Learning about Languageppt课件课堂实录

M4,U2 Discovering useful words and expressions Teaching aims:Heip students to consolidate the new words theyhave learned Teacheing obsters:word of speech and free usage of the new words Teaching steps: Step1: 1. Find the word or phrase from the text for each of these meanings. 1) brown (skin) from spending too much time in the sun（sunburnt）

2) to make something or somebody free of（rid…of）

3) to become larger in size, number or amount（expand）

4) to make information and ideas known to many people（circulate）

5) would prefer to（would rather）

6) to try extremely hard to achieve something（struggle）

7）to send things to foreign countries for sale（export）

8) pleased by having what one wants or needs（satisfied with）

9) to provide with things necessary for a certain purpose（equip）

10) plants grown in large amounts by farmers（crops）

11) because of（thanks to）

Step2: 2. Find words from the previous pages of this unit to replace the underlined words. You may need to change the words’ forms to fit.

1) According to the WHO’s information, about 1.8 million people across the world die each year from diseases caused by unsafe food and water.（statistics,globe）

2) Different kinds of strong corn, another hybrid grain, has been developed by scientists of many different races.（super, nationalities）

3) Not having enough food leads to poor health and, therefore, sickness.（Hunger, disease）

4) Over 56 percent of the people in a small Southeast Asian country are in jobs related to agriculture.（Vietnan, occupations）

5) With the open conditions in today’s international business world, hybrid grains can be sold and sent abroad to countries around the world.（freedom, exported）

Step3: 3. Complete the passage with the words below in their proper forms. In the past _decade___, some of the farmers in the west of China have met with some success in the struggle against the expanding desert.

Equipped with new scientific farming methods, they have been able to use less farmland than in the past. Their output of grain and other crops, however, is still the same, which makes it possible for them to use the remaining farmland for planting trees. These and other farmers are starting to win small battles in the great war against the disturbing growth of the desert. Step4:Homework