Câu hỏi:
22/10/2023 244
Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes ____46___ ecosystems. If there is too little rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals____47___feed on it may also die or move away. Some changes are good for ecosystems. Some pine forests need fires for the pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets the seeds ____48___. Polluting the air, soil, and water can harm ecosystems. Building dams on rivers for electric power and irrigation can harm ecosystems ____49___ the rivers. Bulldozing wetlands and cutting down forests destroy ecosystems. Ecologists are working with companies and governments to find better ways of ___50____ fish, cutting down trees, and building dams. They are looking for ways to get food, lumber, and other products for people without causing harm to ecosystems.
Some changes ____46___ ecosystems
Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes ____46___ ecosystems. If there is too little rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals____47___feed on it may also die or move away. Some changes are good for ecosystems. Some pine forests need fires for the pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets the seeds ____48___. Polluting the air, soil, and water can harm ecosystems. Building dams on rivers for electric power and irrigation can harm ecosystems ____49___ the rivers. Bulldozing wetlands and cutting down forests destroy ecosystems. Ecologists are working with companies and governments to find better ways of ___50____ fish, cutting down trees, and building dams. They are looking for ways to get food, lumber, and other products for people without causing harm to ecosystems.
Đáp án chính xác
Câu hỏi trong đề:
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Trả lời:
Giải bởi Vietjack
D
Ở đây ta cần một động từ
Động từ harm: gây hại, làm hại
=> đáp án D
Câu hỏi cùng đoạn
Câu 2:
If a kind of plant dies off, the animals____47___feed on it may also die or move away.
Đáp án chính xác
Lời giải của GV VietJack
C
Ở đây ta dùng mệnh đề quan hệ “that” để thay thế cho the animals ở phía trước
=> đáp án C
Câu 3:
Heat from a forest fire melts the seal and lets the seeds ____48___.
Đáp án chính xác
Lời giải của GV VietJack
A
out: ngoài, ra ngoài in: bên trong, trong
go: đi fly: bay
=> đáp án A
Câu 4:
Building dams on rivers for electric power and irrigation can harm ecosystems ____49___ the rivers.
Đáp án chính xác
Lời giải của GV VietJack
B
on: trên around: xung quanh
over: bên trên under: bên dưới
=> đáp án B
Câu 5:
Ecologists are working with companies and governments to find better ways of ___50____ fish, cutting down trees, and building dams.
Đáp án chính xác
Lời giải của GV VietJack
A
To catch fish: bắt cá
=> đáp án A
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