Cambridge ielts 1-15 series reading answers explained

=>ANSWER: B
QUESTIONS 32-37: TRUE/FALSE/NOT GIVEN 
32
. The researchers who launched the field of AI had worked together on other projects in the past. 
Keywords
: researchers, AI, worked together, other projects, past 
Paragraph B says: “That said, different groups of researchers attacked different problems, fro
m speech recognition to chess playing, in different ways; AI unified the field in name only”. It means 
that a lot of researchers working on different problems and in different ways worked together in the 
field of AI, but we do not know if they had worked together on other projects before. 
=> NOT GIVEN
33
. In 1985, AI was at its lowest point. 
Keywords
: 1985, lowest, point 
In paragraph C, the writer says that: “Most researchers agree that AI peaked around 1985”. 

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41 
+ lowest point >
=>ANSWER: FALSE
34
. Research into agent technology was more costly than research into neural networks. 
Keywords
: research, agent, technology, costly, neural, networks 
Paragraph C states that: “Then when people realised these were hard problems, there
was 
retrenchment. By the late 1980s, the term AI was being avoided by many researchers, who op
ted instead to align themselves with specific sub-
disciplines such as neural networks, agent technology, case-based reasoning, and so on”. 
+ retrenchment: cutting down expenses, cost reduction. 
+ 
The writer gives no information about the cost comparison between research into agent technol
ogy and research into neural networks. 
=>ANSWER: NOT GIVEN
35
. Applications of AI have already had a degree of success. 
Keywords
: AI, degree of success 
In paragraph C, we learn that: “Prototypes of medical-diagnosis programs and speech-
recognition software appeared to be making progress…” Then, in paragraph D, the writer says 
that: “Ironically, in some ways AI was a victim of its own success”. a degree of success = making 
progress