13.Natural health（十三单元）

1.a: 1 are known to be 2 is believed to be used 3 are also thought to have 4 is believed to have 5 is known to be 6 are known to be able

b: 2 past 3 past 4 past 5 present 6 past

c: 2 … is said to be good at helping you relax. 3 … are thought by scientists to have good memories. 4 … is believed by experts to have been used by our ancestors to cure headaches. 5 … is said by scientists to have been cut down more than 100 years ago.

6 … are known to actually do us harm.

2. a: 1 operating theatre 2 local anaesthetic 3 surgeon 4 diagnosis

b: 2 check up 3 symptoms 4 suffer 5 recovering 6 diagnosed 7 diet 8 get better

3. a: 1 A placebo is a substance with no active ingredients that is given to a patient.

2 A scientist is someone who does research, usually in a laboratory. 3 A diagnosis is a doctor’s opinion about a patient’s illness. 4 A symptom is a sign of illness in the body.

5 A general anaesthetic is a drug that makes you sleep during an operation so you do

not feel anything.

1 d 2 e 3 a 4 c 5 b

4. a: Speaker 1: Tell me, how is everyone?

Speaker 2: Well Katy’s in London and she’s feeling very sorry for herself.

Speaker 1: That’s because she’s feeling homesick, I suppose.

Speaker 2: Yes. And poor Dilshan’s exhausted.

Speaker 1: Why’s that?

Speaker 2: He’s working on a big project at university and he’s over anxious.

Speaker 1: What about Nick?

Speaker 2: His usual guilty self.

Speaker 1: Why does he always feel so guilty?

Speaker 2: He gets very jealous over Julia and then he feels guilty.

Speaker 1: What about Julia?

Speaker 2: She’s depressed.

Speaker 1: Because of Nick?

Speaker 2: No. She’s got no confidence in herself and then that gets her down. She cries a lot, and she isn’t sleeping very well.

Speaker 1: The poor thing. And how’s your grandma?

Speaker 2: Poor Grandma’s really inattentive. You never get the impression that she’s really with you, it’s like she’s in another world.

Speaker 1: Is there something on her mind?

Speaker 2: I don’t think so. I just think she lives in the past. She’s so nostalgic about the past, especially the 1940s when she was a teenager. She thinks life was so much better then.

Speaker 1: And that leaves Abby …

Speaker 2: Oh, Abby’s always in a panic.

Speaker 1: What makes her panic?

Speaker 2: Everything! She’s so absent-minded, she forgets everything and then panics. What a bunch, eh?

1 e 2 a 3 d 4 c 5 f 6 b

b: 3 can 4 on 5 that 6 very 7 that 8 ✓ 9 to 10 ✓ 11 to 12 at 13 ✓

c: 2 down 3 uneasy 4 on top of the world 5 uptight 6 over the moon 7 livid 8 irritable

5.a: tuberculosis, dysentery, diphtheria, typhoid, measles, smallpox, cholera

b:1 A shortlist was made and members of the public voted for the most important

medical breakthrough.

2 It includes all aspects of delivering clean water to homes and taking the dirty water

away.

3 Huge factories opened and people moved from the country to cities.

4 Because the lack of sanitation caused illnesses and infectious diseases.

5 He showed that cutting off a particular pump in London stopped the spread of

cholera.

6 Sewers and piped drinking water linked to people’s houses.

7 Deaths from diarrhoea and dysentery fell by 12%.

8 It said to account for 88% of the 1.8 million deaths in developing countries.

6. 2 c 3 a 4 d 5 d 6 b 7 c

Unit check

1.2 was prescribed 3 condition 4 was performing 5 felt 6 specialised 7 taking 8 symptoms 9 is believed 10 medicine

2. 2 b 3 a 4 a 5 a 6 b 7 c 8 c 9 a

3. 2 We were over the moon when we heard the news. 3 I’m on top of the world. 4 Don’t be so anxious. 5 He made a quick recovery. 6 She was suffering from a bad headache. 7 He’s very absent-minded. 8 The doctor wants to operate on the tumour.

9 I went to the doctor for a check-up.