请教两道题

qj94

1. how many minutes before 12 noon is it if 72 minutes ago it was twice as many minutes past 9 am?

2. Mark has half as many again as sally who has half again as many again as Mary. all have 209, how many does sally have?

主要是英文如何翻译啊。还有workout。谢谢

y12345678

1... 早上9点至现在之前72分钟的那个时刻之间的时间,  是现在至中午12点之间的时间的一半. 请问现在距离12点还有多少分钟?

2...一样东西, Mark拥有的数目是Sally的一半,Sally拥有的数目是Mary的一般.大家一共有209件这个东西,请问Sally有多少件?

qj94

y12345678 发表于 2017-6-3 13:07
1... 早上9点至现在之前72分钟的那个时刻之间的时间,  是现在至中午12点之间的时间的一半. 请问现在距离12 ...

第二道题这么翻译做出来是错的。

qj94

y12345678 发表于 2017-6-3 13:07
1... 早上9点至现在之前72分钟的那个时刻之间的时间,  是现在至中午12点之间的时间的一半. 请问现在距离12 ...

第一道也翻译的不对。

y12345678

解答

1)用分钟计时法,每天0:00计为0, 每过1个小时,加60分钟
这样9:00am = 540
12:00pm= 720

假设现在x

我们有
720-x=2(x-72-540)
x=648

换算成标准计时, 10:48am


2) Mark 有x件,  Sally有2x件,  Mary有4x件
所以
7x=209
x=29.8571428571除不尽,你是不是把数字抄错了.或者这个是公斤什么的
Sally有2x,也就是59.7142857143这么多

jga000

1. how many minutes before 12 noon is it if 72 minutes ago it was twice as many minutes past 9 am?
现在的72分钟前到早上9点的时间, 是现在到中午12点的时间的两倍。

方程解法：现在到12点有x分钟，现在的72分钟前，到9点有2x分钟，x+2x+72=3*60, x=36,所以答案是36分钟。

非方程解法：9点到12点一共有180分钟，180-72=108分钟分成三份，每份是36分钟，所以现在到12点占1份，就是36分钟。

2. Mark has half as many again as sally who has half again as many again as Mary. all have 209, how many does sally have?
Mark有的是Sally全部和Sally的一半，Sally有的是Mary的全部和Mary的一半。三个人一共有209个，Sally有多少个？

非方程解法：Mary 有1份， Sally有1+1/2=3/2份， Mark是3/2+3/2*1/2=9/4份，所以一共是1+3/2+9/4=19/4份，每一份有209/（19/4）=44个，Sally有44*3/2=66个

方程解法：Let Sally have x, then Mark has 3x/2, Mary has 2x/3,  x+3x/2+2x/3=209, x=66。

y12345678

qj94  + 1 答案错误

好吧,头疼

我就放弃啦

qj94

jga000 发表于 2017-6-3 13:26
1. how many minutes before 12 noon is it if 72 minutes ago it was twice as many minutes past 9 am?
...

1. how many minutes before 12 noon is it if 72 minutes ago it was twice as many minutes past 9 am?
现在的72分钟前到早上9点的时间, 是现在到中午12点的时间的两倍。

it was twice as many 这个it指的是什么？

qj94

jga000 发表于 2017-6-3 13:26
1. how many minutes before 12 noon is it if 72 minutes ago it was twice as many minutes past 9 am?
...

a has half as many again as b: a=1.5b
b has half again as many again as c: b=1.5c
为什么多了个again还是同样的意思

jga000

qj94 发表于 2017-6-3 13:55
1. how many minutes before 12 noon is it if 72 minutes ago it was twice as many minutes past 9 am? ...

how many minutes before 12 noon is it if 72 minutes ago it was twice as many minutes past 9 am?
现在的72分钟前到早上9点的时间, 是现在到中午12点的时间的两倍。


这里的it是指 the moment of 72 minutes ago
正常语序  ( the minutes of )the moment of 72 minutes ago past 9 am were twice as many as (the minutes ) it is now before 12 noon.

