Bài tập Tiếng Anh 11 (Global Success) - Unit 1: A long and healthy life

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UNIT 1: A LONG AND HEALTHY LIFE
PART I. VOCABULARY
New words (Từ mới)
Words
Type
Pronunciation
Meaning
1. antibiotic
(n)
/,ỉntibai'ɒtik/
thuốc kháng sinh
2. food poisoning
(n)
/fuːd ˈpɔɪzənɪŋ/
ngộ độc thức ăn
3. germ
(n)
/dʒɜːm/
vi trùng
4. give up
(ph. v)
/ɡɪv ʌp/
từ bỏ
5. infection
(n)
/in'fek∫ən/
bệnh lây nhiễm, sự lây nhiễm
6. ingredient
(n)
/in'gri:diənt/
thành phần
7. life expectancy
(n)
/ˈlaɪf ɪkspektənsi/
tuổi thọ
8. muscle
(n)
/'mʌsl/
sức mạnh cơ bắp
9. nutrient
(n)
/ˈnjuːtriənt/
chất dinh dưỡng
10. organism
(n)
/'ɔ:gənizəm/
sinh vật, thực thể sống
11. press-up
(n)
/ˈpres ʌp/
động tác chống đẩy
12. bacteria
(n)
/bỉk'tiəriə/
vi khuẩn
13. properly
(adv)
/ˈprɒpəli/
một cách điều độ, hợp lí
14. recipe
(n)
/'resəpi/
cơng thức chế biến
15. regular
(a)
/'regjulə[r]/
đều, đều đặn
16. spread
(n)
/spred/
sự truyền bá, sự lan truyền
17. star jump
(np)
/stɑː(r) dʒʌmp/
động tác nhảy dang tay chân
18. strength
(n)
/streηθ/
sức mạnh, sức
19. suffer
(v)
/ˈsʌfə(r)/
chịu đựng
20. treatment
(n)
/'tri:tmənt/
sự điều trị
21. tuberculosis
(n)
/tju:,bɜ:kjʊ'ləʊsis/
bệnh lao
22. virus
(n)
/ˈvaɪrəs/
vi-rút
23. balanced
(a)
/'bỉlənst/
cân bằng, cân đối
24. work out
(ph. v)
/wɜːk aʊt/
tập thể dục
25. cut down on
(ph. v)
/kʌt daʊn ɒn /
cắt giảm
26. diameter
(n)
/dai'ỉmitə[r]/
đường kính
27. disease
(n)
/di'zi:z/
bệnh, bệnh tật
28. energy
(n)
/'enədʒi/
sinh lực, nghị lực, năng lượng
29. examine
(v)
/ig'zỉmin/
xem xét, nghiên cứu, khám bệnh
30. fitness
(n)
/'fitnis/
sự mạnh khỏe, sự sung sức

PART II. GRAMMAR
Past simple vs. Present perfect (Thì QKĐ – HTHT)
PAST SIMPLE (QKĐ)
PRESENT PERFECT (HTHT)
Cơng thức
(+)
S + V2/ed
(-)
S + didn’t + Vn.m
(?)
Did + S + Vn.m

Cơng thức
(+)
S + has/ have + V3/ed 
(-)
S + has/ have + not + V3/ed
(?)
Has/ Have + S + V3/ed

Cách dùng
- Diễn tả một hành động xảy ra và chấm dứt hồn tồn trong quá khứ. 
My mother left this city 2 years ago. 
- Diễn đạt các hành động xảy ra liên tiếp trong quá khứ 
She came home, switched on the computer and checked her e-mails.
Cách dùng
- Nhấn mạnh đến kết quả của hành động
I have done my homework. I have read this book three times. 
- Kết quả mong muốn 
I have washed the car. (The car is clean now).

Dấu hiệu 
last night/ year/ month, yesterday, ago (2 years ago), in + năm trong QK (in 1999)
Dấu hiệu 
ever, never, just, already, recently, since, for twice, many times, ...
SỰ KẾT HỢP THÌ 
HTHT since QKD
Since QKD, HTHT
The workers of this factory have stopped working since the pandemic broke out.

