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TEXT C
What makes for a successful invasion Often, the answer is to have better weapons than the enemy. And, as it is with people, so it is with plants—at least, that is the conclusion of a paper published in Biology Letters by Naomi Cappueeino, of Carleton University, and Thor Arnason, of the University of Ottawa, both in Canada.
The phenomenon of alien species popping up unexpected parts of the world has grown over the past few decades as people and goods become more mobile and plant seeds and animal larvae have hitched along for the ride. Most such aliens blend into the ecosystem in which they arrive without too much fuss. (Indeed, many probably fail to establish themselves at all—but those failures, of course, are never noticed.) Occasionally, though,
something goes bananas and starts ttarts to take the place over, and an invasive species is born. Dr. Cappuceino and Dr. Arnason asked themselves why.
One hypo
A. plant seeds are resistant to antibiotics.
B. people tend to hitch a ride.
C. there are more circulation of goods.
D. animal larvae become stronger.
[单项选择]What makes for a successful invasion Often, the answer is to have better weapons than the enemy. And, as it is with people, so it is with plants—at least, that is the conclusion of a paper published in Biology Letters by Naomi Cappuccino, of Carleton University, and Thor Arnason, of the University of Ottawa, both in Canada.
The phenomenon of alien species popping up unexpected parts of the world has grown over the past few decades as people and goods become more mobile and plant seeds and animal larvae have hitched along for the ride. Most such aliens blend into the ecosystem in which they arrive without too much fuss. (Indeed, many probably fail to establish themselves at all—but those failures, of course, are never noticed. ) Occasionally, though, something goes bananas and starts trying to take the place over, and an invasive species is born. