1.当定语从句的引导词在从句中作主语时,定语从句中谓语动词的形式是根据先行词而定的。
【误】People who has been invited to the party are very excited.
【正】People who have been invited to the party are very excited.
【析】例句中who在定语从句中作主语,先行词是people,从句中谓语动词要用have been invited。
2.主语是单数时,尽管后面跟有with,together with,but,except,besides,as well as等介词短语,谓语动词仍用单数形式。
【误】Mary,with her brothers,study Chinese in China.
【正】Mary,with her brothers,studies Chinese in China.
【析】Mary在句中是主语,谓语动词要用studies,而不用study。
3.表示学科名称的名词maths、physics等为单数名词,news为不可数名词,他们在句中作主语时,谓语动词都应用第三人称单数。
【误】Physics are difficult for him.
【正】Physics is difficult for him.
【析】physics在句中作主语为单数名词,谓语动词应用第三人称单数is。
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四年级下册-Its time to get up-Lesson 11
四年级下册-How many classes do you have-Lesson 16
四年级下册-Its time to get up-Lesson 7
四年级下册-Welcome to my new home-Lesson 2
人教(新版)英语四下《Unit 2 It is time to get up》(lesson9)flash课件
人教(新版)英语四下《Unit 6 would you like to take a trip》(lesson34)flash课件
人教(新版)英语四下《Unit 6 would you like to take a trip》(lesson33)ppt课件
四年级下册-There are seven days in a week-Lesson 19
四年级下册-Welcome to my new home-Lesson 5
人教(新版)英语四下《Unit 6 would you like to take a trip》(lesson35)flash课件
四年级下册-How many classes do you have-Lesson 13
四年级下册-What do you usually do on weekends-Lesson 25
人教(新版)英语四下《Unit 6 would you like to take a trip》(lesson32)flash课件
人教(新版)英语四下《Unit 6 would you like to take a trip》(lesson31)flash课件
人教(新版)英语四下《Unit 5 what will you do this weekend》(lesson26)flash课件之一
人教(新版)英语四下《Unit 5 what will you do this weekend》(lesson27)flash课件之一
人教(新版)英语四下《Unit 6 would you like to take a trip》(lesson32)flash课件之一
四年级下册-There are seven days in a week-Lesson 24
人教(新版)英语四下《Unit 3 How many classes do you have》(lesson15)ppt课件
四年级下册-What do you usually do on weekends-Lesson 27
四年级下册-There are seven days in a week-Lesson 22
四年级下册-Welcome to my new home-Lesson 6
四年级下册-Its time to get up-Lesson 9
四年级下册-How many classes do you have-Lesson 15
四年级下册-Welcome to my new home-Lesson 4
四年级下册-Welcome to my new home-Lesson 1
四年级下册-What do you usually do on weekends-Lesson 28
四年级下册-There are seven days in a week-Lesson 21
四年级下册-Welcome to my new home-Lesson 3
四年级下册-There are seven days in a week-Lesson 23