CƠNG THỨC CHUYỂN ĐỔI QKĐ ĩ HTHT
1*. 4 câu đồng nghĩa:
The last time + S + V2/ed... + was + ktg + ago. (in/when)
S + haven’t / hasn’t + V3/ed + since/for + time.
S + last + V2/ed + ktg + ago. (in + năm / when + mđề)
It is/has been + time + since + S + (last) + V2/ed.
2*. Đây là lần đầu tiên làm gì:
Đề: S + have/has + not/never + V3/ed + before.
→ This/It is the first time + S + have/has + V3/ed.
3*. S + started/began + to V/Ving + ktg + ago. (in/when...)
= 	S + have/has + V3/ed + for + ktg. (since + mtg/mđề)
[* Chú ý coi chừng đề nĩ bắt đổi sang thể bị động HTHT]
4*. When + did + S + start/begin + to V/V-ing...?
= How long + have/has + S + V3/ed...?
= How long ago + did + S + start/begin + to V/V-ing...?
= How long is it since + S + V2/ed...?
5. When + was the last time + S + V2/ed...?
= When + did + S + last + V1...?

	A. PHONETIC
Exercise 1: Underline the weak form and double underline the strong form of the auxiliary verbs in the following short exchanges. Then practice them with your partner.
1. - A: Do you often work out in the morning?
- B: Yes, I do.
2. - A: Can you swim in the butterfly style?
- B: No, I can't.
3. - A: Have you ever practiced karate?
- B: Yes, I have.
4. - A: Aren't you an aerobics instructor?
- B: Yes, I am.
5. - A: Didn't you have time for the swimming practice yesterday?
- B: No, I didn't. I was busy yesterday.
6. - A: Has she joined a gym?
- B: Yes, she has.
7. - A: Can doing squats bum a lot of calories?
- B: Yes, it can.
8. - A: Shall we go now?
- B: I think we ought to.
9. - A: Must we go now?
- B: I think we must.
10. - A: Does lifting weights build our muscles?
- B: Certainly, it does.
Exercise 2: Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
1. 	A. smoked 	B. called 	C. photographed 	D. based
2. 	A. demanded 	B. lived 	C. questioned 	D. supposed
3. 	A. sugar	B. consume	C. muscle	D. obesity
4. 	A. vitamin	B. mineral	C. diet	D. fitness
5. 	A. medicine	B. energy	C. exercise	D. obesity
6. 	A. balanced	B. yoga	C. fatty	D. natural
7. 	A. vegetable	B. hygiene	C. sugary	D. longevity
8. 	A. naked 	B. looked 	C. booked 	D. hooked
9. 	A. concerned 	B. raised 	C. developed 	D. maintained
10. 	A. exactly	B. exist	C. exhaust	D. extinct
11. 	A. change 	B. poaching 	C. chemical	D. achievement
12. 	A. survive	B. prohibit	C. fertilizer	D. environment
13.	A. healthy	B. mental	C. strength	D. fitness
14.	A. health	B. enthusiasm	C. strength	D. without
15.	A. stopped	B. stayed	C. happened	D. changed
16.	A. pieces	B. muscles	C. decades	D. labels
17.	A. muscle	B. suffer	C. yoghurt	D. instruct
18.	A. fresh	B. diet	C. flesh	D. exercise
19.	A. yoga	B. fatty	C. balance	D. habit
20.	A. ache	B. chip	C. choose	D. cheese
Exercise 3: Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
1. 	A. nervous 	B. healthy 	C. verbal 	D. polite
2. 	A. natural 	B. dangerous 	C. unhealthy 	D. regular
3. 	A. infectious	B. essential	C. resistant	D. properly
4. 	A. lifestyle	B. frequent 	C. routine	D. balance
5. 	A. device	B. treatment	C. muscle	D. movement
6. 	A. replace	B. proper	C. instruct	D. routine
7. 	A. accept	B. contain	C. return	D. treadmill
8. 	A. regular	B. energy	C. position	D. diagram
9. 	A. infectious	B. attention	C. position	D. demonstrate
10. 	A. asleep	B. avoid	C. formal	D. remind
11.	A. capture 	B. discharge 	C. survive 	D. exhaust
12.	A. nutrient	B. vitamin	C. mineral	D. infection
13.	A. expression 	B. example 	C. friendliness 	D. superior
14.	A. fertilizer 	B. development	C. environment	D. advertisement
15. 	A. exercise 	B. prohibit 	C. operate 	D. cultivate
16. A. healthy	B. problem	C. amount	D. mental
17.	A. acupuncture	B. longevity 	C. environment 	D. establishment
18. 	A. prevent	B. injure	C. balance	D. suffer
19. 	A. fitness	B. disease	C. treatment	D. headache
20. 	A. longer	B. fatal	C. immune	D. careful
	B. VOCABULARIES AND GRAMMARS
fall
lead
include
help
ensure
give off
treat
workout
give up
stay

