Câu hỏi:

08/08/2022 126

What is the most important purpose of the ozone layer?

Đáp án chính xác

Sách mới 2k7: Tổng ôn Toán, Lí, Hóa, Văn, Sử, Địa…. kỳ thi tốt nghiệp THPT Quốc gia 2025, đánh giá năng lực (chỉ từ 110k).

Tổng ôn toán Tổng ôn sử Các môn khác

Quảng cáo

Trả lời:

verified
Giải bởi Vietjack
Vai trò quan trọng nhất của tầng ozone là?
A. Bảo vệ mặt trời. B. Bảo vệ trái đất.
C. Phá huỷ chất hoá học. D. Cung cấp floruacacbon
“the ozone layer is the protective shield around the earth.” (tầng ozone là lớp chắn bảo vệ xung quanh trái đất.)
Như vậy vai trò của nó là bảo vệ trái đất
Chọn B

CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

Which of the following is TRUE according to passage?

Xem đáp án » 08/08/2022 658

Câu 2:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions
It is commonly believed that school is where people go to get an education. Nevertheless, it has been said that today children interrupt their education to go to school. The difference between schooling and education implied by this remark is important. Education is much more open-ended and all-inclusive than schooling. Education knows no limits. It can take place anywhere, whether in the shower or on the job, whether in the kitchen or on the tractor. It includes both the formal learning that takes place in school and the whole universe of informal learning. The agent (doer) of education can vary from respected grandparents to the people arguing about politics on the radio , from a child to a famous scientist. Whereas schooling has a certain predictability, education quite often produces surprises. A chance conversation with a stranger may lead a person to discover how little is known of other religions. People receive education from infancy on. Education, then, is a very broad, inclusive term; it is a lifelong process, a process that starts long before the start of school, and one that should be a necessary part of one’s entire life. Schooling, on the other hand, is a specific, formalized process, whose general pattern varies little from one setting to the next. Throughout a country, children arrive at school at about the same time, take the assigned seats, are taught by an adult, use similar textbooks, do homework, take exams, and so on. The pieces of reality that are to be learned, whether they are the alphabet or an understanding of the workings of governments, have been limited by the subjects being taught. For example, high school students know that they are not likely to find out in their classes the truth about political problems in their society or what the newest filmmarkers are experimenting with. There are clear and undoubted conditions surrounding the formalized process of schooling. 
In the passage, the expression “children interrupt their education to go to school” mostly implies that ..........

Xem đáp án » 08/08/2022 626

Câu 3:

What is the main purpose of the passage?

Xem đáp án » 08/08/2022 481

Câu 4:

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions
Today I’d like to begin a discussion on the problem of the heating up the earth. First, we’ll touch on the relationship between fluorocarbons and the ozone layer. You probably remember that the ozone layer is the protective shield around the earth. It is important to all life, because it filters out harmful ultraviolet light from the sun. Ozone itself, a form of oxygen, is regularly made by the action of the sun in the upper atmosphere. It is also regularly destroyed by natural chemical processes. The problem now is that too much of the ozone layer is being destroyed. Scientists suspect that certain chemicals, such as fluorocarbons, are contributing to the depletion of the ozone layer. And how do we use fluorocarbons? The most common uses are in spray cans and cooling systems. The chemical pollution from these fluorocarbons can account for some of the ozone losses that have been reported. There are, however, new studies linking the sun itself to the depletion of the ozone layer. We’ll go into that new study more next time. 
Who is the most likely speaker?

Xem đáp án » 08/08/2022 439

Câu 5:

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions
Mr. Faugel was convinced that students’ nervousness had affected their scores; to reduce the anxiety of these students who had already been tested, he gave 22 of them a beta blocker before readministration of the test. Their scores improved significantly. The other 8 students (who did not receive the beta blockers) improved only slightly. Secondtime test-takers nationwide had average improvements which were similar to those in Faugel's non-beta blocker group. Beta blockers are prescription drugs which have been around for 25 years. These medications, which interfere with the effects of adrenalin, have been used for heart conditions and for minor stress such as stage fright. Now they are used for test anxiety. These drugs seem to help test-takers who have low scores because of test fright, but not those who do not know the material. Since there can be side effects from these beta blockers, physicians are not ready to prescribe them routinely for all test-takers. 
The word “reduce” in paragraph 1 most nearly means .................

