人教版必修4 unit 2 workbook练习.ppt

First column : circulate – circulation confuse—confusion discover—discovery equip—equipment expand—expansion produce—production Using words and expressions Second column : battle– battle export—export focus—focus regret—regret struggle—struggle sum—sum Answer key for exercise 1 on page 49 The news about Jeff’s success quickly _________ around the school. The ______ of his study was on the _______ of Chinese products. In an interview, Jeff __________ that he had only one _______ . Before, he often _________ to understand the _________ world of business. He was studying English to ______ himself for his new job. circulated focus export commented regret struggled confusing equip Today 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 toys to shoes to toothbrushes. Farmers also use them in the ______ to help their plants grow fast and become strong. chemicals pets bacteria production soil Answer key for exercise 2 on page 49 However, the __________ of new ways to use _________ have brought difficulties as well as benefits. For example, too much use in farming leads 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. discoveries chemicals minerals focus root nutrition 今天的课主要讲如何写新闻总结。(focus on ; summary ) 我们必须快速浏览这个报告, 找到它的主要内容 (skim) Today’s 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 49 老师让我们将难懂的单词划线并查字典（找出其意思）。(underline) 他说像统计数据这样的细节就不必包括在内了。(statistics; details )