Exercise 1: Complete the sentences with the verbs given in the correct form.
1. How do you make this change and ensure a balanced diet?
2. A healthy lifestyle includes taking exercise and not smoking.
3. The fire doesn't seem to give off much heat.
4. One in seven road accidents is caused by drivers falling asleep at the wheel.
5. My father always leads a very active life.
6. It was difficult to treat patients because of a shortage of medicine.
7. Herbal products can help you to relax and sleep well.
8. Eat right to stay healthy.
9. I go jogging every morning and work out with weights twice a week.
10. Peter has decided to give up football at the end of this season.
Exercise 2: Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
1. During the COVID ___________, residents were advised to stay at home to avoid further spread of the disease.	
	A. pandemic	B. complication	C. side effects	D. enamel
2. There have been great advances in the ________ of cancer.
	A. treatment	B. diet	C. celebration	D. enthusiasm
3. You can change your eating habits and lead a healthier ________. 
	A. health	B. development 	C. lifestyle	D. muscles	
4. Computers are now being brought into this career to perform ________ tasks.
	A. possible	B. inactive	C. complete	D. repetitive
5. The instructions give a balanced ________ and protect against infections.
	A. physic	B. treatment	C. diet	D. injury
6. You must be very ________ if you do so much running.
	A. fit	B. active	C. complete	D. infectious
7. Regular exercise will help to strengthen your ________.
	A. lifestyle	B. muscles	C. treatment	D. development
8. We focus on the importance of ________ participation by elderly people in the life of the community.
	A. huge	B. contagious	C. repetitive	D. active
9. The doctor told him to ________ on his drinking.
	A. look at	B. cut down	C. work out	D. suffer from
10. I'm taking ________ for a throat infection.
	A. antibiotics	B. natural remedies	C. traditional therapies	D. acupressure
11. The screens _______ blued light that can prevent you from sleeping well.
	A. give away	B. give out 	C. give in 	D. give off
12. In order to have good _______, you should eat lightly and laugh cheerfully.
	A. spirit 	B. body 	C. health 	D. mood
13. Some alcoholics ________ liver cancer when they drink heavily.
	A. contain	B. repeat	C. develop	D. replace
14. Pregnant women should ________ certain foods such as raw eggs.
	A. eat	B. avoid	C. promise	D. apologize
15. Some _______ help the human body fight disease.
	A. animals	B. species	C. bacteria	D. diseases
16. Some unhygienic conditions encourage the _______ of disease.
	A. development	B. increase	C. decrease	D. spread 
17. Foot and mouth disease is caused by a highly _______ virus which animals either eat or inhale.
	A. infect	B. infection	C. infectious	D. infectiously
18. _______ for both men and women has improved greatly in the past 20 years.
	A. Life work	B. Life force	C. Life expectancy	D. Life skills
19. The poor boy had a serious chest ______ which had spread into his lungs causing a very painful cough.
	A. sickness	B. indisposition	C. infection	D. indigestion
20. A well- ______ diet is the key to a happy and healthy life.
	A. balanced	B. informed	C. preserved	D. mannered
21. The patient is _______ treatment, so there is nothing more we can do.
	A. resisting	B. defying	C. refusing	D. opposing
22. Some of the tasks required considerable physical ________.
	A. mineral	B. energy	C. muscle	D. strength
23. They are looking ________ ways to add further value to their products.
	A. about	B. up	C. for	D. to
24. His back injury may prevent him ________ playing in tomorrow's game.
	A. in	B. at	C. with	D. from
25. Cut down ________ fatty foods if you want to lose weight.
	A. for	B. with	C. at	D. on
26. Diseases that were once thought incurable can be treated ________ antibiotics
	A. with	B. under	C. in	D. about
27. She suffers ________ a rare bone disease.
	A. with	B. on	C. from	D. for
28. We _________since we left school. 
	A. don’t meet	B. haven’t met	C. hasn’t met	D. didn’t meet
29. Peter has played football ________ he was a child.
	A. for	B. so 	C. since	D. because
30. She _________ two miles and a half, and now she feels exhausted. 
	A. will have run 	B. was running 	C. has run 	D. has been running 
31. I haven’t met him again since we _________ school ten years ago. 
	A. have left 	B. leave 	C. left 	D. had left 
32. Ba ___________ the cap all day yesterday.
	A. wear	B. wears	C. weared	D. wore
33. This room _______ since I was born.
	A. has been painted	B. was painted	C. painted	D. has painted
34. Where_________ you__________ on the Tet holiday last year?
	A. do - go              	B. did - gone           	C. did – go	D. did - went 
35. I can’t find my eraser. Have you seen it ________?
 	A. never	B. before	C. recently	D. just
36. He can’t come with us because he has ________ broken his leg.
 	A. ever	B. never	C. yet	D. just
37. _______ people used to read more.
	A. Twenty years before 	B. Twenty years ago	C. For twenty years 	D. Since twenty years
38. I _______ there once a long time ago and _______ back since.
	A. was / have not been 	B. had been / was not	
	C. would be / had not been 	D. have been / will not be
39. In the past, people _________ to the beach more often.
	A. have gone 	B. used to go 	C. were going 	D. had gone
40. Where _________Nam from yesterday?
	A. am	B. is	C. was	D. Were
