eap4 unit 4: climate change

8/3/2019 EAP4 Unit 4: CLIMATE CHANGE

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Unit 4: CLIMATE CHANGE

WHAT IS CLIMATE CHANGE?

The earth is getting warmer. Over the past 100 years

Earths temperature rose by about 1F. Scientists predict

that Earth will continue to warm by about 26F over

the next 100 years. That may not sound like much, but

think about this: During the last Ice Age, Earth was only

9F cooler than it is today, and large sheets of ice called

glaciers covered large parts of North America! The warming of Earths climate is called global

warming.

WHAT CAUSES CLIMATE CHANGE?

Scientists are not sure of what causes climate

change. Earth could be warming on its own,

however, most scientists believe that human

activity is speeding up the climate change. Earth

warms itself through a process called the

greenhouse effect. When sunlight enters Earths

atmosphere, it passes through a layer of

greenhouse gases. Greenhouse gases occur naturally, but humans also create them byburning fossil fuels. When sunlight hits Earths surface it bounces back toward the sky. The

greenhouse gases trap some of the sunlight on Earth and allow the rest to go back into

space, making Earths temperature warm. The process works much in the same way as a

greenhouse, hence its name. If there are too many greenhouse gases in the atmosphere, too

much sunlight may be trapped, making Earth warmer.

WHAT ARE THE EFFECTS OF CLIMATE CHANGE?

Scientists cannot predict exactly what will happen as

Earths temperature rises. They believe a rapid climate

change could upset the balance of the ecosystem,

causing some land and marine life to become extinct.

As temperatures rise, the worlds glaciers will melt

into the ocean, causing sea levels to rise between

several inches to three feet during the next 100 years. Higher sea levels could cause flooding

of coastal lands. Warmer ocean water could cause increased storm activity on the coasts

while areas away from the coasts may experience droughts. These are just a few of the

possible effects of global warming. (327 words)


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Meaning in Context: Match or Mismatch?

Match each target word with its appropriate meaning in context. You can look back to the

passage above to make sure that the meaning given is referred to what the context needs.

Also, its part of speech needs to be identified. The example was given for PREDICT.

Target words Meanings (Thai or English) Parts of speech

Predict Verb

Glaciers

Climate

Globe

Process

Layer

Occur

Create

Fossil

Fuels

Bounces

Hence

Atmosphere

Ecosystem

Extinct

Costal

Areas

Droughts

Play on Word Families

Find another form of the target words if possible. Then write it in the correct column that

indicates its part of speech. The sample for PREDICT was given.

Target words Verb Noun Adjective Adverb

Predict Predict Prediction Predictable Predictably

Glaciers

Climate


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Target words Verb Noun Adjective Adverb

Globe

Process

Layer

Occur

Create

Fossil

Fuels

Bounces

Hence

Atmosphere

Ecosystem

Extinct

Costal

Areas

Droughts

Grammar Focus: Modal verbs: All the auxiliary verbs except be, do, and have are

called modals. Unlike other auxiliary verbs only exist in their helping form, they cannot act

alone as the main verb in a sentence.

The modal verbs are:

CAN / COULD / MAY / MIGHT / MUST / SHALL / SHOULD / WILL / WOULD

Modal Example Uses

Can - We can control our own budgets.- I cannot join the party.

- Ability / Possibility- Inability / Impossibility

Could- I think they could pass the exam.

- Could you please say it again?

- Future Possibility

- Request

May

- Thailand may become a major economic country in

Southeast Asia.

- May I come in?

- Future Possibility

- Asking for permission

Might - He might become the winner of the competition. - Future Possibility

Must - You must be home by 10.- They mustnt disturb our meeting.

- Obligation / Necessity- Prohibition


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Modal Example Uses

Shall - Shall we eat now? - Suggestion

Should

- I think we should do it tomorrow.

- The population figures in Thailand should

increase next year.

- Recommendation

- Uncertain prediction

Will

- I will help you find your father

- The population figures in Thailand will increase

next year.

- Promise

- Certain prediction

Would

- Would you mind if I smoke here?

- Would you pass that sugar please?

- Would you like to play tennis this weekend?

Asking for: permission

request

invitation

Vocabulary: Word usage

Complete the following sentences with the words given.

atmosphere predict extinct global ecosystem

process create glaciers coastal bounces

1. The greenhouse effect is a _____ which Earth can warm itself.

2. Earth warmer could occur if there are too many greenhouse gases in the ______.

3. People also ______ greenhouse gases by burning fossils fuels.4. Scientists ______ that Earth will become much warmer over the next hundred years.

5. ______ can be been in large areas of North America.

6. Some land and marine creatures could become ______ because of a rapid climate change.

7. Scientists believe that higher sea levels could cause flooding of ______ lands.

8. The warming of Earths climate is known as ______ warming.

9. Sunlight ______ back toward the sky when it hits Earths surface.

10. Scientists believe that a rapid climate change could disturb the ______, casing the

extinction of some land and marine life.

Make each sentence as T (true) or F (false) according to the information in the passage

above. Use the dictionary to help you understand the words you are not sure of.

____1. The Earth will become much warmer over the next 10 years

____2. Some parts of North and also South America have been covered with large sheets of

ice called glaciers.

____3. Every Scientist is certain that human activity causes the climate change.

____4. The greenhouse gases are the process that Earth warms itself.


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____5. Greenhouse gases can occur without burning fossils fuels.

____6. Earth warm id derived from too many greenhouse gases in the atmosphere.

____7. What will happen as Earths temperature rises is surely predictable.

____8. Scientists believe a rapid climate change will definitely upset the balance of the ecosystem.

____9. Higher sea levels can cause increased storm activity on the coasts.

____10. The worlds glaciers may cause flooding of costal lands.

Modal Verbs VS Uses

Read the following sentences and put the correct modal verb in the blank.

will wont cannot could may

1. Scientists predict that Earth ________ continue to warm by about 2-6 F over the next 100 years.

2. Earth ________ be warming on its own. However, most scientists believe that human

activity is speeding up the climate change.

3. If there are too many greenhouse gases in the atmosphere, too much sunlight _________

be trapped, making Earth warmer.

4. Scientists ___________ predict exactly what _________ happen as Earths temperature rises.

5. As temperature rise, the worlds glaciers ________melt into the ocean, causing sea levelsto rise between several inches to three feet during the next 100 years.

6. Scientists believe a rapid climate change __________ upset the balance of the ecosystem,causing some land and marine life to become extinct.

7. Higher sea levels __________ cause flooding of coastal lands.

8. Warmer ocean water _________ cause increased storm activity on the coasts while areas

away from the coasts _________ experience droughts.

eap4 unit 4: climate change

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