高中英语 Module 5 A Lesson in a Lab Vocabulary and speaking课件 外研必修1

1、Vocabulary and speaking Can you say the following in English correctly?1,000 2,000 12,000 112,000796,000one thousandtwo thousandtwelve thousandone hundred, twelve thousandseven hundred, ninety-six thousand879,457eight hundred, seventy-nine thousand, four hundred and fifty-seven 1,000,000 9,000,00032

2、,000,000 212,000,000one million nine millionthirty-two milliontwo hundred, twelve million988,766,688nine hundred, eighty-eight million, seven hundred, sixty-six thousand, six hundred and eighty-eight987,654,321nine hundred, eighty-seven million, six hundred, fifty-four thousand, three hundred and tw

3、enty-one1,000,000,000 one billion9,000,000,000 nine billion32,000,000,000thirty-two billion564,865,000,000five hundred, sixty-four billion, eight hundred, sixty-five million978,876,675,467nine hundred, seventy-eight billion, eight hundred, seventy-six million, six hundred, seventy-five thousand, fou

4、r hundred and sixty-seven Lets have a match to say who can say the following numbers correctly and quickly. 765,847 seven hundred, sixty-five thousand, eight hundred and forty-sevenPractice2. 756,980,000 seven hundred, fifty-six million, nine hundred and eighty thousand3. 345,567,887,987 three hundr

5、ed, forty-five billion, five hundred, sixty-seven million, eight hundred, eighty-seven thousand, nine hundred and eighty-seven 4. 897,786,000,576 eight hundred, ninety-seven billion, seven hundred, eighty-six million, five hundred and seventy-six5. 786,087,670,756 seven hundred, eighty-six billion,

6、eighty-seven million, six hundred, seventy thousand, seven hundred and fifty-six6. 987,765,654,345 nine hundred, eighty-seven billion, seven hundred, sixty-five million, six hundred, fifty-four thousand, three hundred and forty-five Read these questions aloud and say the answers. What is of 6,000,00

7、0? 2. How much is 35,246,000 plus 12,800,000? 3. What is 25% of 200,000,000?three millionforty-eight million, forty-six thousand fifty million4. How much is 260,408,396 and 5,284,700? two hundred, sixty-five million, six hundred, ninety-three thousand, ninety-six 5. What is of 1,000,500,000? seven h

8、undred, fifty million, three hundred, seventy-five thousand 6. What is 10% of 800,000,000? eighty million 1/5 1/61/74/7one fifthone sixthone seventhfour seventhsCan you say the following in English correctly?7/10 97/111seven tenths ninety-seven one hundred and elevenths forty-five eighty-sevenths总结总

9、结: 你能看出他们有什么特点吗？你能看出他们有什么特点吗？45/87分子用基数词分子用基数词, ,分母用序数词分母用序数词;分子大于分子大于1,分母的序数词需要加分母的序数词需要加s。另外另外, 还有几个特殊表达的情况还有几个特殊表达的情况:1/21/4 1/3 3/42/3one half one quarter one third three quarters two thirds Now lets say: 2/5 5/8 9/10 3/8 5/6Practicetwo-fifths five-eighthsnine-tenthsthree-eighths five-sixthsCan you say the following in English correctly?0.50.80.761.23point fivepoint eight point seven sixone point two three23.45100.3287.6757