41. For the past five years, Iceland __________ in the first rank of educational achievement and improvement in women's economic conditions.
	A. have been	B. has been 	C. has have being	D. had been
42. I haven’t applied for this job ________.
 	A. just	B. never	C. ever	D. yet
43. Has Mary listened to the song ________ 2 hours?
 	A. for	B. never	C. ever	D. yet
44. He has gone to the UK for further education since he ______ upper secondary school.
	A. finished	B. is finishing	C. will finish	D. finish
45. Since my grandfather learnt to use Facebook, he ______ many interesting stories on it.
	A. had posted	B. is posting	C. posted	D. has posted
46. Our life ______ significantly since the Internet was invented.
	A. has changed	B. had changed	C. is changing	D. changes
47. Hung used to go swimming during summer months when he ______ young.
	A. is	B. has been	C. had been	D. was
48. Our village ______ cleaner since some environmental campaigns were launched.
	A. has become	B. had become	C. were	D. will be
49. The workers of this factory ______ working since the pandemic broke out.
	A. had stopped	B. stopped	C. stop	D. have stopped
50. Since Lan moved to Paris, I ______ anything from her.
	A. didn’t hear	B. haven’t heard	C. don’t hear	D. wasn’t hearing
56. She hasn’t met her family ________ a long time.
 	A. since	B. for	C. in	D. from
57. I have ________ drunk all the milk.
	A. already	B. yet	C. since	D.so far
58. Some students haven’t done their homework ________.
	A. before	B. yet	C. so	D. since
59. Men’s plateau in earnings _______ after the 1970s, allowing for the increase in women's wages to close the ratio between incomes 
	A. began	B. begin	C. begun	D. has begun
60. I__________ the bus yesterday.
 	A. can’t catch        	 B. didn’t catch            	C. not catch         	D. weren’t catch
Exercise 3: Mark the letter A, B, C, or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
1. People can fight infection more effectively if they eat a nutritious diet.
	A. injection                  	B. disease                 	C. hygiene                 	D. digestion
2. The first step in boosting Nagano’s life span was a campaign to reduce salt consumption and promote a healthier diet and lifestyle.
	A. decreasing                	B. reducing                 	C. increasing	D. maintaining
3. You should also exercise in the early morning when the weather is not too hot.
	A. have a rest             	B. do housework              	C. do homework         	D. work out
4. We should do exercise frequently and eat more fruits and vegetables to stay healthy 
	A. regularly	B. daily	C. rarely	D. immediately
5. All living organisms have to adapt to changes in environmental conditions.
	A. plants	B. animals	C. creatures	D. immediately
6. Research for more recent periods shows a surprising and continuing improvement in life expectancy among those aged 80 or above.	
	A. living standard        	B. longevity	C. life skills                  	D. lifeline
7. Edwin was feeling a little off colour, so he decided to stay in rather than go out for dinner.
	A. nervous	B. ill	C. confused	D. edited
8. An infectious disease can be passed easily from one person to another, especially through air or water
	A. serious	B. contagious	C. mental	D. common
9. Lack of sleep can lead to many health problems. We should sleep seven to eight hours a night.
	A. prevent	B. solve	C. result from	D. cause
10. At school, it was compulsory to attend gym class twice a week in order for the students to get some exercise.
	A. free of charge	B. required	C. necessary	D. optional
Exercise 4: Mark the letter A, B, C, or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
1. That area of the hospital is dangerous and must not be entered by any members of the public or patients without permission.
	A. vivid	B. risky	C. dangerous	D. secure
2. SARS-CoV-2 is super contagious, and researchers don’t yet know all the reasons why.
	A. harmless	B. infectious	C. spreading	D. active
3. If you haven't been active, begin slowly but consistently.
	A. inactive	B. impropriate	C. inadequate 	D. indifferent
4. Most of us need to lead more balanced lives to be healthy and happy
	A. blue	B. ill	C. down	D. upset
5. You risk serious injury or death if you are swimming and lightning strikes.
	A. trivial                   	B. dreadful	C. crucial 	D. negligible
6. minutes is enough time to use social media because the screens of electronic devices give off blue lights 
	A. release	B. absorb	C. emit	D. discharge
7. After receiving hundreds of job rejections, I decided that I needed to do something about my obesity.
	A. arrival                   	B. approval                      	C. refusal                     	D. rebuttal
8. Stress may weaken your immune system
	A. lengthen	B. enlarge	C. strengthen	D. shorten
9. Stretching will relax your muscles and prevent your joints.
	A. allow                 	B. avoid               	C. limit                       	D. protest
10. The new drug will be generally available from January.
	A. in general	B. practically	C. mostly	D. particularly
Exercise 5: Choose the correct words.
1. David has been/ was at the beach for hours. I think he's having a great time there.
2. Have your friends bought / Did your friends buy tickets for the concert yesterday?
3. My younger sister has started / started school six months ago.
4. So far this week we've seen / we saw two funny films on TV.
5. I've talked / I talked to my grandparents on the phone last week.
