LESSON 9 a cold welcome
    1.crowd n.人群
    in the crowd: 在人群里 I spotted him in the crowd.
    a crowd of people:沒有秩序的人群，擁擠的人群
    a group of people:有秩序的人群
    a large crowd of people/crowds of people:人山人海
    v.crowd 擁擠，擠滿
    2.hand n.（表或機(jī)器的）指針
    minute/second/hour hand:分/秒/時(shí)針
    Which is the oldest? --second hand
    因?yàn)閟econd hand還有“二手的，舊的”
    3.shout v.喊叫
    =call out 大聲喊叫；cry out:大聲哭喊；scream:尖叫
    4.in twenty minutes' time 20分鐘之后
    根據(jù)時(shí)態(tài)判別in表示的含義：如果是將來式，in+段時(shí)間表示一段時(shí)間以后
    minutes' 名詞所有格
    1.有生命的東西：my mother's;kit's;Tom's
    2.可以用來表達(dá)時(shí)間：an hour's time
    3.表示距離（在指路時(shí)常用）
    -How far is the school from here?
    -3 minutes' walk.
    5.分鐘的介詞：past：過了；to：沒到
    ...minutes past...前半小時(shí)
    ...minutes to...后半小時(shí)
    6.on:
    具體的某一天：on Friday/Dec 15th
    morning,afternoon,evening前有修飾詞：on Wednesday evening
    in:
    in the morning/afternoon,evening
    in a week;in January/Feb...
    in summer/spring/autumn/winter
    in 1992/1999
    at:
    at night;at noon;at five to twelve;at ten o'clock
    用的最多的是in，考的最多的是on
    until 直到……時(shí)候
    I can't entre for the sports meeting until tomorrow.
    from...to...
    Everyday we have English class from 8:30 to 11:30.
    during 在……期間
    in the holiday強(qiáng)調(diào)這段時(shí)間其中某一點(diǎn)時(shí)間，并不表示自始至終
    during the holiday 強(qiáng)調(diào)假期的從頭到尾