Section Ⅳ　Language points(Ⅱ) (Word power，Grammar and usage & Task)

　　Ⅰ.单词拼写

　　根据汉语或首字母提示，写出下列单词。

　　1．I drop the letter into the mailbox(邮箱)in front of the post office.

　　2．To achieve my goal，I overcame(克服) a series of unimaginable and challenging difficulties when young.

　　3．They will concentrate on teaching the basics of reading，writing and arithmetic(算术)．

　　4．We took the children to the circus yesterday afternoon.

　　5．The paintings were sold for absurd prices.

　　6．Having no choice but to let out cries of anger，she felt hopeless．

　　Ⅱ.拓展词汇

　　根据词性和汉语提示，写出下列单词。

　　1．amuse vt.娱乐，消遣；使愉快

　　→amused adj.愉快的；被逗乐的

　　→amusing adj.令人愉快的；有趣的，好玩的

　　→amusement n．娱乐，消遣

　　2．identify vt.识别，鉴定

　　→identification n．鉴别，身份证明→identity n．身份

　　3．acquaint vt.使熟悉，使认识

　　→acquainted adj.熟悉的，知晓的

　　→acquaintance n．泛泛之交，熟人；略有交情，(与某人)认识

　　Ⅲ.补全短语

根据提示补全下列短语。