A. You will not be able to dive deeply enough.
B. You will not be able to float properly.
C. You will use up too much oxygen.
Giải bởi Vietjack
Tại sau hít sâu trước khi lặn là một sai lầm?
A. Bạn sẽ không thể lặn đủ sâu.
B. bạn sẽ không thể nổi đúng cách.
C. bạn sẽ sử dụng quá nhiều oxygen.
D. bạn sẽ bất tỉnh khi lặn.
Thông tin: This is a mistake, because it makes the body so light that you dive with difficulty.
Tạm dịch: Đây là một lỗi vì nó sẽ làm cơ thể trở nên nhẹ hơn và thật khó để lặn sâu
=> You will not be able to dive deeply enough.
Đáp án cần chọn là: AThe general impression of snorkelling the writer gives is that________.
Read the passage carefully and choose the correct answer.
The excitement of snorkelling in a clear tropical sea is hard to explain to someone who hasn't done it. If you expect to have the opportunity of trying it when on holiday, it is well worth bringing a snorkel if you can get hold of one. Experts now recommend a separate breathing tube.
Many swimmers take a deep breath before diving with a snorkel. This is a mistake, because it makes the body so light that you dive with difficulty. It is best to take a couple of deep breaths and then a normal relaxed breath in order to breathe in enough for dive. Don't take repeated deep breaths before diving because this can lead to shortage of oxygen, which causes unconsciousness without warning.
The backs of many snorkellers get badly burnt, for the snorkellers are so involved in the world below they forget about the dangers of sunburn. The sea does not protect your back from the rays of the sun, and it is best to wear a T-shirt. Snorkellers should also consider wearing shoes (or slippers), which may protect their feet from cuts from sharp rocks which can easily become infected.
What does the writer find difficult about snorkelling?
