2021年牛津译林版英语中考常考词性转换复习（一）（含习题，有答案）

中考常考词性转换复习（一组） 1.discover v.发现→n.发现________（复数：_________） 2.difficult adj. 困难的；不随和的；执拗的→n.困难，困境________（复数：_________） [注意]名词：_________表示难题，难事时____（可数/不可数），表示艰难，辛苦时____（可数/不可数） 3.necessary adj. 必要的；必需的；必然的→比较级________________→最高级________________→反义词________ [拓展]________（形容词/副词）修饰名词 ________（形容词/副词）修饰动词 考试时要分清楚空格处到底要填形容词还是副词 另外填形容词和副词的时候还要注意_______、________、_______的转换 4.you 人称代词（主格）：你→反身代词________（复数：_________） 5.forty 基数词（复数：_________）→序数词_______ [拓展]常考短语： 在某人40多岁的时候： 某人的40岁生日： 6.lead v.领导→过去式_______→过去分词_______ 7.final adj.最后的→adv.最后的______ 8.pollute v.污染→过去式_______→过去分词________→n.污染；污染物_______ 9.collect v.收集→过去式_______→过去分词_______ 10.invent v.发明→n.发明________（复数：_________） [拓展]与discover之间的辨析 discover 发现的东西原来世界上_______（有/没有） invent 发明的东西原来世界上_______（有/没有） 答案： 1.discovery；discoveries 2.difficulty；difficulties；difficulty; 可数; 不可数 3.more necessary；most necessary；unnecessary； 形容词；副词；反义词；比较级；最高级 4.yourself；yourselves 5.forties；fortieth in one’s forties；one’s fortieth birthday 6.led；led； 7.finally 8.polluted；polluted；pollution 9.collected；collected 10.invention；inventions；有；没有； [巩固练习] 1.The Curies were given the Nobel Prize in 1903 for one of the greatest __________(discover)of the world, Radium. 2.In the past when the world population was much lower than it’s now, a man had little ___________ (difficult)in growing food that was needed. 3.. Pollution and waste is a problem everyone can help to solve by reducing ________________ (necessary) needs in our daily lives. 4. Here is our local snack. Please help ____________ (you)to anything you like, guys. 5.My mother's __________(四十)birthday is coming soon. I want to give her a pleasant surprise. 6. ___________ (领导) by President Xi Jinping, the Chinese people are fighting against the spread of the COVID-19 through China. 7. When the door ___________ (最后)closed on him, he realized that he was refused rudely. 8. In the past, many rivers were ______________(污染) seriously, but now they are cleaned up. 9.—Why do you look so