《Module5ALessoninaLabintroduction.ppt》由会员分享，可在线阅读，更多相关《Module5ALessoninaLabintroduction.ppt（13页珍藏版）》请在三一文库上搜索。
1、2021/5/4,Module 5 A lesson in a lab,2021/5/4,2021/5/4,Do you know what they are？,test tube,beaker & glass rod,balance,tongs,2021/5/4,liquid,mixture,oxygen,electricity,expand,contract,something that flows freely and is not a solid or gas, for example water or oil,a combination of different things,a c
2、olourless gas that is necessary for people, animals and plants to live,a form of energy that we use every day, without which we would be in dark at night,to become greater in size or number,to become less or smaller,2021/5/4,Put the words in pairs or groups.,contract air earth gas liquid oxygen moon
3、 solid expand sun,air gas - oxygen,contract - expand,earth sun - moon,gas liquid - solid,2021/5/4,3. Steel is a mixture of _. A. iron and other substances B. iron and oxygen,4. _ of the earths surface is water. A. Two-thirds B. 50%,Choose the correct answers to the quiz, then listen and check your a
4、nswers.,1. Water exists as _. A. a solid, a liquid and a gas B. a solid and a liquid only,A,A,A,A,2. When you heat a metal, _. A. it expands B. it contracts,2021/5/4,5. The distance of the sun from the earth is _. 25,500 kilometres 150,500,500 kilometres,Choose the correct answers to the quiz, then
5、listen and check your answers.,6. The earth is _. A. 4.6 million years old B. 4.6 billion years old,7. The earth is _. A. twice as large as the moon B. forty-nine times larger than the moon,B,B,B,2021/5/4,Can you read the following numbers?,one,twenty,three hundred,four thousand,fifty thousand,six h
6、undred thousand,seven million,eighty million,nine hundred million,one billion,2021/5/4,12,345,678,900,thousand,million,billion,Say this number,2021/5/4,fifty-two million, four hundred and seventy thousand, three hundred and eighty-three,fifty-two million, four hundred and seventy, three hundred and
7、eighty-three,There are two mistakes in the following numbers. What are they?,hundred million,three hundred and sixty-five million, five hundred and twenty-eight thousand , four hundred and sixty-two,one thousand million,52,470,383,100,000,000,1,000,000,000,365,528,462,one/a hundred million,2021/5/4,62,809,Competition,1,001,240,000,174,301,59,743,345,2,789,100,888,98,473,52,470,383,750,000,000,2021/5/4,1/5,one fifth,Can you say the following in English correctly?,cardinal number,ordinal number,a half,a third,a quarter,one-tenth,two-thirds,three quarters,four-fifths,2021/5/4,See you!,