It is three times as far as if moving to a new house 20 kms further away to school as my current house to school.
=
How many kms from my current house to school is it if moving to a new house 20kms further away it is three times as far to school?

scott.songgps

第一题：感觉应该是144分钟

jga000

qj94 发表于 2017-6-3 13:59
a has half as many again as b: a=1.5b
b has half again as many again as c: b=1.5c
为什么多了个agai ...

Mark has half as many again as sally who has half again as many again as Mary.

Mark has half as many again as sally, Mark 有Sally的所有，还有(again)Sally的一半。所以Mark=3/2Sally
Sally has half again as many again as Mary, 第二个again和上面的用法是一样的，第一个again是指Mark的情况，又一次出现在Sally的情况。

Snow White wants to be as beautiful as Cinderella who again wants to be as beautiful as Mulan. again表示行为的一致性。

david72s

为啥出题要出成这样，把人绕晕吗？

qj94

jga000 发表于 2017-6-3 14:13
how many minutes before 12 noon is it if 72 minutes ago it was twice as many minutes past 9 am?
现 ...

这个加上as。。。。。我就明白了。谢谢

qj94

scott.songgps 发表于 2017-6-3 14:15
第一题：感觉应该是144分钟

时间点是对的，题目问的是距离noon的时间。呵呵

jga000

david72s 发表于 2017-6-3 14:22
为啥出题要出成这样，把人绕晕吗？

同意，文字游戏而已，并不是真的数学能力。

scott.songgps

(10：48-x)(x-9:00)=2:1
x=9:36
12:00-9:36=144

qj94

david72s 发表于 2017-6-3 14:22
为啥出题要出成这样，把人绕晕吗？

不是绕，是中文简单 。英文好复杂啊

qj94

jga000 发表于 2017-6-3 14:24
同意，文字游戏而已，并不是真的数学能力。

看来ss考试的英文很重要啊。

qj94

scott.songgps 发表于 2017-6-3 14:25
(10：48-x)(x-9:00)=2:1
x=9:36
12:00-9:36=144

那就错了啊

scott.songgps

感觉出题的人说的英文不是很清楚，好像是XXX补习社的题。
另外：中文是指12：00 吧？

scott.songgps

1. how many minutes before 12 noon is it?
1. How many minutes does it have before noon?
哪一个更正确？
many 用在可数名词前，it is 是不可数，如果谁能有更好的解释，学习了

jga000

scott.songgps 发表于 2017-6-3 14:55
1. how many minutes before 12 noon is it?
1. How many minutes does it have before noon?
哪一个更正确 ...

我觉得1更准确，it is 10 minutes before 9am. 这里的it是指的某个时刻，这个时刻是9点之前的10分钟，所以用单数。
或者可以说How many minutes are there from now to 9am?

有些时候has 是不能代替there is的，特别是主语是抽象概念的时候。

mr_hyn

1. how many minutes before 12 noon is it if 72 minutes ago it was twice as many minutes past 9 am?

这里 第一个it is，指的是离 12 点还有多少分钟，是一个时间区间。第二个 it was， 指的是 在72 分钟之前，还有多少分钟才到 12 点，是一个过去的时间区间。

2. Mark has half as many again as sally who has half again as many again as Mary. all have 209, how many does sally have?

意思是 Mark 比 Sally 多 50%，而 Sally 比Mary多50%.

half again as many/much: 意思是 One-and-a-half times as much or as many;

这里的混淆点是half again as many again 里面的两个again。第一个again指的是 50% more，第二个again 就是“再来一次”的通常意义，即mark和sally比一次，Sally和Mary又比了一次。


PS 这两道题，英语语法是没有任何问题的。

qj94

mr_hyn 发表于 2017-6-3 15:12
1. how many minutes before 12 noon is it if 72 minutes ago it was twice as many minutes past 9 am?

...

scott.songgps

qj94 发表于 2017-6-3 14:27
那就错了啊

刚才看成之后了，是48分钟
这样72分钟前是10点，距离到12和9是2：1.
（前提：我与出题的人想法一致）

bolinsun

你这是几年级的题啊 两道我都没看懂

melissawen

Mark

明河素月

题目测的是英文理解能力