10D

B. Read the article. Match the title to each paragraph.

(Đọc bài viết. Ghép tiêu đề đúng với từng đoạn văn.)

The Need for Sleep

_____

Why do we sleep? One thing we do know is that it's good for our physical and mental health. Physically, sleep helps prevent sickness and keeps our body healthy. Mentally, we study and work better when we sleep for about eight hours the previous night.

_____

In this century, lack of sleep is becoming a big problem. The average American sleeps less than seven hours a night - that's two hours less than a century ago. Our modern 24-hour-day lifestyle means that more and more of us are working at different times of the day-and-night. We often stay up late into the night, and some of us even work all night and sleep during the day. This is a problem because our body's natural clock is connected with the movement of the sun. If we don't sleep at night for long periods, it can be bad for our health.

_____

But perhaps the biggest problem comes from electric lights and screens. Modern cities use bright LED lights through the night, which changes the way we sleep. In addition, the screens of our computers, tablets, and smartphones all send out blue light. The bluer and brighter the light, the more difficult it is to get tired and go to sleep. As a result, some medical experts suggest that we shouldn't watch more than two hours of television per day, and that we should stop looking at screens (including phones) one hour before we go to bed. But how many of us will take this advice? 

lack (adj) not enough (of something) 

stay up (phrasal verb) not go to bed

a. A twenty-first century problem

(Một vấn đề của thế kỉ 21) 

b. The problem of light and screens

(Vấn đề về ánh sáng và màn hình)

c. Why do we need to sleep?

(Tại sao chúng ta cần ngủ?)

C. Read again. Answer each question. Circle Yes, No, or Doesn't say.

(Đọc lại bài viết lần nữa. Trả lời từng câu hỏi. Khoanh tròn vào từ “Yes – Có”, “No” – Không” hoặc “Doesn’t say – Không đề cập”)

D. Complete this summary using the words from the article. 

(Hoàn thành bản tóm tắt này bằng cách sử dụng các từ trong bài viết.)

Sleep is good for physical and (1) mental health. It helps stop (2) _____ and keeps us healthy. We also study and work (3) _____ when we sleep for (4) _____ hours. But in the twenty-first century, we aren't getting enough sleep. One reason is that we stay up (5) _____ or (6) _____ all night. Another reason is that (7) _____ light from screens keeps us awake. As a result, medical experts advise us to stop looking at screens (8) _____ hour before bed.

GOAL CHECK

(Kiểm tra mục tiêu)

In groups, prepare a presentation called “Why sleep is good for you”.

(Hoạt động theo nhóm, hãy chuẩn bị một bài thuyết trình có tên “Tại sao giấc ngủ lại tốt cho bạn”.)

1. List all the reasons why sleep is good for you. Use ideas from the article and add two of your own ideas. 

(Liệt kê tất cả những lý do tại sao giấc ngủ lại tốt cho bạn. Sử dụng ý tưởng từ bài viết và thêm hai ý tưởng của riêng bạn.)

2. Join another group and take turns giving your presentation. Did you give similar reasons? What was different?

(Tham gia vào nhóm khác và thay phiên nhau thuyết trình. Bạn có đưa ra những lý do tương tự không? Có gì khác biệt?)