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标题: 关于estimate的用法？ [打印本页]

作者: juan 时间: 2004-3-16 10:41
标题: 关于estimate的用法？

Paleontologists believe that fragments of a primate jawbone unearthed in Burma and estimated at 40 to 44 million years old provide evidence of a crucial step along the evolutionary path that led to human beings. Dfficeffice" />

(A) at 40 to 44 million years old provide evidence of

(B) as being 40 to 44 million years old provides evidence of

(D) to be 40 to 44 million years old provide evidence of

(E) as 40 to 44 million years old provides evidence of what was

答案是D，我选对了。但是我不太清楚在什么情况下用estimate...at,什么情况下用estimate to be....？有人能帮忙解释一下吗？

谢谢了。

作者: ecsniffer 时间: 2004-3-16 10:58
不懂

顶

这难道又是ets的偏好？

作者: freedownload 时间: 2004-3-16 11:47
能告诉我这道题在新东方的语法讲义的哪一套吗，我记得我做过笔记在旁边，但现在找不到在哪里。

作者: juan 时间: 2004-3-16 11:51
在新东方讲义的第5套的第14题。等着看你的笔记哦。

作者: freedownload 时间: 2004-3-16 12:01
我的笔记记录的是：estimate有两种用法：

1，be estimated at+多少钱（估计多少钱的意思）

2，be estimated to be sth.

作者: juan 时间: 2004-3-16 12:03
怎么和我的新东方笔记一模一样啊？你是不是也是在Toronto的新东方上过的呀？我觉得新东方的笔记很含糊而且太绝对了。

作者: weiyu 时间: 2004-3-16 13:12

Estimatefficeffice" />

Verb

GRE/GMAT/LSAT CR, RC

Estimate that…

Estimate sth

The projected total of corporate contracts with minority businesses for the early 1980’s is estimated to be over 53 billion per year with no letup anticipated in the next decade.

a lizard was recently found that is estimated to be 340 million years old.

M-W

ESTIMATE implies a judgment, considered or casual, that precedes or takes the place of actual measuring or counting or testing out **estimated the crowd at two hundred**.

是否可以说estimate to be+时间；estimate at+数量?

Estimate还可以作名词

作者: juan 时间: 2004-3-16 14:06
我看过这样一个例子：I estimated his age at 40.我觉得是不是用被动时，就是be estimated to be...用主动态时，就是estimate at呀？

作者: tianwan 时间: 2004-3-16 16:53
ffice

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estimated to be, estimated at:

The age of that fragments of a primate jawbone is estimated at/to be 40 to 44 million years. ~~Old~~

That fragments of a primate jawbone is estimated to be 40 to 44 million years old.

His age is 35. -> His age is estimated at/to be 35. / I estimate his age at/to be 35.

He is 35 (years old). -> He is estimated to be 35 (years old).

to be更加安全，任何时候都可以用。Estimate是典型的带不定式作宾语补语的动词。

Estimate sth at sth是惯用法。只在特定的场合下使用。

作者: mariezhu 时间: 2004-3-16 17:11
呵呵，我在新东方上课是老师讲的也是当表示价格时是be estimated at, 其它的大多数都是be estimated to be

可能有点太绝对，不过可以借鉴。我记得我上法语课时，老师第一节课就说法语有无数规则，但是规则也总有例外。：）

作者: weiyu 时间: 2004-3-16 22:29
After refer to the M-W, Longman, Oxford and GRE/GAMT/LSAT CR,RC, I extract almost all kinds of use of "Estimate". Appreciate futher discussion

Estimate总结，请指教fficeffice" />

Verb

Estimate that…

Estimate sth

Estimate for: to calculate the probable cost of doing a job, such as building or repairing sth. Eg. (I asked three building firms to estimate for the repairs to the roof. ) Longman

The projected total of corporate contracts with minority businesses for the early 1980’s is estimated to be over 53 billion per year with no letup anticipated in the next decade. .(GRE/GMAT/LSAT RC,CR)

a lizard was recently found that is estimated to be 340 million years old.(GRE/GMAT/LSAT RC,CR)

The value of the painting was estimated at several thousand pounds (Longman Dictionary 被动语态＋at)

The firm estimated the cost of the work at $800 (Oxford)

I estimate his income at/ to be about $5000 (Oxford)

ESTIMATE implies a judgment, considered or casual, that precedes or takes the place of actual measuring or counting or testing out **estimated the crowd at two hundred**.