6. What's the noise? Have your neighbours bought/ Did your neighbours buy a new recently'?
7. Have you seen / Did you see Nick this week?
8. We've known/ We knew Ann and Tom for three years. We're really good friends n
Exercise 6: Give the correct forms of the verbs in brackets using simple past or present perfect. 
1. I (just / finish) have just finished my homework. 
2. Mary (already / write) has already written five letters. 
3. Tom (move) moved to this town in 1994. 
4. My friend (be) was in Canada two years ago. 
5. I (not / be) have not been to Canada so far. 
6. I (already / travel) have already travelled to London a couple of times. 
7. Last week, Mary and Paul (go) went to the cinema. 
8. I can't take any pictures because I (not / buy) have not bought a new film yet. 
9. (they / spend) Did they spend their holiday in New Zealand last summer? 
10. (you / ever / see) Have you ever seen a whale? 
11. Last night I (lose) lost my keys. I had to call my flatmate to let me in. 
12. I (lose) have lost my keys. Can you help me look for them? 
13. He (live) lived with his great grandmother for a few years - she died when he was eight. 
14. She (be) has been a teacher for ten years, and she still enjoys it. 
15. How many times (she/ go) did she go to the cinema last month? 
16. The floor looks dirty. I'm sure you (not clean up) haven’t clean up.
17. (you/enjoy) Did you enjoy the party last night? 
18. My bicycle isn't here. I think someone (just take) has just taken it. 
19. They (know) have known each other since they were children. 
20. They are the most kind-hearted people he (ever meet) has ever met.
21. He was late yesterday because he (be) was stuck in the traffic jam. 
22. Last year, he (donate) donated 99% of his fortune to charitable organizations. 
23. I (be) have been a member of this non-profit organization since 1996. 
24. Last month I (feel) felt happy when I cooked a meal for the elderly at a nursing home. 
25. She and her best friends (know) have known each other for over fifteen years. They still get together once a week. 
Exercise 7: Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions.
1. I have sent an email to Jack last week, but he hasn't replied. 	=> sent	
 A B C D
2. I feel at home in this village because we lived here for six years now. 	=> have lived
 A B C D
3. You can help prevent heart disease from changing your lifestyle. 	=> by
 A B C D	
4. I'm a big football fan, but I have been never the stadium. 	=> have never been
 A B C D
5. He is receiving treatment in cancer.	=> for	
 A B C D
6. We need some cholesterols to help our skin, brain, and other organs grow, but too much of it can cause 
 A B C D
health problems. 	=> them	
7. People who eat lots of red meat are at risk of develop heart diseases. 	=> developing	
 A B C D
8. Your body may not be able to fights infections naturally if your immune system is weakened.
 A B C D
	=> fight
9. I told him that if I drank coffee before bedtime, I can't sleep. 	=> couldn’t	
 A B C D	
10. Dr Lam said that we'd boost our immune system if we have a healthy lifestyle. 
 A B C D	=> had
Exercise 8: Complete the second sentence so that it has the same meaning as the first one. 
1. The company last won a trophy 20 years ago. 
	Ú The company hasn't won a trophy for 20 years.
2. The club has been successful for three years. 
	Ú The club started to be successful three years ago.
3. The team last won a home game in September. 
	Ú The team hasn't won a home game since September.
4. Peter hasn't scored a goal for 2 months. 
	Ú Peter last scored a goal 2 months ago.
5. The club started to play in this stadium in 2010. 
	Ú The club has played in this stadium since 2010.
6. She became the marketing manager 4 months ago. 
	Ú She has been the marketing manager for 4 months.
7. Thành last visited a centre for children with cognitive impairments two weeks ago. 
	Ú Thành hasn't visited a centre for children with cognitive impairments for two weeks.
8. His sister got injured three weeks ago, and she's still in hospital now. 
	Ú His sister has been injured for three weeks.
9. Mr. Thanh started teaching English in Ho Chi Minh City in 2018.
	Ú Mr. Thanh has taught English in Ho Chi Minh City since 2018.
10. The last time he met me was 5 months ago.
	@ He hasn’t met me for 5 months.
11. It is a long time since we last met.
	@ We haven’t met for a long time.
12. When did you have this computer?
	@ How long have you had this computer?
13. This is the first time I have had such a delicious meal.
	@ I haven’t had such a delicious meal before.
14. I haven’t gone to work for a month.
	@ The last time I went to work was a month ago.
15. I haven’t talked to him for 5 days.
	@ It is 5 days since I last talked to him.
16. We last celebrated Christmas 2 years ago.
	@ We haven't celebrated Christmas for 2 years.
17. Linda hasn’t had her teeth checked since last year.
	@ The last time Linda had her teeth checked was last year.
18. Michelle began to collect stamps in 2015.
	@ Michelle has collected stamps since 2015.
19. When did they start opening this shopping center?
	@ How long is it since they opened this shopping center?
20. I haven’t been to the zoo for over the year.
	@ The last time went to The 200 was over a year ago.
	A. LISTENING
Listen to the recording and decide whether the following statements are true or false.
Statements
True
False
1. The passage is about rugby.

