这里就上海六年级上部分学生典型语法易错题做个简单分析:
I.填入合适的词，使得句子完整。
1.We'll have a class meeting on Friday morning.
评析：in the morning, in the afternoon,介词用"in"，但是如果是具体的某日的早上，下午，介词必须用"on"
2.Please finish doing your homework before supper.
评析：finish doing, 记住这个固定结构，finish+动名词
3.Lily started learning/to learn English when she was five years old.
评析：start to do或者start doing都可以，意思一样。
4.We must not draw on our desks.
评析：情态动词后一般会跟另一个动词组成谓语，而这另一个动词用原形。
5.-When is your birthday, Lucy? –August 8th. When is yours?
评析：物主代词后面不带修饰的名词，那就是名词性物主代词"yours"而不是形容词性物主代词"your"
II.用括号中所给的单词适当形式填空，每空限填一词。
1. Look！The reporter is interviewing our headmaster. (interview)
评析：一般用上"look!(看)"，那就是当下正在发生的事，那后面看到的动作就用现在进行时。
2. I have ever been to Singapore for trip. (be)
评析：首先读完句子，了解整句的意思"我曾去过新加坡旅行"，又看到"have ever"就能判断用现在完成时。
3. The dish tastes good , so we eat it up. (good)
评析：一些感官动词后面要用形容词，比如：taste,look,sound,smell,feel
4. How many clubs do you have in your schools?(club)
评析：many后面接可数复数名词，所以别忘了加复数。
5. My mother usually finishes her work at 4:30. (finish)
评析："my mother"是三单，而整个句子的结构可以判断是一般现在时，所以要加三单的形式，而finish的三单是加"es"
6. Kitty is writing an invitation to her teachers. (invite)
评析：invite是动词，而句中要的是名词，所以"invitation"
7. I looked at the black dog angrily because it broke my bowl. (angry)
评析：要填入的词是修饰"looked at"的副词，"angry"形容词，改成副词"angrily"
8. Last night! I went out for a meal with a friend of mine (my).
评析：这道题很容易做错，首先分析结构和意思，不少学生填"me",理解成"占用关系"可是一般物才会用"of"表示占有,所以这里是"我的朋友中的一个朋友"的意思，省略了名词"friend",所以是名词性的物主代词"mine"。
9. Your diet is less health than my diet. (healthy)
评析：这道题也是很容易错填成"healthier",因为很多学生看到"than",就条件反射用比较级，这是好的，可是忽略了"less"已经是比较级了,而且在句中做形容词修饰后面的名词"health".
10. I eat plenty of fresh fruit and vegetables. (fruit)
评析：plenty of 后面可以接可数复数名词和不可数名词，这里"fruit"作为集合名词，是不可数。
III.根据所给要求完成句子，每空格限填一词。
1.He has never been to Sandy Bay. (改为一般疑问句)
Has he never been to Sandy Bay?
评析：现在完成时的一般疑问句就是把"has或have"提前。
2. She is a kind girl. (改为感叹句)
How kind the girl is!
评析：只有两个空格，所以用"how+形容词"，因为what是修饰名词，分析句子结构就知道不适合用"what".
3. He spent twenty minutes reading English this morning.(对划线部分提问)
How long did he spend reading English this morning?
评析：这个不多说，因为不难，顺便提下spend ----doing，是固定的搭配。
4. This pair of shoes cost me 200 yuan. (保持句意基本不变)
I paid 200 yuan for this pair of shoes.
评析：一般如果主语是物，则用动词"cost",表示某物花了某人多少钱，而主语是人则动词一般用"pay",原句用的是过去式，所以改的句子也用过去式。