Summary: 是否可以说estimate to be+时间；estimate at+数量/钱数? 除了牛津的一个例句用了estimate at/to be+钱数，基本都是estimate at+钱数（毕竟Oxford在GMAT准备中应当放在次要位置，非美国字典）

Estimate还可以作名词

Estimated作adj: The movie cost an estimated $25 million to make (Longman)

作者: ecsniffer 时间: 2004-3-17 00:08
weiyu,

这里

estimate to be后面加的是金钱呀~~

作者: juan 时间: 2004-3-17 00:31
看来好象没什么特别的用法规则啊？

作者: tianwan 时间: 2004-3-17 09:38
我的例子应该已经说得很清楚啦？！ffice

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在is estimated句型中，age, cost，price,expenditure等做主语，用at, to be都行：The cost is estimated at/to be 100$. 注意：可不可以用at关键是看is estimated前面的东东（what is estimated to be/at），或estimate后面的东东(I estmiate what to be/at)。估计任何东东数字的属性，如果estimate 属性（age,cost,price, The price of the gadget is estimated at 10 $.）, 可以用at/to be；如果estimate该东东，即属性的主体（如有该age的人或化石，该price的商品The gadget is estimated to be 10$）则只能用to be. The price of the gadget是The gadget的属性。

作者: weiyu 时间: 2004-3-17 14:42
讲的透彻，顶

作者: ecsniffer 时间: 2004-3-17 15:02
coooooooooool

thks, tianwan!!

作者: herway 时间: 2008-5-27 16:53

厉害！

作者: yeye0130 时间: 2010-11-2 23:49
The projected total of corporate contracts with minority businesses for the early 1980’s is estimated to be over 53 billion per year with no letup anticipated in the next decade.
那如果是这个题目的话，还有选项是estimated at的话，究竟选to be 还是at???

作者: Mrfish 时间: 2011-7-19 21:45
就需要这个, THX!

作者: Mrfish 时间: 2011-7-19 21:45
就是需要这个，THX!

作者: aqiu41 时间: 2011-11-4 19:04
tianwan讲得太棒了！

作者: cuteyaoyao 时间: 2013-5-8 17:50
谢谢！：）

作者: cuteyaoyao 时间: 2013-5-15 09:24

tianwan 发表于 2004-3-17 09:38
我的例子应该已经说得很清楚啦？！在is estimated句型中，age, cost，price,expenditure等做主语，用at, t ...

Thank you! 多谢解答！

作者: nieyimin 时间: 2013-9-4 12:37
顶~ 可以和另外一个帖子一起看 http://forum.chasedream.com/thread-786318-1-1.html

作者: AurelieL 时间: 2016-7-21 20:24
顶！！！

作者: Jiegu 时间: 2016-10-29 13:32
曼哈顿语法第六版page 288页：
estimate的正确用法：1. she ESTIMATES the cost TO BE ten dollars. 2. the cost IS ESTIMATED TO BE ten dollars.
错误用法：she ESTIMATES the coast AT ten dollars.

所以感觉estimate at 不能加钱吧

作者: Fantazindy 时间: 2017-6-7 12:12
tianwan同学讲得很好，然而可能是规则有了变化，第六版Manhattan SC中确实明确列出she ESTIMATES the cost AT ten dollars.是错误用法
希望有NN来解答下

作者: 边缘日记 时间: 2018-5-7 21:58
estimate at +具体的数字
estimate to be+一个范围

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