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。