Conversation 1
What did Mr. Brown do when Miss Li rang him up （）| Some people are lucky enough to be born
with a good sense of direction and even if they have only visited a place once,
they will be able to find it again years later. I am one of those unfortunate
people who have an extremely poor sense of direction and I may have visited a
place time after time, but I still manage to get lost on my way there. When I was a teenager, I was so shy that I never dared ask complete strangers the way and so I used to wander round in circles and hope that some miraculous (奇迹的) chance would bring me to the spot I was heading for. A lot of people do not like to admit that they do not know their hometown and will insist on telling you the way even if they do not know it; others, who are anxious to prove that they know their home town very well, will give you a long list of directions which you cannot possibly A. through practice B. by nature C. in the childhood D. after visiting a place repeatedly [填空题]When Louise Brown was born on 25 July 1978, she kicked off an era. The first "test tube baby" is a mother herself now, and she’s been joined by millions of others born with the (47) of in vitro fertilization (体外受精), or IVF. Now specialists wonder whether people who were conceived by IVF are likely to be (48) .
"By and large, the kids are just fine. It’s not like the kids having (49) arms or heads," says Carmen Sapienza, a scientist at Temple University. But none is older than their early 30s, and the vast (50) are under the age of 20, so they haven’t had time for long-term health problems to show up. One source of worry is that so many IVF babies have low birth weight. Children-conceived through IVF are more likely to (51) less than 2.5 kilograms than are babies conceived (52) . That could spell trouble ahead, because low-birth-weight babies often have long-term health problems. They’re more likely 我来回答: 提交
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