Page 8 - SGK Tieng anh lop 8 thi diem tap 2

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D Decide which sentence in each pair of
sentences is a cause and which is an eff ect.
Vocabulary Write C (for cause) or E (for eff ect) next to
each sentence. Note that the words in
Complete the table with appropriate verbs, brackets relate to Activity E.
nouns, and adjectives.
1. People throw litter on the ground. Many animals
Verb Noun Adjective eat the litter and become sick. (because)
to poison (1) _______ poisonous 2. Ships spill oil in oceans and rivers. Many aquatic
(2) _______ contamination contaminated animals and plants die. (lead to)
contaminant 3. Households dump waste into the river. It is
to pollute pollution (4) _______ polluted. (so)
(3) _______ 4. Their children have birth defects. The parents
to die (5) _______ dead were exposed to radiation. (since)
to damage damage (6) _______ 5. We can’t see the stars at night. There is too
much light pollution. (due to)
Complete the sentences with the words from
E Combine the sentences in each pair into
the table in . You do not need to use all the a new sentence that shows a cause/ eff ect
words. The fi rst letter of each word has been relationship. Use the cause or eff ect signal
provided. word or phrase given in brackets. You will
have to add, delete, or change words in most
1. The p_______ chemical waste is dumped into
the river. sentences.
Example:
2. Do you know what p_______ cause air pollution?
1. Because people throw litter on the ground, many
3. The d_______ fi sh are fl oating in the water. animals eat it and become sick./ Many animals
4. Don’t drink that water. It’s c_______. eat the litter and become sick because people
5. The acid rain has caused d_______ to the trees in throw it on the ground.
this area. Work in groups. Look at the pairs of pictures.
6. If we p_______ the air, more people will have Give as many sentences as possible to show
breathing problems. cause/ eff ect relationships.
1.
CAUSE EFFECT →
Here are some words and Here are some words and phrases
phrases you can use to signal you can use to signal the Example:
the cause of a problem: eff ect of a problem:
People cough because they breathe in the fumes
because/ since + clause so + clause from cars.
Example: Example: The fumes from cars make people cough.
Because/ Since the water is The water is polluted, so the fi sh 2.
polluted, the fi sh are dead. are dead.
→
due to/ because of + sth to cause sth/ to lead to sth/
to result in sth
Example:
The fi sh are dead due to/ Example: 3.
because of the polluted water. The polluted water causes/ results
in the death of the fi sh. →
To make sb/ sth do sth
Example: 4.
The polluted water makes the
fi sh die. →

8 Unit 7/ Pollution