（更新JJ）上海一战750（Q49 V42）

望辰莫及

更新JJ：数学：1.PS：10^32-32的各个位数相加等于几。

2.DS：F=ax^2+bx+c；a,b,c可能等于0也可能不等于0. 问ab=0?

（1）F（1）=F（-1）=0

（2）a*f(1)*f(-1)=0

3.PS-2)^-2n +(2)^-2n=?  注意-2的平方变成了正4，好像主要就考这个知识点

逻辑：1.那个TAX的题目，说通胀了，然后工资就少了，然后国家的税收并没有少，问为什么？我选的答案是雇主可以通过给员工一些受税收（这里通胀和税收之间好像是有个关系的，但是我想不起来了）影响小的payment来弥补工资的减少。（我的理解，于是人们的消费就不会变小，于是政府的税收不会少，因为商店的营业额上去了嘛，）

2.研究表明，当小孩在商店买玩具时，当他们拿着他们能够到的玩具时，相比于那些他们够不到但是想买的玩具，家长们更愿意买，所以商店为了增加玩具sales的方法是把所有玩具的柜台的高度都降到小孩能够得到的高度。问evaluate，我选的是：whether商店这样做会导致家长不带孩子去商店。

先说JJ吧，心路历程晚上夜深人静的时候写=。=

本来一回来能写出很多JJ，后来被叫出去逛马路了现在刚回来，尽量想吧。。。

数学：好难。。。有两道连题目都没看懂=。=有两道题目看懂了做不来=。=

1.PS：小A小B小C三个人画一副图，用掉颜料的效率分别是X, Y,  Z单位（忘了）每分钟，问三个人同时完成1副画要多少时间。反正就是1/(1/x+1/y+1/z)化简后事xyz/(xy+xz+yz) 我差点选xyz/(x+y+z) 大家注意啊=。=

2.DS：两个圆，一个圆心（0，0），半径r，另一个圆心(1,0)，半径R，然后问两个圆是否Intersect.

(1) R^2 + r^2=2(1-rR) 

(2)R^2-r^2=r  

这题做得时候有点赶时间，所以不知道自己做对没

3.PS：M和P是这样两个数，P是大于一的质数，roots of the 等式根号下x^2-mx-p=0都是正整数，问M-P等于？我也没时间算了。选了个2.答案好像是1，2，3，4，5

4.PS：什么算电熨斗的面积，题目完全没看懂。（有图,主要是图没看懂）

5.PS：说有ABCDEFGHI9个人要分到X和Y两组，每个组人数不超过6个，问ABCDEF分在一个组的概率。我选的是1/210，还有1/420这个答案，我个人认为就是这两个答案里面的一个。

6.DS：一个等差数列，d=3,问a100（下标）（好像是100吧，有点模糊） -1能不能被3整除。

（1）忘了

（2）a99不能被三整除

逻辑：

1.一个非盈利机构本来是不交税的，但是当地政府决定让他们交property tax以增加政府税收，即使这有可能驱使那些非盈利机构离开当地。问weaken，我选的是当地一些business留在当地的原因是有各种盈利机构的存在。

2.现在一下子想不起来了=。=

阅读：

1.我碰到了一篇GWD原文！GWD-28-Q3-Q6!!!!!!

2.讲story about 历史是通过口述的方式，一代代传下来，让我们了解社会的形成。但是这样子精确性降低，因为一方面受到讲述着的order of the social，一方面被一代代interpret后就可能Misinterpret了。第二段讲这也不一定，如果我们能够对一个事件有多角度的口述，especially when 这个讲的人和讲的事本身没有利害关系，那么就会精确很多。此外，我们如果只是想知道历史是否发生，而不是知道其背后的intention和culture meaning的话，口述还是很好的东西。

3.暂时想不起来了

语法：

1.考了平行 2.考了比较，3 three times the XX's rate，我选的是这个选项，就是一个东西的发展史国家rate的三倍，但是那个发展和rate不对等，所以不能用those或that of the XX's rate

作文：

1.AA：

38. The following appeared in the editorial section of a campus newspaper.

“Because occupancy rates for campus housing fell during the last academic year, so did housing revenues. To solve the problem, campus housing officials should reduce the number of available housing units, thereby increasing the occupancy rates. Also, to keep students from choosing to live off-campus, housing officials should lower the rents, thereby increasing demand.”

