一起烤雅思 1-16b DVT

steelver (白龍) 路人甲
331 8 0
发表于:2012-05-30 12:00 [只看楼主] [划词开启]
近期节目传送门~ Episode11 α β Episode12 α β Episode13 α β Episode14 α
收到热心童鞋的建议,音频将分为小节,方便大家逐页对照,也可以自由轻松的调整学习进度^_^ 碰到不懂的单词请召唤小D喔~


Listen to Dr Crantock and the way he structures his argument. Listen for a topic sentence, and for the way he lists the different ideas.

When we’re travelling on long haul flights, several things happen. First of all, we’re stationery. We’re not moving our legs, so there’s no physiological compression of the calf muscles. Blood tends to sit in the veins and may clot. Number two, the environment is dry. We dehydrate, we may drink some alcohol. We dehydrate even further. Alcohol’s a diuretic agent, and it results in us actually drying out, and that makes the blood a little bit thicker and stickier, and these factors lead to clotting.

The first sentence is the topic sentence. He said ‘When we’re travelling on long haul flights, several things happen’.

So we know from this topic sentence, that he is going to tell us about traveling on long haul flights.

But there are lots of things you can say about travelling on long haul flights. So he says something else in this sentence that gives us more information. He says ‘several things happen’.

This phrase is called the controlling idea. Every topic sentence has a controlling idea.

It tells us what the focus of the paragraph will be.

So he’s going to be discussing several things that happen on long haul flights.

In the rest of the paragraph, he lists some of the things that happen. He raises the points one by one, and discusses them in detail.

When we’re travelling on long haul flights, several things happen. First of all, we’re stationery. We’re not moving our legs, so there’s no physiological compression of the calf muscles. Blood tends to sit in the veins and may clot.

Number two, the environment is dry. We dehydrate, we may drink some alcohol. We dehydrate even further. Alcohol’s a diuretic agent, and it results in us actually drying out, and that makes the blood a little bit thicker and stickier, and these factors lead to clotting.


Dr Crantock says ‘first of all, we’re stationary’.

This is the first factor in his argument. People are stationary, or sitting still.

He says ‘Number two, the environment is dry’. This indicates it is the second factor in his argument.

Moving on through the argument, you can keep discussing factors by using transition signals such as:
‘another factor is’;
‘in addition’ or ‘additionally’;
‘furthermore’;
‘above all’.

You could also use ‘next’, but this is quite informal as well.

The last reason or item in the list could be introduced by ‘lastly’ or ‘finally’.

It good practice to watch out for these transition devices when listening to someone talk. They’ll help you follow an argument more clearly.


Finally for today, let’s look at some definitions. Doctor Crantock gives a definition of the condition he is talking about, because it’s an unusual medical term.

Deep vein thrombosis is where a clot forms in the calf veins and occasionally in the veins of the leg, sometimes in the veins of the pelvis.

He says: ‘Deep vein thrombosis is where a clot forms in the calf veins’.

This is common pattern for giving a definition.

First, name the thing being defined. In this case, it’s:
‘Deep vein thrombosis …’.

Secondly, use the verb to be – ‘is’ or ‘are’.
Here, we’d say:
‘Deep vein thrombosis is …’

Thirdly, we can write the class. What kind of thing is it? In this case, DVT is ‘a medical condition’.

So we might have:
‘Deep vein thrombosis is a condition …’.

Next we use a word like which, who, where, or that.
‘Deep vein thrombosis is a condition where …’

And finally we give the characteristics of the thing. This could be a physical description, or a description of behavior. In the case of a medical condition, this would most commonly be the symptoms or effects of the condition.

‘Deep vein thrombosis is a condition where blood clots form in veins.’

Let’s try a couple of examples.

What is a ‘computer’? It ‘stores and processes information’.

‘A computer’, ‘is’, ‘a machine’, ‘that’, ‘stores and processes information’.

What is an ‘accountant’? Well we have the phrase ‘analyse and deal with finances’.

‘An accountant’ ‘is’ ‘a person’ ‘who’ ‘analyses and deals with finances’.

And what is the time? The time is something that we have run out of for today.

See you next time on Study English. Bye bye.
点击查看大图~STUDY NOTES~
今天木有NOTE喔~上期节目已经总结完了^__^
作业还是有的~
Study the following groups of sentences and select the statement that would make a good topic sentence for a paragraph.

答题区

1、Paragraph – Scuba diving
2、Paragraph – Good health
3、Paragraph – Drinking
4、Paragraph - Travelling
5、Paragraph – Registering at university

本帖来源社刊

全部回复 (8) 回复 反向排序

  • 0

    点赞

  • 收藏

  • 扫一扫分享朋友圈

    二维码

  • 分享

课程推荐

需要先加入社团哦

编辑标签

最多可添加10个标签,不同标签用英文逗号分开

保存

编辑官方标签

最多可添加10个官方标签,不同标签用英文逗号分开

保存
知道了

复制到我的社团