A. can find their way back home in Jersey
B. are unable to recognize their parents
C. are unable to adapt to the wild
D. can produce a new species
According to the US government, wind farms off the Pacific coast could produce 900 gig watts of electricity every year. Unfortunately, the water there is far too deep for even the tallest windmills (see picture) to touch bottom. An experiment under way off the coast of Norway, however, could help put them anywhere. | |
完形填空。 | |
There are times when people are so tired that they fall asleep almost anywhere. We can see there is a lot of sleeping on the bus or train on the 1 home from work in the evenings. A man will be 2 the newspaper, and seconds later it 3 as if he is trying to 4 it. Or he will fall asleep on the shoulder of the stranger 5 next to him. 6 place where unplanned short sleep 7 is in the lecture hall where a student will start snoring (打鼾) so 8 that the professor has to ask another student to 9 the sleeper awake. A more embarrassing (尴尬) situation occurs when a student starts falling into sleep and the 10 of the head pushes the arm off the 11 , and the movement carries the 12 of the body along. The student wakes up on the floor with no 13 of getting there. The worst time to fall asleep is when 14 . Police reports are full of 15 that occur when people fall into sleep and go 16 the road. If the drivers are 17 , they are not seriously hurt. One woman"s car, 18 , went into the river. She woke up in four feet of 19 and thought it was raining. When people are really 20 , nothing will stop them from falling asleep-no matter where they are. | |