Directions: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.
Babies should sleep in their mother’s bed until they are at least three years old. The controversial advice comes from a paediatrician(儿科专家).
The paediatrician found that two-day-old babies who dozed(打瞌睡) on their mother’s chest slept better than those who 【小题1】 (place)in cots(幼儿床).
Sleeping alone makes 【小题2】 harder for mother and child to bond and damages the development of the brain, 【小题3】 (lead) to bad behaviour as the child grows up, researchers fear.
Dr Nils Bergman, at the University of Cape Town, South Africa, says that for ideal development, healthy newborns【小题4】 sleep on their mother’s chest for the first few weeks. After that, they should stay in the mother’s bed【小题5】 they are three or even four years old.
Sixteen infants were studied while they slept on their mother’s chest and in a cot by her bed. It 【小题6】(reveal)by monitoring that the baby’s heart was under three times as 【小题7】 (much)stress when he or she slept alone.
Being in a cot also affected sleep, with the babies’ brains less likely 【小题8】 (make) the transition between two types of sleep called active and quiet.
In the cots, only six out of the sixteen had any quiet sleep and its quality was far 【小题9】 (bad).
Making this transition is thought to be the key 【小题10】 the normal development of the brain.