2.AI：87. “As technologies and the demand for certain services change, many workers will lose their jobs. The responsibility for those people to adjust to such change should belong to the individual worker, not to government or to business.” 

先这样吧。

38. The following appeared in the editorial section of a campus newspaper.

“Because occupancy rates for campus housing fell during the last academic year, so did housing revenues. To solve the problem, campus housing officials should reduce the number of available housing units, thereby increasing the occupancy rates. Also, to keep students from choosing to live off-campus, housing officials should lower the rents, thereby increasing demand.”

2.AI：87. “As technologies and the demand for certain services change, many workers will lose their jobs. The responsibility for those people to adjust to such change should belong to the individual worker, not to government or to business.” 

先这样吧。

38. The following appeared in the editorial section of a campus newspaper.

“Because occupancy rates for campus housing fell during the last academic year, so did housing revenues. To solve the problem, campus housing officials should reduce the number of available housing units, thereby increasing the occupancy rates. Also, to keep students from choosing to live off-campus, housing officials should lower the rents, thereby increasing demand.”

2.AI：87. “As technologies and the demand for certain services change, many workers will lose their jobs. The responsibility for those people to adjust to such change should belong to the individual worker, not to government or to business.” 

先这样吧。

38. The following appeared in the editorial section of a campus newspaper.

“Because occupancy rates for campus housing fell during the last academic year, so did housing revenues. To solve the problem, campus housing officials should reduce the number of available housing units, thereby increasing the occupancy rates. Also, to keep students from choosing to live off-campus, housing officials should lower the rents, thereby increasing demand.”

2.AI：87. “As technologies and the demand for certain services change, many workers will lose their jobs. The responsibility for those people to adjust to such change should belong to the individual worker, not to government or to business.” 

先这样吧。

[此贴子已经被作者于2009-4-11 11:05:01编辑过]

wjy_slq

···恭喜  最近高分很多奥···

LinsonLi

楼主好强悍

如果数学分再高点，那简直太强了！！赞

wjy_slq

请问GWD原题是鸟会飞的两种理论么？

xenia734

牛人出现了！！！

恭喜楼主，verbal好高啊。。。。

请问楼主做GWD时verbal部分一般错几个呢....想参考一下

jet_chan

lz，GWD原题是不是这个：

      Social learning in animals is said to occur when direct or indirect
social interaction facilitates the acquisition of a novel behavior.  It usually takes the form of an experienced
animal (the demonstrator) performing a behavior such that the naïve animal (the
observer) subsequently expresses the same behavior sooner, or more completely,
than it would have otherwise.  One example
of social learning is the acquisition of preferences for novel foods.

        

      Some experiments have suggested that
among mammals, social learning facilitates the identification of beneficial
food items, but that among birds, social learning helps animals avoid toxic
substances. For example, one study showed that when red-wing blackbirds
observed others consuming a colored food or a food in a distinctly marked container
and then becoming ill, they subsequently avoided food associated with that
color or container.  Another experiment
showed that house sparrows consumed less red food after they observed others
eating red food that was treated so as to be noxious.  Studies on nonavian species have not produced
similar results, leading researchers to speculate that avian social learning
may be fundamentally different from that of mammals.

        

     
But Sherwin’s recent experiments with domestic hens do not support the notion
that avian social learning necessarily facilitates aversion to novel foods that
are noxious or toxic.  Even when demonstrator
hens reacted with obvious disgust to a specific food, via vigorous head shaking
and bill wiping, there was no evidence that observers subsequently avoided
eating that food. Sherwin’s research team speculated that ecological or social
constraints during the evolution of this species might have resulted in there being
little benefit from the social learning of unpalatability, for instance, selective
pressures for this mode of learning would be reduced if the birds rarely encountered
noxious or toxic food or rarely interacted after eating such food, or if the
consequences of ingestion were minimal. In a related experiment, the same researchers
showed that if observer hens watched demonstrator hens react favorably to food of
a particular color, then observer hens ate more food of that color than they ate
of food of other colors. These results confirmed that avian species can develop
preferences for palatable food through social learning.

