高中英语知识点大全(30):by、at、call的用法 1、By by prep. 乘……。用来表示方式,其后的名词为单数,且不加冠词。例如: by bike/bus/ car /taxi/train//road/railway/land/boat/ship/ water/ sea/plane/air 但:“步行”用on foot. 注意:若表示交通工具的名词前有限定词,则将by 改作in 或on. in one’s/the car/ bus/plane etc. on the bike by name 该介宾词组的意思是“名叫……”;“凭名字”。如: ①He met a man, John by name. ②I knew him only by name. by one’s first marriage 通过或由于某人的第一次婚姻 介词by有许多含义,在此处意为“通过”,相当于through。 He left by the first train.他乘第一次列车离开了。 The electricity supply is operated by a switch.供电由一个开关控制。 by the age of/at the age of,by到……时为止。表示的是一段时间,句子通常用完成时态。 2、At at在……时候。表示的是具体时间点,句子通常用一般时态。 1 ①By the age of ten,he had learned to play the piano.10岁的时候,他就学会了弹钢琴。 ②He was very clever.and at the age of 15 he went to college.他非常聪明,15岁时上大学了。 ③By the end of this term,we’ll have learned 2000 English words.到本学期末,我们将学会2000个英语单词。 ④At the end of this term,we’ll hold an English party.在本学期末,我们将举行一次英语晚会. 3、call 短语 动词.call所构成的短语很多,现将在中学课上的常出现的由call所构成短语的意义和用法列出。 (1)call at 指短期访问某地:顺便去某处。 We called at the park when we stayed in the city. 我们在那个城市时顺便去了那个公园。 (2)call on 的意思“正式拜访某人”;此外,它还有“号召”之意。如: They called on the famous scientist.他们拜访了那个著名科学家。 The Party calls on us to learn from Comrade Lei Feng.党号召我们向雷锋同志学习。 (3)call to “大声呼唤、招呼、呼求”。如: They called to us for help. 他们向我们呼求援助。 (4)call for 可作“要求、需要、提倡”,还可作“邀约”解。如: This is a problem that calls for immediate solution.这是个要求立即解决的问题。 I’ll call for you then and we go there together.到时我来叫你,我们一起去哪儿。 2 本文来源:https://www.wddqw.com/doc/b1b41254c081e53a580216fc700abb68a882ad7e.html