D．Because she is frightened.

　　【答案】　1-4　CDAB

　　 amount n．数量

　　(教材P22)I'm afraid it'll cost a large amount of money.恐怕这得花费一大笔钱。

　　(1)a(large/small)amount of＋n.[U](谓语动词用单数)

　　(large/small)amounts of＋n.[U](谓语动词用复数)

　　(2)amount to...　　　　共达......；合计......

　　①His debts amount to five thousand yuan.

　　他欠的债合计为5 000元。

　　②I had a certain amount of difficulty finding the house.

　　在找这房子时，我遇到了一些困难。

　　③So far，a large amount of money has been received.

　　＝So far，large amounts of money have been received.(have)

　　到目前为止，已收到一大笔款。

　　[名师点津]　

　　表示"许多，大量"的短语

　　①修饰可数名词：a number of，a good/great many，quite a few，scores of等。

　　②修饰不可数名词：a large amount of，a great deal of等。

　　③既可以修饰可数名词又可以修饰不可数名词：plenty of，a lot of/lots of，a large quantity of/quantities of，masses of等。

④amounts of.../masses of.../quantities of.../varieties of...作主语时，无论of后