小学英语中需要掌握的英语语法并不多,但是一些基本的英语语法还是需要的,比如be动词,情态动词,助动词等。
be动词(am、is、are)+not、
情态动词can+ not、
助动词(do、does) + not
如何将一个肯定的陈述句改为否定句:
1、看句中有无be动词,如有,直接在be动词后+ not。
2、看句中有无情态动词,如有,直接在情态动词后+ not。
3、如上述二者都没有,就应用助动词+ not。分四个步骤:
(1)肯定陈述句中本来是没有助动词的,要加上去,位置在主语(某人或某物)后,动词前。
(2)确定助动词用do、does,根据句中动词,动词是原形的助动词就用do,动词是第三人称单数的助动词就用does,
(3)在助动词后加not。
(4)原句中动词假如发生变化就要恢复成原形。
强调一点,有some的要考虑是否要用any。
2015秋鲁教版英语九年Unit 4《I like music that I can dance to》(SectionB 1a-2e)ppt课件
2015秋鲁教版英语九年Unit 4《I like music that I can dance to》(SectionB 3a-self check)ppt课件
2015秋鲁教版英语九年Unit 4《I like music that I can dance to》(SectionA 1a-2c)ppt课件
2015秋鲁教版英语九年Unit 11《What’s the highest mountain in the world》(SectionA (1a-2d)参考课件
2015秋鲁教版英语九年Unit 4《I like music that I can dance to》(SectionA 2d-3c)ppt课件
鲁教版英语九年《Unit 9 The world’s highest mountain is 8,844 meters》ppt课件之二
2015秋鲁教版英语九年Unit 3《It must belong to Carla》(SectionB 2a-3b)ppt课件
2015秋鲁教版英语九年Unit 12《Could you please tell me where the restrooms are》ppt单元写作课件
2015秋鲁教版英语九年Unit 11《What’s the highest mountain in the world》(SectionB 1a-2e)ppt课件
鲁教版英语九年《Unit 7 You’re supposed to shake hands》ppt课件之一
2015秋鲁教版英语九年Unit 2《Teenagers should be allowed to choose their own clothes》(Self Check)ppt课件
2015秋鲁教版英语九年Unit 1《When was it invented》(SectionA 1a-2d)ppt课件
2015秋鲁教版英语九年Unit 1《When was it invented》(第四课时)ppt课件
2015秋鲁教版英语九年Unit 1《When was it invented》(B-2b)mp3朗读
2015秋鲁教版英语九年Unit 12《Could you please tell me where the restrooms are》(SectionA 3a-3b)ppt课件
鲁教版英语九年《Unit 8 loud music makes me tense》(Section A)ppt课件
2015秋鲁教版英语九年Unit 4《I like music that I can dance to》(Section B)ppt课件
2015秋鲁教版英语九年Unit 11《What’s the highest mountain in the world》(SectionA Grammar-4c)ppt课件
2015秋鲁教版英语九年Unit 2《Teenagers should be allowed to choose their own clothes》(SectionA)ppt课件
2015秋鲁教版英语九年Unit 1《When was it invented》(第六课时)ppt课件
2015秋鲁教版英语九年Unit 3《It must belong to Carla》(SectionA 1a-2d)ppt课件
2015秋鲁教版英语九年Unit 4《I like music that I can dance to》(SectionA Grammar-4c)ppt课件
2015秋鲁教版英语九年Unit 1《When was it invented》(第一课时)ppt课件
2015秋鲁教版英语九年Unit 3《It must belong to Carla》(SectionB 1a-1d)ppt课件
2015秋鲁教版英语九年Unit 2《Teenagers should be allowed to choose their own clothes》(SectionB)ppt课件
2015秋鲁教版英语九年Unit 1《When was it invented》(第五课时)ppt课件
2015秋鲁教版英语九年Unit 1《When was it invented》(SectionB 1a-2e)ppt课件
2015秋鲁教版英语九年Unit 12《Could you please tell me where the restrooms are》(Section B)ppt课件
2015秋鲁教版英语九年Unit 12《Could you please tell me where the restrooms are》(Section A)ppt课件
2015秋鲁教版英语九年Unit 1《When was it invented》(A-1b)mp3朗读
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |