22、
A.He'd better use other transportations next time.
B.He should go to see a doctor for some medicine.
C.He should tell the air attendants about his situation.
D.He should quit his job and get a less demanding one.
Questions 12 to 15 are based on the conversation you have just heard
23、听音频，回答下列问题：
A.Because they are books strongly recommended by others.
B.Because looking for books among the piles saves time and space.
C.Because books are the best teachers in the world.
D.Because these books are the containers of her good intentions.
24、
A.The books strongly recommended by others which she found impenetrable.
B.The books that she doesn't like first time round
C.The brilliant books which she won't have time to read them all.
D.The books written by people she knows.
25、
A.She should throw them away because they are out-dated
B.She should throw them away because the essence of the book has left in her soul.
C.She shouldn't throw them away because they are brilliant.
D.She shouldn't throw them away because they may be useful someday.
26、
A.She should throw the books written by people she knows right away.
B.She should keep the books written by people she knows all her life as keepsakes.
C.She should keep the books written by people she knows for the moment.
D.She should donate the books written by people she knows.
27、听音频，回答下列问题：
A.Mosquito repellent is a kind of medicine.
B.Mosquito repellent is a mosquito-driving chemical.
C.Mosquito repellent is a kind of job for mosquito-driving.
D.Mosquito repellent is a kind of machine to kill mosquito.
28、
A.DEET is the most effective chemical at present.
B.DEET is less effective than the new repellent.
C.DEET is much cheaper than the new repellent.
D.DEET is not available to both the rich and the poor.
29、
A.They will soon find a way to control the birth of mosquito.
B.They will soon find a way to invent more effective repellents.
C.They will soon find a way to manufacture cheaper and more effective repellents.
D.They will soon find a way to make the repellents harmless.
30、听音频，回答下列问题：
A.The water distribution is fair enough.
B.Some places will get a lot less, while others get a lot more.
C.Some places will get a lot less water pollution.
D.Some places will get polluted water distribution.
31、
A.A temperature rise of 22 degrees.
B.A temperature rise of 2-3 degrees.
C.A temperature rise of 33 degrees.
D.A temperature rise of 22-33 degrees.
32、
A.Because he wants to develop climate change models.
B.Because he wants to control global warming.
C.Because he wants to study water distribution.
D.Because he wants to open up a research center.
33、听音频，回答下列问题：
A.Babies begin learning when they go to school.
B.Babies begin learning when they are 5-6 months old
C.Babies begin learning when they are 1 year old
D.Babies begin learning on their first day of life, and even before birth.
34、
A.They can recognize andunderstand images.
B.They can recognize and understand tastes.
C.They can recognize and understand sounds.
D.They can recognize and understand pictures.
35、
A.Babies learned better when they were sitting up.
B.Babies learned better when they were lying down.
C.Babies leamed better when they were standing up.
D.Babies learned better when they were running.
36、
A.Parents' care may be linked to development in the brain.
B.The food they eat may be linked to development in the brain.
C.The body position may be linked to development in the brain.
D.The body weight may be linked to development in the brain.