S: About pollution.

　　Option Two

　　Learn some words in the passage that are new to students.

　　Match the words with the definitions.

　　Read out the words in the box and have students repeat them after the teacher. Then ask students to match the definitions individually; after that, check the answers with the whole class.

　　(Show the following on the screen. )

　　human

　　development

　　index

　　measure

　　goal

　　life expectancy

　　position

　　educate

　　figure 　　1. number of years that a person is likely to live

　　2. written symbol for a number

　　3. figure showing the relative level of prices or wages compared with that of a previous date

　　4. of man or characteristic of man

　　5. teach sb.

　　6. object of one's efforts

　　7. developing or being developed

　　8. find the size, length, volume, etc. by comparing it with a standard unit

　　9. place or rank in relation to others 　　Suggested answers:

　　1. life expectancy　2. figure　3. index　4. human　5. educate　6. goal　7. development

　　8. measure　9. position

　　Option Three

　　1. Show the following pictures on the screen.

　　2. Encourage students to describe the picture in their own words by asking them a few questions such as "What can you see in the picture? " " Is it an example of a developing country or developed one? ". This Activity will surely lay foundation for the reading of the passage.

　　→ Step 3 Fast Reading

　　Option One

　　1. Have students read the passage quickly and finish Activity Two.

　　Write the names of the countries below.

　　Human Development Index

Top of the list Number 7 Number 13 Bottom of the list 　　Suggested answers:

　　Human Development Index

Top of the list Norway Number 7 U. S Number 13 The U. K. Bottom of the list Sierra Leone 　　2. Make students read through the passage quickly one more time and ask them to answer the following questions:

　　Show the questions on the screen.

1　What did the world leaders agree to do in 2000?