第1题
Why did it take the scientists so long a time to find the new planets?
A.Because they are much darker than their parent stars.
B.Because there are too many of them.
C.Because there is too much light in the universe.
D.Because they are next to a huge explosion.
第2题
Why is the woman so keen on the rock climbing?
A.Climbers can develop skills useful in other activities.
B.Climbing is not as expensive as other sports.
C.Learning to climb does not take very long time.
D.Climbers have the opportunity to be outside and enjoy the scenery.
第3题
Why is the woman so keen on the rock climbing?
A.Climbers can develop skills useful in other activities.
B.Climbing is not as expensive as other sports.
C.Learning to climb does not take very long time.
D.Climbers have the opportunity to be outside and enjoy the scenery.
第4题
How long did it take Sequoyah to develop his alphabet?
A.A few days.
B.Several months.
C.Twelve years.
D.All of his life.
第5题
Why is the woman so keen on the rock-climbing?
A.Climbers can develop skills useful in other activities.
B.Climbing is not as expensive as other sports.
C.Learning to climb does not take very long time.
D.Climbers have the opportunity to be outside and enjoy the scenery.
第6题
Why did you keep me () outside for so long?
A. wait
B. to wait
C. waiting
D. to waiting
第7题
Why did they miss the second restaurant?
A.It would be so long a distance to reach there.
B.It was not so romantic as they expected.
C.There was not enough money on their credit card.
D.They brought insufficient cash with them.
第8题
Why did the resistance of insects to man-made insecticides develop so rapidly?
A.Insects can develop ways of dealing with man-made insecticides as they do with natural poisonous chemicals.
B.Insects can be smarter than they used to be.
C.Insects can attract their mates to the same plant.
D.Insects will be attracted to farmers' crops in a time during a year.
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