OG 8中的that用法

lizaz

8. Lacking information about energy use, people tend to overestimate the amount of energy used by equipment, such as lights, that are visible and must be turned on and off and underestimate that used by unobtrusive equipment, such as water heaters.
(A) equipment, such as lights, that are visible and must be turned on and off and underestimate that
(B) equipment, such as lights, that are visible and must be turned on and off and underestimate it when
(C) equipment, such as lights, that is visible and must be turned on and off and underestimate it when
(D) visible equipment, such as lights, that must be turned on and off and underestimate that
(E) visible equipment, such as lights, that must be turned on and off and underestimate it when

请问ETS为什么用that，而不用which，这里不是非限制性定从句嘛？

motorola00

such as lights 是插入语，that 是修饰equipment.

super_lee

that 是指代the amount of energy

在这种对比性的句式中，单数用that,复数用those.
记住就行。

motorola00

我觉得that 不是修饰 the amount of energy。 难道 the amount  is visible and can be turn down and turn off??

Samson2004

以下是引用motorola00在2003-12-13 17:53:00的发言：
such as lights 是插入语，that 是修饰equipment.

Agree.

Allen

以下是引用motorola00在2003-12-14 1:03:00的发言：
我觉得that 不是修饰 the amount of energy。 难道 the amount  is visible and can be turn down and turn off??

同意

Snazzy

then when r 'that' and 'which' used?
what's the difference?

ios

这是限定性定于从句，所以用that.

超级帅哥

以下是引用motorola00在2003-12-14 1:03:00的发言：
我觉得that 不是修饰 the amount of energy。 难道 the amount  is visible and can be turn down and turn off??

他说的是第二个THAT~~~

你说的是第一个THAT

motorola00

oh... 就第一个that 而言，不能用which, 否则就变成限制性定语从句必须修饰lights了。。