Module4 Great Scientists Function 外研版必修4

Module 4 Great Scientists FunctionPeriod 3 Function—Talking about numbers■Goals ●To learn to talk about numbers■ProceduresStep 1: Learning about English NumbersSymbols Word + Plus (And); - Minus (Take away); x Multiplied by (Times); ÷ Divided by; = Equals (Is); . Point; % Percent;1 + 6 - 2 x 2 ÷ 2.5=4 “One plus six minus two multiplied by two divided by two point five equals four.” or “One and six take away two times two divided by two point five is four.”10% Ten percent Fractions 表示分数时，分子要用基数词，分母用序数词。如果分子大于 1，分母必须用复数形式：1/8 One eighth; 1/5 One fifth; 1/4 One quarter; 3/4 Three quarters; 1/3 One third; 2/3 Two thirds; 1/2 One half What to say We often say “a” instead of “one”.For example: we say “A hundred” and “A half” and “One and a half”.When pronouncing decimals we use the word point to represent the dot. The numbers following the dot are pronounced separately. For example:1.36-- “One point three six”Interesting Numbers ~ 0 ~ When we use it For example:- 0 = oh after a decimal( 小 数 的 ) point 9.02 = “Nine point oh two.” in bus or room numbers Room 101 = “Room one oh one.”Bus 602 = “Bus six oh two.” in phone numbers 9130472 = “Nine one three oh four seven two.” in years 1906 = “Nineteen oh six.” 0 = nought before a decimal point 0.06 = “Nought point oh six.”0 = zeroin temperature -10°C = “10 degrees below zero.” US English for the number 0 = “Zero”0 = nil in footballChelsea 2 Manchester United 0 = “Chelsea two Manchester United nil.” 0 = love in tennis 20 - 0 = “Twenty love.”~ 12 ~ 用心 爱心 专心 125 号编辑 1 The number 12 is often represented as a dozen and the number 6 as a half dozen.For example:12 eggs= “A dozen eggs.”6 eggs = “Half a dozen eggs.”Step 2: Learning about phone numbersEach figure is said separately.24 - two fourThe figure “0” is called oh.105 - one oh fivePause after groups of 3 or 4 figures (last group).376 4705 - three seven six, four seven oh fiveIf two successive figures are the same, in British English you would usually use the word double (in American English you would just say the figure twice)376 4775 - BE: three seven six, four double seven five376 4775 - AE: three seven six, four seven seven five 用心 爱心 专心 125 号编辑 2