1: fit

2: tofu

3: weight

4: bins

5: harms 

6: chapped

1 fit

2 tofu

3 weight

4 bins

5 harms

6 lips

1. Doing housework is a kind of exercise. lt helps keep you_____fit_________

2. Some of a vegetarian's main foods are _____tofu_________and vegetables.

3. Physical activities like running help you lose ______weight________

4. There should be more_______bins_______ in public places.

5. Reading in dim light _______harms_______ your eyes.

6. Cold weather causes _____chapped_________ and skin.

1. I’m tired. (Tôi mệt.)

A: I’m tired. 

(Tôi mệt.)

B: You can take a rest. 

(Bạn có thể nghỉ ngơi.)

A: Yes. 

(Vâng.)

B: You shouldn’t go out. 

(Bạn không nên đi ra ngoài.)

2. I have acne. (Tôi bị mụn trứng cá.)

A: I have acne. 

(Tôi bị mụn trứng cá.)

B: You should wash your face. 

(Bạn nên rửa mặt.)

A: Yes. 

(Vâng.)

B: You shouldn’t touch your face. 

(Bạn không nên chạm tay lên mặt.)

3. My hands are chapped. (Tay tôi bị nứt nẻ.)

A: My hands are chapped. 

(Tay tôi bị nứt nẻ.)

B: You can use hand cream.  

(Bạn có thể sử dụng kem dưỡng tay.)

A: Yes. 

(Vâng.)

B: You shouldn’t use chemical soaps. 

(Bạn không nên sử dụng xà phòng hóa học.)

1. My sister never drinks soft drinks.

2. Acne affects 80% of young people.

3. He has bread and eggs for breakfast.

4. We don’t eat much fast food.

5. Fruit and vegetables have a lot of vitamins.

đánh máy j nhanh z e hay copy mạng

1. chapped skin: da bị nứt nẻ

2. acne: mụn trứng cá

3. sunburn: cháy nắng

=> Acne is the most common skin condition among teenagers.

(Mụn trứng cá là tình trạng da phổ phiến nhất ở tuổi thiếu niên.)

1. 

=> Use some lip balm

=> use coconut oil

2

=> Eat less fast food , beef, ice cream

=> Eat more fruit and vegetables

3 => get anough sleep ,  7-8 hours a day

=> Don't go to bed too late

4 => keep warm and stay in bed

=> Drink plenty of water and eat light foof

5 => Avoid washing your hair every day

=> Take vitamins

1. Eating _coloured vegetables_____ and exercising can help you keep fit and stay healthy.

2. The Donate a Book event helps children in __mountainous areas____.

3. My brother spends a lot of time making models. That's his _hobby_____.

4. If you have __chapped lips____ , use lip balm.

5. There are many things you can do to help your _community_____.

6. I love __taking photos____ of the sunset.

A = 9/1.2 + 9/2.3 + 9/3.4 +...+ 9/98.99 + 9/99.100

   = 9. (1 - 1/2 + 1/2 - 1/3 + 1/3 - 1/4 + ... + 1/98 - 1/99 + 1/99 - 1/100)

   = 9. (1 - 1/100)

   = 9 . 99/100

   = 891/100

\(A=\frac{9}{2}+\frac{9}{6}+\frac{9}{12}+....+\frac{9}{3080}\)

\(A=9.\left(\frac{1}{2}+\frac{1}{6}+\frac{1}{12}+...+\frac{1}{3080}\right)\)chia hết cho 9 (Đpcm)

\(A=9.\left(\frac{1}{1.2}+\frac{1}{2.3}+\frac{1}{3.4}+....+\frac{1}{55.56}\right)\)

\(A=9.\left(1-\frac{1}{2}+\frac{1}{2}-\frac{1}{3}+\frac{1}{3}-\frac{1}{4}+...+\frac{1}{55}-\frac{1}{56}\right)\)

\(A=9.\left(1-\frac{1}{56}\right)=9.\frac{55}{56}\)

\(A=\frac{495}{56}\)