ü
2. Eating fruits and vegetables is an important part of a healthy diet.
ü

3. The passage says you should not have junk foods and sweets
ü

4. Being active is important for living a long life.
ü

5. Doing yoga or playing rugby can help ensure a healthy lifestyle.
ü

Audio Script 
A Healthy Lifestyle
Some habits might help people live longer. Researchers think that the key is eating well and being active. Having a healthy diet is important. It's important to eat a good amount of fruits and vegetables. Not all foods are good for you, though. Having too many fruits can still be bad for you. You should also avoid junk foods and sweets. A treat once in a while isn't bad, but don't let them become a regular part of your diet. 
Being active is also important. Sometimes it can be hard to find an activity you like. You don't have to play a sport like rugby. You can walk or run. You can ride a bike or hike. You can do yoga or dance. It doesn't matter what activity you do. But it is important to do something. 
With these small changes, you will live a longer, healthier life!
	B. SPEAKING
Exercise 1: Choose the correct response. Then practice the short exchanges in pairs.
1.	A: Why should we brush our teeth at least twice a day?	
	B: a) To remove dental diseases.	B) To prevent plaque on your teeth.
2.	A: What's wrong with toothpicks?	
	B: a) They remove particles from your teeth.	b) They can damage your teeth at the base.
3.	A: Can you see any benefits of regular exercise?	
	B: a) It helps to reduce cholesterol leve

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