Q3:

                    

The primary purpose of
the passage is to discuss the

                    

A.     
techniques used in certain experiments on social learning in birds

                    

B.      
reasons for the differences between social learning in birds and in
mammals

                    

C.     
question of how social learning manifests itself in birds

                    

D.     
basis for a widespread belief about a difference in behavior
between birds and mammals

                    

E.      
possible reasons why birds may or may not learn from each other in
a particular way

                    

-------------------------------------------------------------------

                    

Q4:

                    

According to the passage,
which of the following is true of the experiments on domestic hens conducted by
Sherwin’s research team?

                    

                       

                    

A.     
Only a small number of observer hens appeared to learn to avoid
food that was demonstrated by other hens to be noxious.

                    

B.      
Observer hens ingested food preferentially only after numerous
instances of witnessing demonstrator hens preferentially ingest that type of
food.

                    

C.     
Observer hens appeared unable to recognize when demonstrator hens
found a particular food especially palatable.

                    

D.     
Demonstrator hens reacted adversely to ingesting certain novel
foods.

                    

E.      
Demonstrator hens altered their behavior less obviously in response
to noxious foods than in response to highly palatable foods.

                    

--------------------------------------------------------------------

                    

Q5:

                    

It can be inferred that the author
of the passage would be most likely to agree with which of the following
statements regarding the results of the recent experiments conducted by
Sherwin’s research team?

                    

A.     
The
experiments demonstrate that social learning in avian species facilitates the
identification of noxious or toxic foods.

                    

B.      
The
experiments suggest that social learning has made avian species less adept than
nonavian species at learning to prefer beneficial foods and avoid noxious and
toxic foods.

                    

C.     
The
experiments undermine the notion that most avian species have evolved in
environments where there is little benefit to the social learning of
unpalatability.

                    

                        

                    
                    

D.     
The
experiments suggest that the acquisition of food preferences in avian species
is largely unaffected by social learning.

                    

E.      
The experiments show that social learning in avian species can
promote the preferential consumption of beneficial foods but do not support the
claim that social learning in avian species promotes the avoidance of noxious
or toxic foods.

题目也是一样的吗？

望辰莫及

以下是引用wjy_slq在2009-4-10 17:54:00的发言：
请问GWD原题是鸟会飞的两种理论么？

我后面写了GWD题号了，就是讲动物的social learning的，观察动物对别人吃东西后的反应的表现

，坏的不吃，好的就吃。

望辰莫及

以下是引用jet_chan在2009-4-10 17:58:00的发言：
lz，GWD原题是不是这个：

      Social learning in animals is said to occur when direct or indirect
social interaction facilitates the acquisition of a novel behavior.  It usually takes the form of an experienced
animal (the demonstrator) performing a behavior such that the naïve animal (the
observer) subsequently expresses the same behavior sooner, or more completely,
than it would have otherwise.  One example
of social learning is the acquisition of preferences for novel foods.

  

      Some experiments have suggested that
among mammals, social learning facilitates the identification of beneficial
food items, but that among birds, social learning helps animals avoid toxic
substances. For example, one study showed that when red-wing blackbirds
observed others consuming a colored food or a food in a distinctly marked container
and then becoming ill, they subsequently avoided food associated with that
color or container.  Another experiment
showed that house sparrows consumed less red food after they observed others
eating red food that was treated so as to be noxious.  Studies on nonavian species have not produced
similar results, leading researchers to speculate that avian social learning
may be fundamentally different from that of mammals.

  

     
But Sherwin’s recent experiments with domestic hens do not support the notion
that avian social learning necessarily facilitates aversion to novel foods that
are noxious or toxic.  Even when demonstrator
hens reacted with obvious disgust to a specific food, via vigorous head shaking
and bill wiping, there was no evidence that observers subsequently avoided
eating that food. Sherwin’s research team speculated that ecological or social
constraints during the evolution of this species might have resulted in there being
little benefit from the social learning of unpalatability, for instance, selective
pressures for this mode of learning would be reduced if the birds rarely encountered
noxious or toxic food or rarely interacted after eating such food, or if the
consequences of ingestion were minimal. In a related experiment, the same researchers
showed that if observer hens watched demonstrator hens react favorably to food of
a particular color, then observer hens ate more food of that color than they ate
of food of other colors. These results confirmed that avian species can develop
preferences for palatable food through social learning.

