gwd 30-20

titatita

up

superPPDD

顶

jinni

感觉从句意上来说还是A比较好，整个句子的意思是说磁场和pacemakers会相互作用，而这种相互作用会带来missed or irregular heartbeats, nausea, breathlessness, dizziness, and even fainting等问题，

如果选D，主语变成了the magnetic fields and this interaction，逻辑意思不符合。

当当84

Q20:

Researchers have announced that the magnetic fields emitted by one manufacturer’s security surveillance system, of which type there are 200,000 worldwide, can interfere with pacemakers and that this interaction can bring on missed or irregular heartbeats, nausea, breathlessness, dizziness, and even fainting.

 

1. of which type there are 200,000 worldwide, can interfere with pacemakers and that
2. of which, worldwide, there are 200,000 of that type, and which can interfere with pacemakers, and
3. of which type there are 200,000 worldwide, they can interfere with pacemakers and
4. 200,000 of which type exist worldwide, interfering with pacemakers, and
5. 200,000 of that type existing worldwide and can interfere with pacemakers, and

重新贴题讨论一下，

这里的200, 000 of which type exist worldwide是做什么成份，which一定是指代前面的the magnetic fields emitted by one manufacturer’s security surveillance system,那么有没有可能把200, 000 of which type 看成是that 从句中的主语哪？如果可以则谓语动词就存在了是exist .

另外这里是this interaction 感觉上是指代前面的内容，如果变成了announced that...and that结构好像把这个关联弄断了。

请NN指导！！

tokyolove

同意Janjishi!!!!

greentree_du

请大牛指点一下此题。

究竟是哪个 答案。

soloenti

後面是用 this interaction 代表先前提过相同的观念    如果选A   则应该是用the interaction    选D

tomwalkson

这题答案错了，应该是A。

announeced that ... can, and that ...can, 平行结构的正确使用，逻辑意思也表达清楚正确。

jsj_gill

i choose a,but i still think the structure 'of which' is strange.

which one is the correct answer?

ecochem

以下是引用润Z细无声在2006-4-19 21:05:00的发言：

谢谢jandjshi和yhzh，我的一个朋友解释说：

首先排除ABC，因为OF WHICH这样的用法只会导致语义含混，相信你读起来也不太顺口吧，呵呵，D和E就好排除了。主要是个语感的问题。

可是我还是不大明白，此句的谓语是谁呢？

实在不同意高亮部分的说法，大全里面也有of which的用法，例子如下

33.A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients, is cultivated in China as part of a program to integrate traditional herbal medicine into a contemporary system of health care.

(A) A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients,

(B) A derivative, which has proved useful in decreasing mortality among young leukemia patients, of the Madagascar periwinkle,

(C) A Madagascar periwinkle derivative, which has proved useful in decreasing mortality among young leukemia patients,

(D) The Madagascar periwinkle has a derivative which has proved useful in decreasing mortality among young leukemia patients, that (E)

(E) The Madagascar periwinkle, a derivative of which has proved useful in decreasing mortality among young leukemia patients,

 

426.India is country with at least fifty major regional languages, of whom fourteen have official recognition.

(A) of whom fourteen have official recognition

(B) fourteen that have official recognition

(C) fourteen of which are officially recognized

(D) fourteen that are officially recognized (C)

(E) among whom fourteen have official recognition

 

738.The Emperor Augustus, it appears, commissioned an idealized sculptured portrait, the features of which are so unrealistic as to constitute what one scholar calls an “artificial face.”

(A) so unrealistic as to constitute

(B) so unrealistic they constituted

(C) so unrealistic that they have constituted

(D) unrealistic enough so that they constitute (A)

(E) unrealistic enough so as to constitute

并且of which 在本句也不觉得语意含混

所以我还是支持A！

[此贴子已经被作者于2006-10-15 6:16:56编辑过]