Unit 1 Making a difference

3. what did hawking explain in the book ?
4. according to hawking, how do people misunderstand science?
5. what are the basic steps of the scientific method?
6. what is it that hawking doesn’t like about his speech computer?
step iii language points
there didn't seem much point in working on my phd—i didn't expec to survive that long•
取得博士學(xué)位對(duì)我來說沒有什么意義，我沒有期望活那么久。
phd(doctor of philosophy ) 指“博士學(xué)位”
there is no point in doing sth.表示“做某事沒有作用或沒有意義”。
例：there is no point in arguing further.
    繼續(xù)爭(zhēng)執(zhí)下去沒有意義了。
    there is no point in protesting.it won’t help much.
    抗議沒有什么用處，于事無補(bǔ)。
    that在此處為副詞，意為“那么”，可以修飾形容詞。this也有此用法。
    例：i didn't expect he was that rude.
    我沒料到他會(huì)那么粗魯。
    i have never been out this late before.
    我從未在外面呆到這么晚過。
    please cut my hair about this much.
    請(qǐng)把我的頭發(fā)剪掉這么長(zhǎng)。
    4.yet two years had gone by and i was not that much worse.
    但兩年過去了，我的情況卻沒那么糟糕。
    go by意思是“(時(shí)間)過去”。
    例：time went by so quickly.we are already at the end of our summer holiday.
    時(shí)間過得真快，轉(zhuǎn)眼我們已經(jīng)要結(jié)束暑假了。
    thirty years went by and her hair was beginning to turn gray.
    三十年過去了，她的頭發(fā)開始變白了。
    5.in fact，things were going rather well for me and i had gotten engaged to a very nice girl，jan wilde.
    事實(shí)上，事情發(fā)展得還挺順利。我和一位非常好的女孩簡(jiǎn)•懷爾得訂婚了。
    get/be engaged to sb.“與某人訂婚”
    例：did you hear they have got engaged last month?
    你有沒有聽說他們上個(gè)月訂婚的消息?
    tom got engaged to mary，whom he had met on the train.
    湯姆和瑪麗訂婚了，他們?cè)诨疖嚿险J(rèn)識(shí)的。
    be engaged in(on)+n./doing sth.從事(工作)的，忙于……的
例：she was engaged in protecting wild birds.
她從事保護(hù)野生鳥類的工作。
right now i’m engaged.
我現(xiàn)在正忙著。
be engaged (電話等)通話中的，占線中的，相當(dāng)于美國(guó)英語的busy.
例：the line/number is engaged。線路被占用。
engagement n.訂婚(to)
例：announce one's engagement to…宣布與…訂婚
    break off one's engagement解除婚約，解約