对的。 Do come often.一定常来呀。 Do ask，if you have any questions.如果有问题，务必提出。 4)用于倒装句中。如: Only then did I understand the importance of science.只是到了那时，我才了解到科学的重要性。 Never did I expect to see him there.我从未想到会在那里看到他。 5)还可用来代替主要动词，以避免重复。较常用在简略答语中。如: Does he also study geography?他也学地理吗? ――Yes，he does.是的，他也学地理。 Did it snow a lot last week? ――Yes，it did。上星期雪下得多吗? --是的，下得很多。 He works even harder than you do. 他比你还要用功。 [注] 上面最后一句中的do应唤作替代词，只是为了初学者的方便而放在助动词项下。 shall和Will 助动词 shall本身没有词义，只用在第一人称的将来时态中(现多为will所代替)。在将来一般时中，shall后接动词原形。如: