1、First column:circulate circulation confuseconfusiondiscoverdiscoveryequipequipmentexpandexpansionproduceproduction Using words and expressionsSecond column:battle battleexportexportfocusfocusregretregretstrugglestrugglesumsumAnswer key for exercise 1 on page 491.The news about Jeffs success quickly
2、_ around the school.2.The _ of his study was on the _ of Chinese products.3.In an interview,Jeff _ that he had only one _.4.Before,he often _ to understand the _ world of business.5.He was studying English to _ himself for his new job.circulatedfocusexportcommentedregretstruggledconfusingequipToday
3、we use _ in almost every part of our lives,hoping to make life faster,more convenient or just better.At home we use them to kill flies and other disease-carrying _.Doctors give them to us in medicine to fight harmful _ in our bodies.Factory workers use them in industrial _ to make everything from to
4、ys to shoes to toothbrushes.Farmers also use them in the _ to help their plants grow fast and become strong.chemicalspetsbacteriaproductionsoilAnswer key for exercise 2 on page 49However,the _ of new ways to use _ have brought difficulties as well as benefits.For example,too much use in farming lead
5、s to food that is low in _ and other things that we need for good _.What is the _ of the problem?Some people think it is from a wrong _ on money and speed,while others say it is just from a lack of education about the problems.Who knows?Maybe it is both.discoverieschemicalsmineralsfocusrootnutrition
6、1.今天的课主要讲如何写新闻总结。(focus on;summary)2.我们必须快速浏览这个报告,找到它的主要内容(skim)Todays lesson focus on how to write a summary of a new article.we must skim the report to find the main idea.Answer key for exercise 3 on page 493.老师让我们将难懂的单词划线并查字典（找出其意思）。(underline)4.他说像统计数据这样的细节就不必包括在内了。(statistics;details)The teache
7、r told us to underline the difficult words and look them up in the dictionary.He said that details like statistics should not be included.5.我想我将用到一篇关于农民们让自己的土地远离化肥的报告。(keepfree of;chemical fertilizers)6.这个农民花了20年的时间来创建自己的企业。(build up)7.使用过多的化肥导致了严重的问题。(lead to)I think Im going to use a reporter abou
8、t how farmers are keeping their fields free of chemical fertilizers.It took the farmer twenty years to build uphis business.Using too much chemical fertilizer will lead toserious problems.1.Helping people in need of help is nice.2.Growing super hybrid rice is not easy.3.Learning more about farming i
9、s not difficult.4.Doing research in the countryside is not easy as in the city.5.Getting rid of hunger is very important for some African countries.6.Explaining this again is important or we will confuse the students.Answer key for Exercise 2 on page 13:Discovering useful structures1st group:to do 2
10、nd group:doing 1st group:promise,fail,hope,afford,hope,plan 2nd group:enjoy,finish,mind,miss,keep3rd group:try,stop,begin,forget,like,startAnswer key for Exercise 3 on page 13:1.It was good _ the young man working with his father in the fields.2.Paul clearly enjoyed _ about how to farm well.3.When I
11、 talked to him,he told me he dreamed of _ his own farm.4.He will keep _ with scientific methods of farming.5.He will keep _ new ideas so he can help farmers around China.Answer key for Exercise 4 on page 13:to seelearninghavingto experimenttrying not6.I am quite interested _ what will happen to Paul
12、s farm in the future.7.Someday,he hopes _ super wheat,like Yuan Longpings super rice.8.He is not afraid _,because he knows failure will help him learn more,9.He cares very little about _ a big house and a car.10.His father says that he has never regretted _ his son to study abroad.to find outto deve
13、lopto failowingsendingUsing structures1 Smoking 2 paying 3 getting 4 Learning 5 playing 6 Doing 7 Using 8 dancing9 exchanging 10 supplyingAnswer key for Exercise 1 on page 50:An old farmer was about_.He wanted _ sure that his sons would stop _ among themselves.He hoped _ them _ the farm successfully
14、.The old man called his sons together and said,“My sons,Im about _ this life.You will find all that I have in the farm.”to dieto makefightingto encourageto manageto leaveAnswer key for Exercise 2 on page 50:Some time later,after their father had died,the sons started _ long hours in the fields.They
15、thought that their father had buried a treasure in the ground.They kept _ from morn till night,_ the soil over again and again,but still failed _ any treasure.That years crops,however,were better than any of their fathers crops and sold for a very high price.In the end,the young men found that _ hard is truly a treasure in itself.spendingworkingploughingturningto find
