补充No.31

browse · 发表于 2003-12-19 20:11:00

31.It may someday be worthwhile to try to recover uranium from seawater, but at present this process is prohibitively expensive.
(A) It may someday be worthwhile to try to recover uranium from seawater
(B) Someday, it may be worthwhile to try and recover uranium from seawater
(C) Trying to recover uranium out of seawater may someday be worthwhile C
(D) To try for the recovery of uranium out of seawater may someday be worthwhile
(E) Recovering uranium from seawater may be worthwhile to try to do someday

Key: A
那位分析一下，why B,C are wrong?

dreadpower · 发表于 2003-12-19 22:02:00

个人看法：
选项B：try and recover uranium from seawater，是try和 recover uranium from seawater（有一天尝试//和//从水中获得uranium是值得的）并列呢，还是try和 recover （有一天尝试uranium从水中并获得uranium从水中）并列？？但是无论怎么并列，意思上都讲不通
不如A意思上好

选项C：out of 不如from意思上好，且recorver from是习语。且这个表达主语过长，不如使用形式主语好

browse · 发表于 2003-12-19 23:44:00

以下是引用dreadpower在2003-12-19 22:02:00的发言：
个人看法：
选项B：try and recover uranium from seawater，是try和 recover uranium from seawater（有一天尝试//和//从水中获得uranium是值得的）并列呢，还是try和 recover （有一天尝试uranium从水中并获得uranium从水中）并列？？但是无论怎么并列，意思上都讲不通
不如A意思上好

选项C：out of 不如from意思上好，且recorver from是习语。且这个表达主语过长，不如使用形式主语好

Thanks.

jarod · 发表于 2004-2-23 13:39:00

以下是引用browse在2003-12-19 20:11:00的发言：
31.It    may    someday    be    worthwhile    to    try    to    recover    uranium    from    seawater,    but    at    present    this    process    is    prohibitively    expensive.
(A)    It    may    someday    be    worthwhile    to    try    to    recover    uranium    from    seawater
(B)    Someday,    it    may    be    worthwhile    to    try    and    recover    uranium    from    seawater
(C)    Trying    to    recover    uranium    out    of    seawater    may    someday    be    worthwhile    C
(D)    To    try    for    the    recovery    of    uranium    out    of    seawater    may    someday    be    worthwhile
(E)    Recovering    uranium    from    seawater    may    be    worthwhile    to    try    to    do    someday

Key:    A
那位分析一下，why    B,C    are    wrong?

chasemba · 发表于 2004-9-9 16:27:00

It 指代什么呢？

rhod · 发表于 2004-9-9 17:00:00

It is ... to do sth. it是形式主语，指代的是实际主语，后面的不定式。

类似还有, it is ... that ... .这里指代that从句.

chasemba · 发表于 2004-9-9 21:22:00

原来如此啊，多谢版主

but10 · 发表于 2005-5-29 15:52:00

句型

it is worthwhile to do

Laurencecoco · 发表于 2005-8-15 20:53:00

try 和 recover 不能并列，因为worthwhile的是try to recover这个动作, 而不是try 和recover 这两个动作

momoyu · 发表于 2005-10-9 22:06:00

再问一下C就是因为out of 不对?

E为何错?是"worthwile to try to do"罗嗦？

补充No.31

补充No.31

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