Psychologically there are two dangers to be guarded against in
    old age. One of these is due absorption in the past. It does not __1__
    work to live in memories, in regrets for the good old days, or in __2__
    sadness about friends who are dead. One's thoughts must be directed
    to the future, and to things which there is something to be done. __3__
    This is not always easy; one's own past is a gradually increasing
    weight. It is easy to think for oneself that ont's emotions __4__
    are used to be more vivid than they are, and one's mind more __5__
    keen. If this is true it should be forgotten, and if it is forgotten it
    will probably not be true.
    The other thing to be avoided is clinging to youth in hope of __6__
    sucking vigour from its vitality. When your children are growing up __7__
    they want to live their own lives, and if you continue to be as
    interested in them as you were when they were young, you are likely to
    become a burden to them, except they are unusually callous. I do not __8__
    mean that one should be without interest in them, but one's interest
    should be contemplatory and, if possible, philanthropic, but not __9__
    unduly emotional. Animals become indifferent to their young as soon
    as their young can look after themselves, but human beings, owing
    to the length of infantry, find this difficult. __10__
    答案及解析:
    1.due-undue
    如果是due absoption，就沒(méi)有必要說(shuō)two dangers to guarded against，所以這里犯了語(yǔ)義顛倒的錯(cuò)誤。
    2.work-do
    work在這里用得不好，應(yīng)該為do，表示“能……”，work往往表示“行不行得通”，如：It does not work to employ two people. We need at least 5.
    3.^which-about
    這里缺少了介詞about，使先行詞things 和something to be done無(wú)法連接。
    4.for-to
    to think for oneself表示“為自己著想”，這這里顯然不是這個(gè)意思，應(yīng)改為to oneself 表示“自己想……”，類似于to say to oneself。
    5.are（used）-/
    be used to 表示“習(xí)慣于……”，而這里的意思是“過(guò)去曾經(jīng)……”，所以應(yīng)改為used to do。
    6.^hope-the
    詞組in the hope of 或 in hopes of 表示“懷著……的希望”。
    7.growing-grown
    be growing up 表示“在成長(zhǎng)的過(guò)程中”，而這里表示的是“當(dāng)孩子們長(zhǎng)大以后……”，所以應(yīng)改為are grown up。
    8.except-unless
    except表示“除了……之外”，在意思上不貼切，應(yīng)改為unless表示“除非……”。
    9.contemplatory-contemplative
    沒(méi)有contemplatory這個(gè)詞，有的是contemplative，表示“沉思的，冥想的”
    10.infantry-infancy
    infantry表示“步兵，步兵團(tuán)”，應(yīng)該為infancy，表示“幼年”。