Xem đáp án » 08/08/2022 392

Câu 6:

When taking the university entrance exams, ..............

Xem đáp án » 08/08/2022 365

Câu 7:

When we moved to our new house near the sea, I was eight years old. Even before that I had spent every summer messing about on boats. My dad had taught me to sail before I learnt to ride a bike so I knew how I wanted to spend my time at the new house- I was going to get my own boat and sail it everyday. The house was only a few meters from the water's edge, and in rough weather the waves would come crashing into the front garden. I used to sit with my nose pressed to the glass, fascinated by the power of the ocean. I grew up watching the skies to see if it was going to rain; would I be going sailing that afternoon or not? Of course I sometimes wished I could live in the town like my friends. I used to get angry with my parents, who had taken early retirement because they seemed incapable of getting anywhere on time. Dad drove me the eight miles to school everyday, but I was often late because he had been walking on the cliffs earlier in the morning and had lost track of time. When I was taking my university entrance exams, I used to stay over at a friend's in town, just in case. All in all, I was lucky to grow up by the sea and I still love to sail.
Growing up by the sea, the writer felt ............

Xem đáp án » 08/08/2022 345

Bình luận


Bình luận
Đăng ký gói thi VIP

VIP 1 - Luyện thi tất cả các đề có trên Website trong 1 tháng

  • Được thi tất cả các đề của các lớp có trên Khoahoc.vietjack.com
  • Ngân hàng câu hỏi trắc nghiệm theo các mức độ Nhận biết, Thông hiểu, Vận dụng, Vận dụng cao.
  • Luyện chuyên sâu, rèn tốc độ với trọn bộ đề thi thử, đề minh họa, chính thức các năm.
  • Hỏi bài tập với đội ngũ chuyên môn cao của chúng tôi.

Đặt mua

VIP 2 - Luyện thi tất cả các đề có trên Website trong 3 tháng

  • Được thi tất cả các đề của các lớp có trên Khoahoc.vietjack.com
  • Ngân hàng câu hỏi trắc nghiệm theo các mức độ Nhận biết, Thông hiểu, Vận dụng, Vận dụng cao.
  • Luyện chuyên sâu, rèn tốc độ với trọn bộ đề thi thử, đề minh họa, chính thức các năm.
  • Hỏi bài tập với đội ngũ chuyên môn cao của chúng tôi.

Đặt mua

VIP 3 - Luyện thi tất cả các đề có trên Website trong 6 tháng

  • Được thi tất cả các đề của các lớp có trên Khoahoc.vietjack.com
  • Ngân hàng câu hỏi trắc nghiệm theo các mức độ Nhận biết, Thông hiểu, Vận dụng, Vận dụng cao.
  • Luyện chuyên sâu, rèn tốc độ với trọn bộ đề thi thử, đề minh họa, chính thức các năm.
  • Hỏi bài tập với đội ngũ chuyên môn cao của chúng tôi.

Đặt mua

VIP 4 - Luyện thi tất cả các đề có trên Website trong 12 tháng

  • Siêu tiết kiệm - Được thi tất cả các đề của các lớp có trên Khoahoc.vietjack.com
  • Ngân hàng câu hỏi trắc nghiệm theo các mức độ Nhận biết, Thông hiểu, Vận dụng, Vận dụng cao.
  • Luyện chuyên sâu, rèn tốc độ với trọn bộ đề thi thử, đề minh họa, chính thức các năm.
  • Hỏi bài tập với đội ngũ chuyên môn cao của chúng tôi.

Đặt mua

Vietjack official store