English-by-the-Numbers复习课程

精品文档 1. Numbers, Decimals and Fractions Hundreds Thousands Fractions or a plus b equals c. The difference of c and b is a; or c minus b is equal to a. Here we have a times b equals x; or a multiplied by b is x. In this example, we have the sum of a and b multiplied by c. In this example, a is divided by b; or a over b. This is the nth root of x. For example, the square root of four is the second root of four, which is two. Here we have the cube root of eight, or the third root of eight, which is two. This is x to the nth. For n equal to two, we say x squared. For n equal to three, we say x cubed, or x to the third. Take the sum of two plus six and divide it by two. Multiply the sum of a plus b by fifteen and divide the result by a times b. What number is the sum of eighty- five and five What is two to the fourth What is twenty percent more than ten If x is fifty percent more than four, what is x Which of these five numbers is the smallest Which numbers are the two largest numbers Which number is ten percent of the largest number Which number is equal to the difference between the largest and smallest numbers 精品文档 精品文档 Sample Language EnglishEnglish byby thethe 3. Related Changes Part 1 Home Buyers Sample Graphs Part 2 Speed this graph gives the estimated Daily Activities How Satisfied Are You With Your Job Job Satisfaction Factors Drinkers 1978-80 1998-2000 2001 1970 Energy Sources Part 2 2000 1970 Oil Usage In the US China Imports Exports 2004 Causes of Death by Unintentional Injury Annual Deaths by Selected Causes Aircraft Sales 1995 Now Quiz This Unit prepares students to understand and give oral presentations that refer to pie graphs. A wide variety of useful vocabulary is also included. Goals To develop oral fluency and the ability to make a well-organized oral presentation around data presented as pie graphs. To.be able to ask and answer questions about the relative importance of various factors as presented in pie graphs. Other factors shown in this graph include As you can see Taken together, these factors. This graph is based on It gives a breakdown of Putting the two graphs together, we can see that In the period 1998-2000 passives is divided up, might be improved, is used for, could be reduced, could be improved, this survey was conducted, is based on, was being used, were caused by According to the graph, how much of the day is spent sleeping Key Sentences and Examples Pie Graphs are a useful way to show how various parts contribute to the whole. For example, we can quickly see how people divide up their day. Daily Activities This pie graph shows how a typical day is divided up for a hardworking software engineer. Assuming the person sleeps an average of 6 hours per day, we see that 25 of the day is spent sleeping. If the person works 8 hours per day, thats 33 of the day. Other factors shown in this graph include meals, commute time, entertainment, and homework or hobby. We can easily see how this per