课件27张PPT。 Module 4 Sandstorms in AsiaPara 1: Measures
Para 2: Effects
Para 3: Introduction
Para 4: Causes
Para 5: Definition
Para 6: Suggestions
SkimmingPara 1: Introduction
Para 2: Definition
Para 3: Causes
Para 4: Effects
Para 5: Suggestions
Para 6: MeasuresRaise a problemAnalyse the problemSolve the problemDetailed readingCompetition154326True or False1) Sandstorms which sometimes affect Beijing can be forecasted some months before arriving in Beijing.Back to competitiontwo points2) Land becomes desert only because people cut down tress and dig up grass. 1. Choose the best answer. Sandstorms are strong winds carrying ___________ through the air.
A. dirt and mud
B. rain and heat
C. sand and dust
D. cloud and snow two pointsFrom the last paragraph we know _______.
A. the government won’t plant trees any more in five years
B.?the distance between the desert and the center of Beijing is only 250 kilometers
C. more than 30 million trees have been planted in Beijing
D. the government is taking measures to prevent sandstorms
2. Choose the best answer.Back to competition Why did traffic move slowly in sandstorms?
Because the thick dust makes it difficult to see.Back to competitiontwo pointsWhat do the experts advise people to do when
a sandstorm arrives in the city?
A. Don’t go out
B. Don’t wear masks.
C. Don’t go to work as usual.
D. Don’t ride bicycles
two pointsWhat are the four main places where there are sandstorms in the world and find them out on the map.
North AmericaCentral AfricaAustralia Central AsiaBack to CompetitionTranslationThis is a process that happens when land becomes desert because of climate changes and because people cut down trees and dig up grass.Back to Competition()沙漠化是由于气候改变或者人类砍伐树木、铲除草皮而使陆地变成沙漠的一个过程。two pointsAnalyse some difficult sentences and translate.To have been caught in a sandstorm is a terrible experience.
To be cycling in a sandstorm is frightening.
To prevent it coming nearer, the government is
planting trees.
Back to competitionfive points[] Discussion: What measures should we take to prevent sandstorms coming? Green
fencesforecastInnovation,Coordination, Green,
Opening and SharingHomework:Design a poster that encourages people to protect the environment.Thank you for your attention!