初中英语语法易错点总结(21)

初中英语语法易错点总结(21)

初中英语语法是英语学习中的重要部分，熟练掌握这些语法知识对提高英语能力有很大帮助。下面是对初中英语语法易错点的总结，供同学们参考学习。

1. 年龄阶段的表达

• 误：He became a writer at his twenties
• 正：He became a writer in his twenties
• 析：表示某人在二十多岁时应用介词in，而具体岁数时用at。例如：He was born in 1990.

2. 具体日期的表达

• 误：We went to swim in the river in a very hot day.
• 正：We went to swim in the river on a very hot day.
• 析：具体某一天要用介词on，例如：on New Year's Day.

3. 节日时间的表达

• 误：I'm looking forward to seeing you on Christmas.
• 正：I'm looking forward to seeing you at Christmas.
• 析：在节日当天用on，而整个节日期间用at。Christmas通常指整个圣诞节期间，可能持续两周或更长时间。

4. 时间段的表达

• 误：I haven't seen you during the summer holidays.
• 正：I haven't seen you since the beginning of the summer holidays.
• 析：during表示在某一段时间之内，一般不与完成时搭配。for表示一段时间，可以用于完成时。through表示"整整，全部的时间"。since则用于表达主句动作的起始时间，一般要与完成时连用。

5. 动作发生的瞬间

• 误：At entering the classroom, I heard the good news.
• 正：On entering the classroom, I heard the good news.
• 析：on加动名词表示"一……就"。例如：on hearing… 一听见，on arrival 一到达就……

6. 书本或文章的开始与结束

• 误：In the beginning of the book, there are some interesting stories.
• 正：At the beginning of the book, there are some interesting stories.
• 析：at the beginning与at the end都是指某事物的开始与结束部分，均不指时间范围，而in the beginning 则是指开始一段时间。in the end=at last是指"最终，终于"之意。

7. 时间截止点的表达

• 误：Till the end of next week. I will have finished this work.
• 正：By the end of next week. I will have finished this work.
• 析：by引起的时间状语表示了动作的截止点，其意思为"不迟于某一时刻将工作做完"，所以主句一般是完成时态。而till则表达其一动作一直持续到某一时刻，但句中的动词一定要用持续性动词，而瞬间的截止性动词应用其否定句式。

8. 过去时间的表达

• 误：He came to London before last weekend.
• 正：He had come to London before last weekend.
• 正：He came to London two weeks ago.
• 析：before一般要与完成时连用，而ago则与一般过去时连用。

9. 时间段的完成时表达

• 误：I have studied English for three years gince I had come here.
• 正：I have studied English for three years since I came here.
• 析：since用来表达主句动作的开始时间，所以其引出的从句中应为过去时，而不能用完成时态。

10. 未来时间的表达

• 误：I can help you repair this bike. You will get it after two hours.
• 正：I can help you repair this bike. You will get it in two hours.
• 析：中文经常讲两小时之后来取，两天内会修好，而这个介词在英文中要用in而不要用after。其原因有二，①after 多用于过去时，如I arrived in New York. After three days, I found a job in the bank. ② after加时间是表达一个不确定的时间范围，如after three days，即三天之后的哪一天都可以。所以在许诺若干时间内会完成某事时，一定要用介词in。

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