Grammar Unit 8 Tiếng Anh 12 Global Success

Adverbial clauses of condition and comparison

(Mệnh đề trạng ngữ điều kiện và so sánh)

- Mệnh đề trạng ngữ điều kiện đưa ra kết quả có thể xảy ra của một tình huống hay điều kiện, thật hoặc tưởng tượng. Nó sử dụng các liên từ như if (nếu), provided that (giả sử rằng), until (cho đến khi), hoặc unless (trừ khi).

Ví dụ:

+ What would you buy if you won the lottery?

(Nếu trúng số bạn sẽ mua gì?)

+ We can’t release injured animals into the wild unless they are treated and fully recovered.

(Chúng ta không thể thả động vật bị thương về tự nhiên trừ khi chúng được điều trị và hồi phục hoàn toàn.)

- Mệnh đề trạng ngữ so sánh miêu tả sự vật gì đó như kĩ năng, kích thước, hoặc số lượng với những vật khác nhau như thế nào. Nó sử dụng các liên từ như than (hơn), as…as (như), hoặc as (như là).

Ví dụ:

+ There are more endangered species today than there were 50 years ago.

(Ngày nay có nhiều loài có nguy cơ tuyệt chủng hơn 50 năm trước.)

+ Gibbons are as famous for their beautiful singing as they are for their swigging movements through the trees.

(Vượn nổi tiếng vì giọng hát hay cũng như những động tác chuyền cành qua những tán cây.)

Trắc nghiệm ôn tập bài học

Làm bài tính điểm ngay

Cùng củng cố kiến thức với 15 câu hỏi dưới đây. Chọn “Làm bài ngay” để bắt đầu trả lời và chấm điểm.

Câu 1
Choose the best answer to complete the sentence: "We cannot prevent the extinction of rare species _____ we take immediate and decisive action."
1. A.
  as long as
2. B.
  if
3. C.
  unless
4. D.
  provided that
Câu 2
Choose the best answer to complete the sentence: "Cheetahs cannot run _____ fast in thick forests as they do on open savannahs."
1. A.
  so much
2. B.
  as
3. C.
  more
4. D.
  than
Câu 3
Choose the best answer to complete the sentence: "You can join our volunteer wildlife conservation project _____ you are committed to working outdoors for at least two weeks."
1. A.
  unless
2. B.
  in spite of
3. C.
  although
4. D.
  provided that
Câu 4
Choose the best answer to complete the sentence: "Deforestation in tropical areas is occurring at a much faster rate _____ scientists predicted ten years ago."
1. A.
  as
2. B.
  so
3. C.
  that
4. D.
  than
Câu 5
Choose the best answer to complete the sentence: "What would happen to the marine ecosystem if coral reefs _____ completely due to rising sea temperatures?"
1. A.
  disappear
2. B.
  will disappear
3. C.
  disappeared
4. D.
  have disappeared
Câu 6
Choose the best answer to complete the sentence: "There are _____ endangered species in this national park than there were fifty years ago."
1. A.
  as many
2. B.
  much
3. C.
  more
4. D.
  the most
Câu 7
Choose the best answer to complete the sentence: "The injured sea turtle will not survive _____ it receives proper medical care immediately."
1. A.
  unless
2. B.
  provided that
3. C.
  if
4. D.
  because
Câu 8
Choose the best answer to complete the sentence: "Other female elephants in the herd look after orphaned calves _____ attentively as the biological mothers do."
1. A.
  more
2. B.
  less
3. C.
  as
4. D.
  than
Câu 9
Choose the best answer to complete the sentence: "Local communities will support wildlife protection programs _____ they receive tangible economic benefits from ecotourism."
1. A.
  as long as
2. B.
  even if
3. C.
  although
4. D.
  unless
Câu 10
Choose the best answer to complete the sentence: "The population of mountain gorillas is recovering more slowly _____ conservationists had initially expected."
1. A.
  as
2. B.
  than
3. C.
  that
4. D.
  like
Câu 11
Choose the best answer to complete the sentence: "Provided that the government _____ stricter penalties for illegal poaching, the rhino population will have a chance to recover."
1. A.
  enforces
2. B.
  had enforced
3. C.
  enforced
4. D.
  will enforce
Câu 12
Choose the best answer to complete the sentence: "We will lose many valuable medicinal plants forever _____ we take urgent measures to protect natural habitats."
1. A.
  in case
2. B.
  so that
3. C.
  whether
4. D.
  unless
Câu 13
Choose the best answer to complete the sentence: "The new solar-powered surveillance drones are not _____ noisy as traditional patrol helicopters."
1. A.
  than
2. B.
  as
3. C.
  more
4. D.
  very
Câu 14
Choose the best answer to complete the sentence: "Due to severe habitat loss, there are far _____ tigers living in the wild today than there were a century ago."
1. A.
  few
2. B.
  fewer
3. C.
  as few
4. D.
  fewest
Câu 15
Choose the best answer to complete the sentence: "Tourists are allowed to visit the nature reserve _____ they strictly follow the park rules and stay on designated trails."
1. A.
  provided that
2. B.
  unless
3. C.
  although
4. D.
  in order that