1.Because he was ill yesterday, so he didn’t go to work. (×)

Because he was ill yesterday, he didn’t go to work. (√)

He was ill yesterday, so he didn’t go to work. (√)

[析] 用though, but表示“虽然……，但是…… ”或用because, so 表示“因为……，所以……”时，though和but 及because和so 都只能择一而用，不能两者同时使用。

2.The Smiths have moved Beijing. (×)

The Smiths have moved to Beijing. (√)

[析] 不及物动词后接名词或代词作宾语时，要在动词之后加上适当的介词；但不及物动词后接home, here, there等副词作宾语时，动词之后不必加任何介词。

3.The box is too heavy for him to carry it. (×)

The box is too heavy for him to carry. (√)

[析] the box既是这句话的主语, 也是不定式to carry的逻辑宾语，若句末再加上it，就和the box重复了。

4.Each of the boys have a pen. (×)

Each of the boys has a pen. (√)

[析] 复数名词前有表个体的each of, one of, every，either of等词组修饰，或有表否定的neither of, none of 等词组修饰时，谓语动词要用单数形式。

5.例:那是你心软！我不就是一个例子吗？

Neither he nor you is good at English. (×)

Neither he nor you are good at English. (√)

[析] either... or..., neither... nor..., not only..., but also... 等词组连接句子的两个主语时，谓语动词遵循“就近一致原则”, 即由靠近谓语的那个主语决定谓语的人称和数用何种形式。

6.Ten minus three are seven. (×)

Ten minus three is seven. (√)

[析] 用英语表示加（plus）、减(minus)等数学运算时，谓语动词也用单数形式。

7.The number of the workers in this factory are about 5,000. (×)

The number of the workers in this factory is about 5,000. (√)

[析] the number of表示“……的数量”，谓语动词用单数形式；a number of 的意思是“若干”或“许多”，相当于some或a lot of，和复数名词连用，谓语动词用复数形式。

8. 例. Hello! I have important something to tell you. （×）

Hello! I have something important to tell you. (√)

[析] 形容词或动词不定式修饰不定代词作定语时，修饰成分要置于不定代词之后。

9. His son is enough old to go to school. （×）

His son is old enough to go to school. (√)

[析] enough作形容词修饰名词时，可以放在名词前，也可放在名词后；作副词修饰形容词或副词时，只能放在形容词或副词之后。

10.. Here is your sweater, put away it.（×）

Here is your sweater, put it away. (√)

[析] put away, pick up, put on等“动词+副词”构成的词组后接代词作宾语时，代词只能放在动词和副词之间。

11. Look! Here the bus comes.（×）

Look! Here comes the bus.（√）

[析] 在以here, there引起的陈述句中，若句子的主语是名词，要用倒装语序，即用“Here /There+动词+名词”结构；但主语若是代词时，则不用倒装语序, 即用“Here/There +代词+动词”结构。

12. I do well in playing football, _______. (我妹妹也行。)A. so my sister does（×）B. so does my sister（√）

Li Lei is really a football fan. --- _______. (确实这样.) A. So is he（×） B. So he is（√）