Cambridge ielts 1-15 series reading answers explained

=>ANSWER: 21. G; 22. A
QUESTIONS 23-26: COMPLETE EACH SENTENCE WITH THE 
CORRECT ENDING 
23. HOME MEDICAL AIDS 
Scan this keyword to find it in paragraph 8: “The increasing self-reliance of many elderly people is 
probably linked to a massive increase in the use of simple home medical aids.” This means that home 
medical aids allow old people to be more independent. 
+ independence = self-reliance 
=>ANSWER: G
24. REGULAR AMOUNTS OF EXERCISE 
In paragraph 9, the writer says: “Maintaining a level of daily physical activity may he
lp mental 
functioning,.., may prevent the brains of active humans from deteriorating”, which means that 
regular amounts of exercise may help prevent mental decline. 
+ regular amount of exercise = level of daily physical activity 
=>ANSWER: E
25. FEELINGS OF CONTROL OVER LIFE 
The connection between feeling of control and stress is mentioned in paragraph 10: “… found
a connection between self-esteem and stress in people over 70. In laboratory simulations of 
challenging activities such as driving, those who felt in control over their lives pumped out lower 
levels of stress hormones such as cortisol.” 
So feelings of control over life can reduce stress in difficult situations. 
+ difficult situations= challenging activities 
=>ANSWER: H
26. FEELINGS OF LONELINESS 
In paragraph 11, the writer says: ” …elderly people who felt emotionally isolated maintained higher 
levels of stress hormones even when asleep.” 
This means that feelings of loneliness may cause rises in levels of stress hormones. 
+ feelings of loneliness ~ to feel emotionally isolated 
=>ANSWER: C
CAMBRIDGE IELTS 6 – TEST 2 – PASSAGE 2
GREYING POPULATION STAYS IN THE PINK 

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73 
NUMERATION 
QUESTIONS 27-31: COMPLETE EACH SENTENCE WITH THE 
CORRECT ENDING. 
27. A DEVELOPED SYSTEM OF NUMBERING 
In the second paragraph, it is stated that: “As they (refer to “early humans” mentioned in the previous 
sentence) 
began to settle, grow plants and herd animals, the need for a sophisticated number system bec
ame paramount.” 
+ farming = settle, grow plants and herd animals 
+ a developed system of numbering = a sophisticated number system 
+ necessary = paramount 
So, a developed system of numbering was necessary when people began farming.