名词从句(2).

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1 名词从句(2)

2 句型B “It+被动态谓语+主语从句” It is said that mathematics(数学) is the base(基础) of all other sciences. It is found(发现) that this solution(解) satisfies(满足) the given(给定的) conditions(条件). It has not been discussed whether(是否) an oscillator(振荡器) can be used here. It cannot be predicted(预言) when these major(主要的) breakthroughs(突破) will be achieved(取得).

3 It is not yet(尚) understood(了解) which factors(因素) determine(决定) the size(尺寸) of the high-intensity(高亮度) filaments(灯丝). 其中常见的句型如下： (i)“it is well known that …”→“众所周知” (ii)“it can be seen that …”→“可以看出…” (iii)“it must be pointed out that …”→“必须指出…” 句型C “it + 几个不及物动词+ 主语从句”

4 It can happen(发生) that the overall(整个) phase(相位) shift(移动) becomes zero(零).
At first glance(咋看起来) it does not appear(似乎) that this integral(积分) fits(适合) any of the forms(形式) presented(介绍) up to this point(时刻). 其中很有用的句型如下： (i)“it follows that …”→“(由此)得出/得知…” From above(上面) it follows that the slope(斜率) at that point is zero. (ii)“it does not matter …”→“…是没有关系的”

5 It does not matter how the two numbers(数) are added(加).
这句型绝大多数情况是“it makes no/little difference +主语从句”，意为“…是没有/没什么区别的”。 It really(实际上) makes no difference what we use as a standard(标准). It makes little difference which unknown(未知数) is chosen(选择).

6 课堂练习：英译汉 1、It is obvious(明显的) where the fault(故障) lies(处于). 2、It should be emphasized(强调指出) that these definitions(定义) may be used for any angles(角) of any magnitude(大小). 3、It may be questioned(问) whether this approach(方法) is the best for the physicist(物理学家). 4、It does not matter whether the magnet(磁铁) or the loop(导线环) is actually(事实上) being moved(移动).