LESSON 57 Can I help you,Madam?
    1.seek out為固定短語，表示“找出”、“搜尋出”：
    He sought out the thief in the crowd.
    他在人群中找出了那個小偷。
    Seek him out quickly. I want to speak to him.
    快把他找出來。我想和他談一談。
    2.像eager, glad, pleased, sorry等描述感覺的形容詞作表語時后面往往跟不定式：
    They are all eager to come.
    他們都急于來。
    I’m pleased to work with you.
    我很高興能與你一起工作。
    3.現(xiàn)在分詞短語代替一個分句位于句首時，其否定形式是在它前面加上not, without或never等否定詞。這些詞有時可互換，有時則不可：
    Not/Without/Never hesitating for a moment, he ran after the thief.
    他沒有一絲猶豫便追趕那小偷。
    Not being able to open the door, I asked my neighbour for help.
    由于開不了門，我便向鄰居求援。
    4.With great difficulty, he climbed into the shop window to get the dress. 費了好大勁兒，他爬進櫥窗去取那件衣服。
    with在這里表示行為方式：
    With care, she put the vase on the shelf.
    她小心翼翼地把花瓶放在架子上。
    He lifted the box with ease/difficulty.
    他很輕松地/費勁地舉起那箱子。