SWT一直都是PTE考试的重中之重，由于PTE的交叉打分机制，SWT一定程度上也决定着阅读分数的高低。但因为机经命中率比较高，考生往往忽略了练习的重要性，背一遍机经就去考试了。考试的时候如果纯靠回忆，很容易在高度紧张的时候忘记，而且一旦题目稍有变化将会不知所措，大大影响作文成绩。所以在备考阶段，对每篇SWT真题进行透彻的学习和分析，才是正确的复习方法。

 

以下是高频考题Pendulum clock的分析，并附上高分参考答案。

One of Guinness World Records' more unusual awards was presented at the National Maritime Museum yesterday. After a 100-day trial, the timepiece known as Clock B – which had been sealed in a clear plastic box to prevent tampering – was officially declared, by Guinness, to be the world's "most accurate mechanical clock with a pendulum swinging in free air". It was an intriguing enough award. But what is really astonishing is that the clock was designed more than 250 years ago by a man who was derided at the time for "an incoherence and absurdity that was little short of the symptoms of insanity", and whose plans for the clock lay ignored for two centuries. The derision was poured on John Harrison, the British clockmaker whose marine chronometers had revolutionized seafaring in the 18th century (and who was the subject of Longitude by Dava Sobel). His subsequent claim – that he would go on to make a pendulum timepiece that was accurate to within a second over a 100-day period – triggered widespread ridicule. The task was simply impossible, it was declared. But now the last laugh lies with Harrison. At a conference, Harrison Decoded: Towards a Perfect Pendulum Clock, held at Greenwich yesterday, observatory scientists revealed that a clock that had been built to the clockmaker’s exact specifications had run for 100 days during official tests and had lost only five-eighths of a second in that period.

One of Guinness World Records' more unusual awards was presented at the National Maritime Museum yesterday. After a 100-day trial, the timepiece known as Clock B – which had been sealed in a clear plastic box to prevent tampering – was officially declared, by Guinness, to be the world's "most accurate mechanical clock with a pendulum swinging in free air".

昨天，吉尼斯纪录里面最不同寻常的一个奖项给了National Maritime Museum。在100天的试验后，叫做ClockB时钟，根据官方宣称是最“准确的机械摆钟”。中间的插入语是不需要看的.

所以本段的重点是：

1. One of Guinness World Records' more unusual awards was presented at the National Maritime Museum yesterday. 

2. The most accurate mechanical clock.

It was an intriguing enough award. But what is really astonishing is that the clock was designed more than 250 years ago by a man who was derided at the time for "an incoherence and absurdity that was little short of the symptoms of insanity", and whose plans for the clock lay ignored for two centuries. The derision was poured on John Harrison, the British clockmaker whose marine chronometers had revolutionized seafaring in the 18th century (and who was the subject of Longitude by Dava Sobel).

这个奖项是很有趣的。但是最令人惊奇的是这个时钟是250年前设计出来的，这个人当时被嘲笑为“不可理喻的疯狂症状”。这个钟表制作人的计划被忽略了200多年。这个人是叫做Joh Harrison，一个英国制表匠，他的航海时钟(marinechronometers)使18世纪的航海有了巨大变革。这一段的重点是but后面的部分。

所以总结起来这一段的重点有：

1. the  clock was  designed  more than  250  years ago 

2. the  clock  lay ignored  for  two centuries

His subsequent claim – that he would go on to make a pendulum timepiece that was accurate to within a second over a 100-day period – triggered widespread ridicule. The task was simply impossible, it was declared. But now the last laugh lies with Harrison. At a conference, Harrison Decoded: Towards a Perfect Pendulum Clock, held at Greenwich yesterday, observatory scientists revealed that a clock that had been built to the clockmaker’s exact specifications had run for 100 days during official tests and had lost only five-eighths of a second in that period.

这一段主要内容是：这个人宣称他要做一个最准确的时钟，那时候是被广泛流传认为是个笑话。但是现在笑到最后的人反而是他。而且这个人的种通过了官方测试，几乎只慢了5/8秒的时间，所以说是很准确的。总结来说，这段重点是：

1. His claim triggered widespredridicule. 

2. The clockmaker’s exact speicifications had passedofficial tests.

While Clock B is one of Guinness World Records’ most unusual awards and was presented at the National Maritime Museum yesterday because it is the most accurate mechanical clock that passed the 100 days trial, it was designed more than 250 years ago and ignored for two centuries since the clockmaker’s claim triggered wide spread ridicule, but the last laugh lies with Harrison now.

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