Sailing to success(快乐备考,携手同行)

wei_wangyan

Jojo太棒了！！！

撒花。。。

lxzjojo

偶想先回忆完机经，怕过久了就不记得鸟。。。刚看了上面有几个问题偶会的，回头来帮忙，哈~~

wei_wangyan

Jojo今天肯定超忙，盼着你的心得快点出炉，偶还有一个多月就考，有什么错误做法，还能在你的指点下及时修正哈。

yaoyao的数学题太难鸟，等着Jojo来帮忙吧，大家来看看这个语法吧？嘿嘿

这道题偶是选的D，做的时候还觉得挺懂的，回来再看就不知道是怎么回事了，可能是看讨论时太没主心骨了，东倒西歪，一会就没了方向。

GWD-8-Q41: 答案给的是C，争议选项是D.

When drive-ins were at the height of their popularity in the late 1950’s, some 4,000 existed in the United States, but today there are less than one-quarter that many.

1. there are less than one-quarter that many

2. there are fewer than one-quarter as many

3. there are fewer than one-quarter of that amount

4. the number is less than one-quarter the amount
5. it is less than one-quarter of that amount

yaoshuming

我觉得D选项的致命错误是the number is less than one-quarter the amount，中间该有of的

而且，the number没有指代对象，some 4,000 existed in the United States是插入句，一般主句里的代词指代不了插入语的内容。

C选项的that amount指代的内容应该是drive-ins'number

yaoshuming

52. w,x,y,z on a line from left to right,ask if these four number products ( times them together) is positive
             a) w times x is positive
             b) y times z is negative

 

又是一道数学题，不懂！！！！！！！！！

yaoshuming

25.一个工人,生产<=500 个产品时,工资为110,大于500时, 工资为0.22*产品数,从周一到周二一个生产了625个,求工资?

(1)第一天生产的少于500个

(2)每天生产的大于125个

答案：B（DS题，有待补充）

还有这个．．．．．．不看数学鸟～～气死我了

pplcc

祝贺你啊，jojo，真替你高兴！天天来看你们的帖子，沾点喜气！呵呵，偶下周考！

wei_wangyan

以下是引用yaoshuming在2006-12-21 15:55:00的发言：

我觉得D选项的致命错误是the number is less than one-quarter the amount，中间该有of的

而且，the number没有指代对象，some 4,000 existed in the United States是插入句，一般主句里的代词指代不了插入语的内容。 这个可靠吗?

C选项的that amount指代的内容应该是drive-ins'number

如果选C,那其中的比较对象对等吗? there are fewer(drive-ins) than one-quarter of that amount,  这不成了人和数字比较??

wei_wangyan

以下是引用yaoshuming在2006-12-21 16:16:00的发言：

25.一个工人,生产<=500 个产品时,工资为110,大于500时, 工资为0.22*产品数,从周一到周二一个生产了625个,求工资?

(1)第一天生产的少于500个
                

(2)每天生产的大于125个
                

答案：B（DS题，有待补充）

还有这个．．．．．．不看数学鸟～～气死我了

 

偶觉得这个题是应该选B，括号里的有待补充是啥意思？

条件（1）不充分，因为存在两种情况：“第一天<125个，第二天则>500个”和“第一天>=125个，第二天<=500个”，在这两种情况下的工资是不同的（前者的工资制都是110的那种，后者是两种各一）。

条件（2）充分，每天生产都大于125，不存在任何“一天>500个”的情况，所以两天都是相同的工资制（都是110的那种）。

啰里8嗦地，不知道说清楚没有。

lxzjojo

以下是引用wei_wangyan在2006-12-20 20:15:00的发言：

GWD-8-Q33

In order to withstand tidal currents, juvenile horseshoe crabs frequently burrow in the sand. Such burrowing discourages barnacles from clinging to their shells. When fully grown, however, the crabs can readily withstand tidal currents without burrowing, and thus they acquire substantial populations of barnacles. Surprisingly, in areas where tidal currents are very weak, juvenile horseshoe crabs are found not to have significant barnacle populations, even though they seldom burrow.

Which of the following, if true, most helps to explain the surprising finding?

A. Tidal currents do not themselves dislodge barnacles from the shells of horseshoe crabs.
     

B. Barnacles most readily attach themselves to horseshoe crabs in areas where tidal currents are weakest.

C. The strength of the tidal currents in a given location varies widely over the course of a day.

D. A very large barnacle population can significantly decrease the ability of a horseshoe crab to find food.
     

E. Until they are fully grown, horseshoe crabs shed their shells and grow new ones several times a year.[E]

这个题,偶还是不明白为什么D不对啊?!那个barnacle多了会导致crab找食物困难,所以barnacle就少了.这不挺好的原因吗?(偶是明白E为什么正确的)

D不对，因为那些B附着在C身上是一个客观事实，不是C自己可以决定的。如果它可以自己选择的话，谁会让那些讨厌的东东老是附在自己身上啊~

所以答案只能是E，因为C要换壳，哈~这也是一个客观事实，同样是C无法改变滴，但却会导致B变少啦!