Q3:

     

The primary purpose of
the passage is to discuss the

     

A.     
techniques used in certain experiments on social learning in birds

     

B.      
reasons for the differences between social learning in birds and in
mammals

     

C.     
question of how social learning manifests itself in birds

     

D.     
basis for a widespread belief about a difference in behavior
between birds and mammals

     

E.      
possible reasons why birds may or may not learn from each other in
a particular way

     

-------------------------------------------------------------------

     

Q4:

     

According to the passage,
which of the following is true of the experiments on domestic hens conducted by
Sherwin’s research team?

     

                       

     

A.     
Only a small number of observer hens appeared to learn to avoid
food that was demonstrated by other hens to be noxious.

     

B.      
Observer hens ingested food preferentially only after numerous
instances of witnessing demonstrator hens preferentially ingest that type of
food.

     

C.     
Observer hens appeared unable to recognize when demonstrator hens
found a particular food especially palatable.

     

D.     
Demonstrator hens reacted adversely to ingesting certain novel
foods.

     

E.      
Demonstrator hens altered their behavior less obviously in response
to noxious foods than in response to highly palatable foods.

     

--------------------------------------------------------------------

     

Q5:

     

It can be inferred that the author
of the passage would be most likely to agree with which of the following
statements regarding the results of the recent experiments conducted by
Sherwin’s research team?

     

A.     
The
experiments demonstrate that social learning in avian species facilitates the
identification of noxious or toxic foods.

     

B.      
The
experiments suggest that social learning has made avian species less adept than
nonavian species at learning to prefer beneficial foods and avoid noxious and
toxic foods.

     

C.     
The
experiments undermine the notion that most avian species have evolved in
environments where there is little benefit to the social learning of
unpalatability.

     

      

     
     

D.     
The
experiments suggest that the acquisition of food preferences in avian species
is largely unaffected by social learning.

     

E.      
The experiments show that social learning in avian species can
promote the preferential consumption of beneficial foods but do not support the
claim that social learning in avian species promotes the avoidance of noxious
or toxic foods.

题目也是一样的吗？

Q3:

     

The primary purpose of
the passage is to discuss the

     

A.     
techniques used in certain experiments on social learning in birds

     

B.      
reasons for the differences between social learning in birds and in
mammals

     

C.     
question of how social learning manifests itself in birds

     

D.     
basis for a widespread belief about a difference in behavior
between birds and mammals

     

E.      
possible reasons why birds may or may not learn from each other in
a particular way

     

-------------------------------------------------------------------

     

Q4:

     

According to the passage,
which of the following is true of the experiments on domestic hens conducted by
Sherwin’s research team?

     

                       

     

A.     
Only a small number of observer hens appeared to learn to avoid
food that was demonstrated by other hens to be noxious.

     

B.      
Observer hens ingested food preferentially only after numerous
instances of witnessing demonstrator hens preferentially ingest that type of
food.

     

C.     
Observer hens appeared unable to recognize when demonstrator hens
found a particular food especially palatable.

     

D.     
Demonstrator hens reacted adversely to ingesting certain novel
foods.

     

E.      
Demonstrator hens altered their behavior less obviously in response
to noxious foods than in response to highly palatable foods.

     

--------------------------------------------------------------------

     

Q5:

     

It can be inferred that the author
of the passage would be most likely to agree with which of the following
statements regarding the results of the recent experiments conducted by
Sherwin’s research team?

     

A.     
The
experiments demonstrate that social learning in avian species facilitates the
identification of noxious or toxic foods.

     

B.      
The
experiments suggest that social learning has made avian species less adept than
nonavian species at learning to prefer beneficial foods and avoid noxious and
toxic foods.

     

C.     
The
experiments undermine the notion that most avian species have evolved in
environments where there is little benefit to the social learning of
unpalatability.

     

      

     
     

D.     
The
experiments suggest that the acquisition of food preferences in avian species
is largely unaffected by social learning.

     

E.      
The experiments show that social learning in avian species can
promote the preferential consumption of beneficial foods but do not support the
claim that social learning in avian species promotes the avoidance of noxious
or toxic foods.

题目也是一样的吗？

是这个，题目好像一样，但是至少Q4题目和选项一样，当时这道题有争议，我就选了A。大家仅供参考。。。

望辰莫及

以下是引用xenia734在2009-4-10 17:55:00的发言：

牛人出现了！！！

恭喜楼主，verbal好高啊。。。。

请问楼主做GWD时verbal部分一般错几个呢....想参考一下

10个吧。好点8个，不好点13个，争议题不算我错的那种。