Cambridge IELTS 13 Reading Test 3-AC 

24 a reference to a change which occurs in babies’ brain activity before the end of their first year. Fill in the blank 1 of 3

25 an example of what some parents do for their baby’s benefit before birth Fill in the blank 2 of 3

26 a mention of babies’ preference for the sounds that other babies make Fill in the blank 3 of 3

Yama Dixit and David Hodell have found the first definitive evidence of climate change affecting the plains of north-western India thousands of years ago. By collecting the 32 Fill in the blank 1 of 5 of snails and analysing them, they discovered evidence of a change in water levels in a 33 Fill in the blank 2 of 5 in the region. This occurred when there was less 34 Fill in the blank 3 of 5 than evaporation, and suggests that there was an extended period of drought.

Petrie and Singh’s team are using archaeological records to look at 35 Fill in the blank 4 of 5 from five millennia ago, in order to know whether people had adapted their agricultural practices to changing climatic conditions. They are also examining objects including 36 Fill in the blank 5 of 5 , so as to find out about links between inhabitants of different parts of the region and whether these changed over time.

37 Finding further information about changes to environmental conditions in the region is vital. Fill in the blank 1 of 4

38 Examining previous patterns of behaviour may have long-term benefits. Fill in the blank 2 of 4

39 Rough calculations indicate the approximate length of a period of water shortage. Fill in the blank 3 of 4

40 Information about the decline of the Harappan Civilisation has been lacking. Fill in the blank 4 of 4