课件16张PPT。Module 4 Sandstorms in AsiaIntroductionReading and Vocabularytornado
hurricaneNatural Disastersearthquake sandstormlightningvolcanic eruptionLook at the picture below .Complete the sentences using the correct form of these words . blow bury frightening
last (v) sandstormThere has been a . It for ten hours and was very . The wind the sand high around the houses , and some cars were almost completely by the sand . sandstorm lastedfrighteningwas blowingburiedcitizen cycle (v) dust expert
forecast process situation survive 1. to ride a bicycle cycle2. someone who knows a lot about a particular subject3. things that happen one after another , and have a result expertprocess4. someone who lives in a particular town or country5. very small bits of dirt or earth , on the ground or in the airto continue to live after a difficult or dangerous
situation or event 7. to say what will probably happen 8. everything that is happening at a particular timecitizendustsurviveforcastsituation
Activity 3
Directions: choose the correct answers
①Sand dunes (in Paragraph 2) means_________.
(a) plants growing in sand (b) sand hills
②desertification (in Paragraph 3) means ___________.
(a)making land become desert (b) throwing something away
③If you want to wear a mask (in paragraph 5) ,you should wear it over your _________.
(a)face (b) bodyFast reading: Para.1 a. the description of sandstorms
Para.2 b. the causes of sandstorms
Para.3 c. a major disaster in Asia
Para.4 d. the effects of sandstorms
Para.5 e. the government’s measures
Para.6 f. the forecast and suggestions Match the main idea of each paragragh.II. Read the text carefully and complete the following chart. strong, dry winds that carry sandCentral Africa and Australia desertification thick dust surprisingA mass campaignmore than 30 billioncontinue plantingI. Read the passage and choose the best answers.1.?Sandstorms are strong winds carrying ___________ through the air.
A. dirt and mud
B. rain and heat
C. sand and dust
D. cloud and snow Careful-reading2. What 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 3. The factors that cause land to be desert are ______.
A. cutting down trees.
B. digging up grass
C. climate changes
D. all of the above4. From 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 sandstormsCause of Sandstorms Topographical factor ※※Atmospheric factors ※※※Excessive cultivation of farmland: DeforestationOver-grazing: ※ Ineffective protection of constructive sites:What measures should we take to prevent sandstorms coming?Summary:1. We should plant more trees and grow
more grass.
2. Control air and water pollution.
3. Build green fences along the desert.
4. Forecast sandstorm’s real time to
prevent disaster.Teaching plan
Module 4
Sandstorms in Asia
By yuanyi
Teaching Aims:
1. Knowledge and Skill
Get the students to review the violence of nature and know more about sandstorms and how to protect the environment.
Through discussion and the comprehension of Reading, develop the students’ listening, speaking, reading and writing, mainly reading.
Encourage the students to search the information on the Internet to gain more knowledge of sandstorms and environmental protection.
Improve the students’ ability to read for specific facts.
2.Emotion and Values
Enable the students to talk about the cause and influence of sandstorms，and the ways to solve the problem in order to increase their sense of protecting the environment.
To encourage the Ss to talk about the damage caused by sandstorm and their own feelings about it.
Difficulties and Importance:
a. Conclude and collect the words and phrases related to environment and environmental protection.
b. Ask students to think ways to protect the environment.
Improve the student’s ability of grasping the general idea of the passage.
Teaching Method:
Task-based methodology
Communicative Approach
Teaching Procedures:
Period 1
Step 1. Warming up
Look at the picture. Complete the sentences using the correct form of these words Then answer the following questions.
blow bury frightening last sandstorm
There has been a ______. It _____ for ten hours and was
very _______. The wind _______the sand high around
the houses, and some cars were almost completely ______
by the sand.
Step 2 Pre-reading
a. Look at the photo and answer the following questions.
1. Get Ss to come up with as many words as possible
while looking at the picture.
2. What is happening?
3. What is the cyclist wearing and why?
4. What do you think happened to traffic in this situation?
Why?
5. What do you think experts advise people to do in this
situation?
Step 3While-reading
Skimming and scanning
Read the passage quickly and fill in the diagram with one proper word.
Part 1(Para1) d__________
Part 2(Para2-5) c_______
d_______
S_______
i________
s________
Part 3(Para.6) m________
Detailed Reading
1)Read the passage carefully and answer the following question.
1 What are sandstorms?
2 In what places do they often happen?
3 What does Ren Jianbo’s example tell us?
4 Are there sandstorms in China? Where?
5 Have sandstorms in China increased or decreased recently? Why?
6 Why does traffic move slowly during the sandstorm?
7 What does the government do to protect Beijing from sandstorms?
2) Read the passage carefully and then fill in the chart with suitable words.
Parts
Content
Details
1
major disaster
2
description
Cause
influence
suggestion
3
measures
Suggested answers
Parts
Content
Details
1
major disaster
A mass campaign, to help solve sandstorm, tried many ways to solve it
2
description
Strong wind, dry, carry sand, So thick, can’t see the sun
Cause
Desertification,
Climate changes, cut down trees, dig up grass
influence
Orange sky, strong winds
suggestion
Stay at home, wear a mask
3
measures
Plant trees
Step 3 Post-reading
a. Decide if the following statements are true( T ) or false( F ).
①Scientists have tried many ways to deal with sandstorms
②Land becomes desert only because people cut down trees and dig up grass.
③The Chinese Central West Station can not forecast sandstorm before it comes.
④The desert is 25o kilometers away to the west of Beijing. So there is no need to take some measures.
⑤ Southwest China is part of the sandstorm center in Central Asia.
Step 5 Discussion
Q1.Sandstorms bring us not only “sand” but also-----? (traffic / health / travel / environment…)
Q2. As a senior student, what should we do to prevent sandstorms?
Homework:
Write a summary of the whole passage.
Finish the exercises 10,11 on page 88.
