《The world of science》SectionC PPT课件

外研版高中英语必修三《The world of science》SectionC PPT课件，共14页。

Vocabulary

1. experiment

an experiment with/on... 关于……的实验

perform/carry out/do/conduct an experiment 做实验

experiment with/on... 用……做实验/试用……

练习：____________________ (用……做实验) mice can give us an idea of the effect of the disease on humans.

2.attach

attach . . .to. . . 把……系于……；把……附在……上（to为介词）

attach (great/little) importance/value/weight/significance to. . . 认为……（很有／几乎没有）重要性／价值／分量／意义（to为介词）

attached adj.爱慕，依恋；附属于

be attached to. . . 附属于……；依恋/爱慕……

attachment n.附属物，附件；爱慕，依恋

练习：My younger brother is studying in a high school __________ (attach) to Renmin University of China.

3. conduct

conduct a survey/an experiment/an interview 进行调查/实验/面试

conduct oneself well/badly 表现好/差

conductor n.（乐队）指挥；（公共汽车上的）售票员；列车长；导体

conductive adj. 具有传导性的

注意：conduct 词性不同时，发音不同，重音位置也不同，作名词时重音在前，作动词时重音在后，可以概括为“名前动后”。此类单词常见的还有 transport, import, increase 等。

练习：Yesterday our chemistry teacher ___________ an experiment on wood to see whether it was __________, and after the experiment we drew a conclusion that wood was a poor _________ of heat.

4. account

give an account of. . . 描述……

open/close an account 开户／销户

have an account at/with a bank 在银行有账户

account for. . . 是……的原因；解释……；（数量上、比例上）占……

account sb. + adj. /n. 认为某人……(常用于被动语态）

on account of 因为，由于

on no account 决不，绝对不（位于句首时，句子用部分倒装）

take sth. into account(=take account of sth.) 考虑到某事，顾及某事

练习：Lighting accounts ___________ about 7% of the total electricity consumed in the US.

Think & Share

1. Do you think it matters that Franklin's experiment might not be true? Why?

2. What is your opinion about the statement ". . .we should not always believe everything we read or hear-even if it is a great story"?

3. What qualities do you think a great scientist should have?

4. In what ways do scientists contribute to society?

Firstly, scientific discoveries promote the development of our society. Secondly, the contributions of scientists in medicine extend our life span. Thirdly, scientists have invented a lot of surprising tools that fundamentally improve our living standards.

如何写实验报告

完成一个实验的步骤有设计实验、做实验和写实验报告。

写实验报告时，注意要完整介绍实验过程，用恰当的表示顺序的词语来清楚表述实验步骤。句式要多用祈使句，时态多为一般现在时。

实验报告通常包括以下内容：

1.实验目的：表明为什么要做这个实验。

2.实验用品：交代做实验要用的物品。

3.实验方法和过程：清楚、具体地写明实验步骤。在组织文字时，要正确运用表示顺序的词。

4.实验结果：如实且正确地记录实验现象或数据。

5.结论：通过实验得出相关的结论。