[易错点一] 名词
1. 这些女老师们在干什么?
[误] What are the woman teachers doing?
[正] What are the women teachers doing?
[解析] 在英语中，当一名词作定语修饰另一名词(单或复数形式)时，作定语的名词一般要用其单数形式;但当man, woman作定语修饰可数名词复数形式时，要用其复数形式men, women。
2. 房间里有多少人?
[误] How many peoples are there in the room?
[正] How many people are there in the room?
[解析] people的意思是“人们”。
3. 我想为我儿子买两瓶牛奶。
[误] I want to buy two bottle of milk for my son.
[正] I want to buy two bottles of milk for my son.
[解析] 表示不可数名词的数量时，常用“a / an或数词+表量的可数名词+ of + 不可数名词”这一结构，其中当数词大于1时，表量的可数名词要用其复数形式。
[易错点二] 动词
1. 你妹妹通常什么时候去上学?
[误] What time does your sister usually goes to school?
[正] What time does your sister usually go to school?
[解析] 借助助动词do(或does)构成疑问句或否定句时，句中的谓语动词用其原形。
2. 琳达晚上经常做作业，但今晚她在看电视。
[误] Linda often do her homework in the evening, but this evening she watching TV.
[正] Linda often does her homework in the evening, but this evening she is watching TV.
[解析] 一般现在时的谓语动词用原形或三单形式，Linda是第三人称单数，故谓语动词应用does;现在进行时的谓语动词结构为：am/is/are doing，故应为she is watching TV。
3. 这双鞋是红色的。
[误] This pair of shoes are red.
[正] This pair of shoes is red.
[解析] 在shoes, trousers, gloves, glasses等表示成双成对的衣物或工具名词前用pair(表计量)修饰时，谓语动词的形式由pair的单复数形式来决定。
[易错点三] 代词
1. 这张票是她的，不是我的。
[误] This is hers ticket. It’s not my.
[正] This is her ticket. It’s not mine.
[解析] 物主代词有形容词性物主代词和名词性物主代词之分。形容词性物主代词之后一定要接名词，而名词性物主代词之后不能接名词。
2. 吴老师教我们英语。
[误] Miss Wu teaches our English.
[正] Miss Wu teaches us English.
[解析] teach sb. sth..中的sb.作teach的宾语，因此当sb.为人称代词时要用其宾格形式。
[易错点四] 介词
1. 你能找到这个问题的答案吗?
[误] Can you find the answer of this question?
[正] Can you find the answer to this question?
[解析] 英语中用“the answer to …”表示“……的答案”。类似结构还有the key to the door, the way to the zoo等。
2. 格林先生星期六晚上来这里。
[误] Mr. Green will come here in Sunday evening.
[正] Mr. Green will come here on Sunday evening.
[解析] 表示在上午、下午等时，介词要用in;而表示在具体的某天上午、下午时，介词要用on。
3. 那个穿着红裙子的小女孩是我们老师的女儿。
[误] That little girl on a red skirt is our teacher’s daughter.
[正] That little girl in a red skirt is our teacher’s daughter.
[解析] 用介词表示“穿戴衣物”时，只能用in，其他介词没有此用法。
[易错点五] 副词
莉莉，你为什么不回家呢?
[误] Lily, why don’t you go to home?
[正] Lily, why don’t you go home?
[解析] home在这里是副词，动词后直接加副词。
[易错点六] 连词
我喜欢语文和英语，但我不喜欢体育和历史。
[误] I like Chinese and English, but I don’t like P.E. and history.
[正] I like Chinese and English, but I don’t like P.E. or history.
[解析] 在肯定句中并列成分之间用and来连接;而在否定句中，并列成分之间的连接需用or。
[易错点七] 冠词
乘飞机去北京花了史密斯一家人一个小时。
[误] It takes Smiths a hour to go to Beijing by a plane.
[正] It takes the Smiths an hour to go to Beijing by plane.
[解析] ①表示“……一家人”用结构“the + 姓氏复数”;
②hour 一词的第一个字母不发音，它的发音是以元音音素开头的，所以“一小时”要用 an hour;
③用介词by表示“乘坐”某种交通工具时，交通工具名词前不加任何冠词。
[易错点八] 句法
——你不是学生吗? ——不，我是学生。
[误] ——Aren’t you a student? ——No， I am.
[正]——Aren’t you a student? ——Yes， I am.
[解析] 对否定疑问句的回答是用Yes还是用No，这取决于实际情况：如果事实是肯定的，就用Yes;如果事实是否定的，就用No。
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