九年级化学知识点

成人自学英语怎么有效呢? 英语小时之前的介词是什么?如“ three hours”from 9:00 to 11:00 的同义词 英语的小时的前面加什么介词2个小时呢? 小时前用什么介词修饰two hours 成年人如何自学英语 100人列队报数,报单数的离队,留下的再依次报数,报单数的再离队,这样重复多次,直到最后只留下一个人,请问此人在第一次报数时是第几号? 除第一题外请判断我蓝笔写的过程对不对.因为是预习,所以不敢马虎. 上补习班有效果吗 我们初二就讲了,表示现在还在写!【跪第二单元我们周围的空气的课题1——空气 该实验装置是如何密闭的?2.为什么选择加热汞?3.为什么要做△HgO实验?4.如何得知容器内个体积减少了1/5呢 英语补习班有用吗是我们英语老师教,我刚举手了怎么在和老师说? 把这个字.十.写在田字格中 求大神写这几题 上英语补习班有用吗?真的会有提高吗? coloured lights的意思 Colourful lights,and laughter greeted me. Although Mary has a————view of our future, nobody believes in what she said.16. Although Mary has a ____view of our future, nobody believes in what she said. A. portable B. primary C. possession D. positive 17. Nobody knows his__for helping u 真正的有浅川这个城市吗 ?求大神帮助夏至未至中的浅川存在吗 ? 加我时候验证要说,我本人长得不错,年级级草,有意带照联系 《七人头上长了草》猜迷语 limited resources availableadj.+n.+adj.不太明白 谁来帮我解释下我的意思是 为什么两个形容词 一前一后来形容这个名词 原句是 A shipwrecked sailor,thrown up like Robinson Crusoe on a deserted island,obviously could not 改写被动语态被动语态1 He often helps Tom when Tom is in trouple.2 People speak English in many countries.3 We saw a bus running towords us at that time.4 We heard her sing at the party last Sunday.5 You must take good care of the children.6 start 有没有被动语态? 求初2英语要掌握的短语例如 give sb sth这类的 越多越好 拓展的最好 现在完成试的被动语态Since the policy of reform and opening up was carried out in China ,great social progress hasbeen made 现在完成试的被动语态变被动Since the policy of reform and opening up was carried out in China ,great social progress hasbeen made噢噢 错了 是变主动 1.She said that no one____(know) who____(fire).2 This book needn’t ____(return) now,you can ____(keep) it for another two days.3 After____(help) by the policeman,the little girl found the way home at last.4 When the car accident____(happen),I ____( 麻烦帮忙改下被动语态1.they gave hin a medal for his wonderful work2.the doctor will ask the patient some questions before he gives her medicine3.they made the yong man head of the volleyball team4.someone will tell you how to prepare for th 关于被动语态的一些问题He was determined to win the game.他决心要赢得那场比赛.为什么要用被动语态,他决心要赢不是主动语态吗,he determined to win the game.这样不可以吗. 被动语态,快1.The girl will sing an English song for us.2.Mom made me do some washing.3.You must water the flowers once a day.4.Does he clean his bedroom every day?5.They have built many tall building. The workers could not find the manager anywhere in the factoryThe army engineers ang soldiers have buitt a bridge over the riverThe police will surely arrest the thieves Does he have any child 中为什么不用children 填空.9题