「开学前归纳系列」七上七科知识点——英语(14)
2024-06-15 来源:旧番剧
What is the price of +主语 无论主语是可数名词单复数还是不可数名词,其 be
动词都是 is。
提问数量:how much 不可数名词; how many 可数名词复数形式。
C:help 的用法:help 做动词,意为“帮忙,帮助”,
常用结构为 help sb to do sth =help sb with sth. 帮助某人做某事。
My teacher helps me with my homework 我的老师帮我辅导家庭作业。
Tom often helps his father (to) clean the garden. 汤姆经常帮他爸爸打扫花园。其他用法:① help! “救命”
②help sb with sth 帮助某人做某事。 Lisa often help me with my English.
③help oneself (to) “自便,随便(吃/喝……)
Come on, boys. Help yourselves to some juice. 来,孩子们,随便喝些果汁。
④can’t help doing sth. “忍不住做……” Kate couldn’ t help crying when she won the match.
⑤作名词,意为“帮助”是不可数名词。 Tony needs some help. 托尼需要一些帮助。
D:need 的用法:
①need 做实义动词,有人称和数的变化
They don’t need our help. 他们不需要我们帮助。
Jim’s bike is broken. He needs to buy a new one. 吉姆的自行车坏了,他需要买辆新的。
②need 做情态动词时常用于否定句和疑问句中,后接动词原形,无人称和数的变化,可以直接加 not 构成否定句,也可直接提到句首变为一般疑问句。
You needn’t worry about that. 你不必为此担心。
Need we finish the work before Saturday?我们有必要周六前完成工作吗?