本题主要考查时态。 根据句意,近年来,人们已经尝试了不同的方法来回收塑料废物。根据 In recent years 可知,应用现在完成时,表示动作从过去持续到现在,并且对现在造成影响,主语 different ways 和谓语 try 在逻辑上为被动关系,应用被动语态 have been tried。 故正确答案为D。反馈...
were tried:被尝试,一般过去时的被动语态;C. have tried:已经尝试,现在完成时;D. have been tried:已经被尝试,现在完成时的被动语态。in recent years:近年来,一般用于现在完成时;可知排除A和B;本句主语different ways是动作的受动者,可知使用被动语态,故填have been tried;选D。
In recent years different ways to recycle the plastic wastes.A. tried B. were tried C. have tried D. have been tried
Quantification of MurNAc 6P accumulation in murQ mutant cells by mass spectrometry allowed us to demonstrate for the first time that Gram-positive bacteria do recycle their own peptidoglycan. This had been questioned earlier, since peptidoglycan turnover products accumulate in the spent media of Gram...
Different Ways to Recycle Old Ink CartridgesDecember 16th, 2017 easygroup An owner of several printers has the tendency to pile up old and used ink cartridges very fast. These old and used cartridges can harm the environment if not disposed properly. Thus, recycling cartridges is ...
百度试题 结果1 题目 to recycle the plastic wastes. ( )36.In recent years different ways_to recycle the plastic wastes. A.tried B. were tried C.have tried D. have been tried 相关知识点: 试题来源: 解析 反馈 收藏
In recent years different ways ___ to recycle the plastic wastes.A. tried B. were tried C. have tried D. have been tried 该题目是单项选择题,请记得只要选择1个答案!正确答案 点击免费查看答案 试题上传试题纠错猜您对下面的试题感兴趣:点击查看更多与本题相关的试题短文改错In recently years many...
recycle回收利用,动词,It's+adj.+for sb.+to do sth.对某人来说做某事…...。结合句意和所给单词,故填to recycle。 句意:这对环境产生很大的影响。make a big difference to对……产生很大的影响,句子时态为一般现在时,主语为第三人称单数,动词为单三形式。结合句意和所给单词,故填make。 句意:你...
人教(PEP)小学英语六年级上册 Unit2 Ways to go to school.Part B Let's talk 教学视频,安徽省部级优课 10:41 人教(PEP)小学英语六年级上册 Unit1 How can I get there?(B) 教学视频,山东省部级优课 10:41 人教(PEP)小学英语六年级上册 U2 Ways to go to school.PA Let's talk 教学视频,湖北省...
We must take action to reduce the use of plastic.There are many different ways to reduce your plastic use at home. To begin with, be sure to1.properly ( proper) recycle everything you can an d throw away what you can't, such as plastic cups an d 2.dishes( dish). If you' d ...