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.(√)