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5 . It was not until 1920 ____ regular radio broadcast began . A . while B . which C . that D . since 答案：BDBAC 二、学海导航 【学法指要】 单元重点词汇点拨 1.fly苍蝇 This kind of disease is caused by flies . 〖点拨〗fly作动词的常见搭配有：fly nonstop from Shanghai to New York从上海直飞纽约。fly a kite放风筝。fly from从……逃亡。fly at攻击(不用被动语态)。let fly (at) 射击 2. absence不在;缺席 His absence from school was caused by illness . 他缺课是因为生病。 〖点拨〗absence为不可数名词，但是，在表达“一次缺席或者不在”时是可数名词。如：He made up a wonderful story to explain his several absences . He returned after an absence of twenty minutes . 注意：absence的形容词是absent 。常见搭配有：during one’s absence某人不在时。be absent from school ( work , home ) 没上学(不上班，不在家)。 3. truth真相;实际情况 The whole truth has come out . 真相已水落石出。 〖点拨〗truth to tell you = to tell (you ) the truth说真的。这是个固定词组，在句中作状语。如：To tell you the truth , he stole books from the bookstore . 4. charge费用;价钱;索价 What are your charges for the room ? 住房费是多少 ? The exhibition is open to the public without charge . 〖点拨〗charge sb + 钱 + for sth因……收费……。How much do you charge for …? ……多少钱 ?如：The hotel charged me 50 yuan for a room for the night . How much do you charge for a haircut ? 5. determine决定;决心 We determine to buy a computer . 〖点拨〗be determined to do = make up one’s mind to do下决心干…… 。 6. permit许可;执照;营业证;允许 You can’t enter the research center without a permit . 〖点拨〗permit sb to do允许某人干……。permit doing允许干……。如： We don’t permit smoking here . 注意：permit常用在独立主格结构中。如：Time permitting , we’ll have a meeting this evening . = If time permits , … 另外，注意permit的现在分词、过去式和过去分词要双写词尾：permitting , permitted 。 7. prison监狱 She was sentenced to two years in pri (责任编辑：admin) |