噪声等效光功率有效值

想考成人英语4级 英语水平需要达到什么程度啊! 英语什么都不会,到4级英语水平要多久,什么办法我的英语很烂，你可以当我没学过，我想考雅思去留学，家里经济OK，我也找新东方之类的培训去看过，大班很慢，想问下有没有系统的给个 现在社会人士不能考四级英语,请问通过什么方式可以证明自己的英语水平的级别? = =英语的8道题目.1、If we ___（be）free tomorrow .We___（go）for an outing.2、When someone___（telephone）me yesterday.I ___(read)a new book.3、Jack___(want) to be a diplomat when he ____(grow）up.4、What__you__(do)if you ___(arrive) 同义句转换 they teach us how to make pumpkin into lanterns.they teach us how we make lanterns pumpkins. 关于英语的8道题目1.I go to school every morning early.(用yesterday morning替换)2.David went to a party last week.(改否定句和疑问句）3.They usually eat moon cakes.(改否定句和疑问句）4.Helen doesn't go to school early today 英语They can （make） a model ship. 英语翻译现在是7:20 我9:00来看哦1:两名消防员成功地将这个婴儿从大火中解救出来.（firefighters,rescue）2:1998年的洪灾是近几年来袭击中国的特大自然灾害之一.（disaster）3:自从张家界被开发为 They make the model out of stickes.（改为同义句）They ( )stickes ( ) ( )the model. 1.While it______(rain)heavily.I_____(want)to go put2.Just as my father_____(leave)home,my mom the returned3.I_____(visit)London when I go toEngland4.The boy_____(dust)everything before he went to school5.After she______(read)English,the girl wrote a 英语翻译1.你家离邮局有多远____ _____ is it from your huose to the post office2.一年有365天There are____ _____ _____ ______ days in a year.3.她上个月乘火车去了上海She _____ _____ _____to Shanghai last month4.他的父亲匆 （ ）I___but___nothing.A.was listened;was hearing B.listened;heard C.have listened;heard D.listened;head of 英语 第六大题全部 英语第六大题和第七 英语.第六大题. Let't play the game.________(one),we should sit round the table. they can——（make） a model ship（用所给单词的适当形式填空） 六、用所给词的适当形式填空.4、They are model piane in the classroom .(make) none nothing区别 nothing 与none的区别I wish I could offer you some cake but there's ______left.A.nothing B.none C.nobody D.no one此题答案为B,A为什么不对? 第三人称复数 动词要加S否?比如:Tom and Jim come from某国还是comes from? You can sit on the chair.(改为否定祈使句) 搬椅子来坐 I brought a chair by myself to sit on? 在椅子上是in the chair还是on the chair?为什么?为什么在公交车上是用on而在车里用in? Some of ____(they) are busy with the orange picking. none和nothing的区别is there any milk in the fridge?No,there is _____这里填none还是nothing请讲出详细的理由, they are busy ----------model planes 填词 none 和 nothing 的区别简明说明,谢谢 they are 后面能加some It is a book.复数可以变they are some books 不是there are 是they are我知道there are 后面要加some我问的是they are后面要加some吗？ 查一查 查查字典,说说下面词语中的,打,打水,打伞,打字,打毛衣 打球,打鱼,打草稿、打电话 依次将打锣,打鱼,打毛衣,打水,打油,打柴,打包,打电报几个词语重的打换一个字而不改变词义 行为动词的第三人称单复数变化有没有什么规律?