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高二英语教案:第十单元重、难点问答


    1. How does nature form a danger to people in the world and how can science help reduce that threat?
    [问] reduce的主要用法有哪些?
    [答] reduce意为\"把......减少\"、\"降低(价格)\"、\"缩小(程度、尺寸等)\",是及物动词。例如:
    She reduced her weight by 6 kilograms. 她的体重减轻了6公斤。
    The bike was reduced from 300 yuan to 200 yuan. 这辆自行车的价格从300元降到200元。
    You must reduce your expenses. 你必须减少你的开支。
    reduce还表示\"使成为\"、\"使处于(某种状态)\",多用于被动语态,且与介词to连用。例如:
    The house was reduced to ashes. 房子被烧成灰烬。
    In the past, she was reduced to begging. 在过去,她被逼得去讨饭。
    2. Some people got into a total panic, when the typhoon pulled the roofs off their houses and cars went up in the air.
    [问] get into a panic表示什么意思?
    [答] get into a panic意为\"进入恐慌状态\",是固定搭配,可与about连用,引出原因。例如:
    They got into a panic about the fire in the building. 他们因大楼起火而变得慌乱起来。
    He got into a panic when he thought he\'d forgotten the passport. 他想起忘了带护照时,惊慌起来。
    3. The sight of it awoke the scientist in my uncle to go and see it from closer at hand.
    [问] at hand能用by hand替代吗?
    [答] 不能。 at hand意为\"在近处\",是介词短语,而by hand则表示\"用手\"。例如:
    We live close at hand. 我们住在附近。
    Fortunately there was someone at hand. 幸好附近有人。
    This desk was made by hand. 这张桌子是手工制作的。
    at hand还表示\"在手边\"、\"即将来到\",作状语或表语。
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