While cycling of sediments and nutrients is essential to a healthy ecosystem, too much sediment and nutrient in a waterway lowers the downstream water quality.. Other negative effects in[r]
Trang 1Đề thi Tiếng Anh lớp 8 giữa kì 2 năm 2021 - Đề 1
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Circle the word marked A, B, C or D with a different stress pattern from the others
1 A emergency B astrology C scientific D environment
2 A erupt B victim C forest D message
3 A scatter B earthquake C collapse D mudslide
Choose the word which has the underlined part pronounced differently from the others
4 A laughed B learned C changed D arrived
5 A follow B powder C show D borrow
6 A wood B thousand C procedure D hairdryer
Complete the sentences with the correct form of the verbs in brackets
7 We (email) her if we had her address
8 Would you go to his party if he (invite) you?
9 For over 130 years, Akubra hats (make) _ its legendary stories in Australia
Choose the correct answer A, B, C or D
10 _ more help, I would call my neighbor
A Needed
B Should I need
C I have needed
D I should need
11 Passengers to smoke in the train
A are not allowed
B had not allowed
C has not allowed
D will not allow
Trang 212 The roof may have been leaking for the past few weeks but you do not have to worry about it any longer It _now
A was repaired
B is repairing repaired
C has repaired
D is being repaired
13 Air pollution is severe in
A cities
B densely populated areas
C industrialised areas
D all of these
14 A forest fir e _ quickly and many trees
A raged/ killed
B burst/ harmed
C spread/ destroyed
D occurred/ cooked
15 After the earthquake struck the city, rescuers searched for _
A survivors
B survivals
C surviving
D survived
Circle the best answer A, B, C or D
Consequences of water pollution
Water pollution is a matter of concern nowadays because of its negative effects on the environment and human The first problem is that water pollution kills (16) organism Dead fish, crabs, birds and sea gulls, dolphins, and many other animals have been killed by (17) in their habitat Moreover, pollution (18) _ the
Trang 3natural food chain as well Pollutants such as lead and cadmium are eaten by tiny animals Later, these animals are consumed by fish and shellfish, and the food chain continues to be disrupted at all high levels Eventually, humans are (19) _ by this process as well People can get (20) such as hepatitis by eating seafood that has been (21) In many poor nations, there is always outbreak of cholera and diseases as a (22) of poor drinking water treatment from contaminated water (23) people don’t prevent pollution, not only the environment but also their health will be put at risk
16 A aquatic B atmosphere C underground D soil
17 A pollutes B Pollution C polluted D pollutants
18 A changes B disrupts C pollutes D clears
19 A affect B affected C affecting D effect
20 A illness B sickness C diseases D healthiness
21 A cleaned B poisoned C processes D prepared
22 A outcome B effect C way D result
23 A If B Unless C When D In case
Read the following passage and answer the question
Flood stands amongest the most devastating natural catastrophes Almost everyone is well aware of its negative impacts on human such as loss of human life, damage to property, destruction of crops, loss of live stocks, and deterioration of health conditions owing to waterborne diseases
However, flood can also have some positive impacts on the environment In many natural systems, floods play the key role in maintaining the ecosystem functions and biodiversity They link the river with the land surrounding it, recharge ground water systems and fill wetlands Moreover, floodwater often carries both sediment and nutrients, so it helps enrich the land For many species, flood trigger breeding events, migration, and dispesal The environmental benefits of flooding can also help the economy through things such as increased fish production, recharge of groundwater resources, and maintenance of recreational environments
While cycling of sediments and nutrients is essential to a healthy ecosystem, too much sediment and nutrient in a waterway lowers the downstream water quality Other negative effects include loss of habitat, dispersal of weed species and the release of pollutants such
Trang 4as chemicals, heavy metals and debris These can degrade aquatic habitats, lower water quality, reduce coastal production, and contaminate coastal food resources
24 What does the passage mainly discuss?
A Negative impacts of flood on human
B Negative impacts of flood on the ecosystem
C Effects of flood on the environment
25 What does the word “catastrophes” mean?
A disasters
B phenomena
C sources
26 In which way does flood affect human health as mentioned in the first paragraph?
A waterborne diseases
B loss of property
C loss of liver stock
27 Which is not mentioned as a way flood helps maintain the ecosystem functions and biodiversity?
A It recharges ground water systems
B It carries both sediment and nutrients
C It maintains recreational environments
28 What happens if there is too much sediment and nutrient in a waterway?
A Breeding events are triggered
B The quality of downstream water is lowered
C It maintains a healthy ecosystem
Reorder the words to make meaningful sentence
29 What/ you/ do/ about/ like/ Scotland?
30 English/ an/ in/ official/ is/ language/ Singapore/
Trang 5
31 Aquatic/ may/ also/ plants/ die/ of/ the/ polluted/ because/ water/.
Make questions for the underlined parts
32 The airplane takes off at 6pm tomorrow
33 The children visit their grandparents every two months
Rewrite the sentences using the word given in brackets
34 We don't trust Lan because she behaves badly (because of)
35 I can't understand him because he speaks so quickly (if)
-The end-Đáp án đề thi Tiếng Anh lớp 8 giữa kì 2 năm 2021 - Đề 1 Circle the word marked A, B, C or D with a different stress pattern from the others
Choose the word which has the underlined part pronounced differently from the others
Complete the sentences with the correct form of the verbs in brackets
7 would email
8 invited
9 have been made
Choose the correct answer A, B, C or D
Circle the best answer A, B, C or D
Trang 616 A 17 B 18 B 19 B
Read the following passage and answer the question
24 C 25 A 26 A 27 C 28 B
Reorder the words to make meaningful sentence
29 What do you like about Scotland?
30 English is an official language in Singapore
31 Aquatic plants also may die because of the polluted water
Make questions for the underlined parts
32 When does the airplane take off?
33 How often do the children visit their grandparents?
Rewrite the sentences using the word given in brackets
34 We don't trust Lan because of her bad behaviours
35 I can understand him if he doesn't speak so quickly
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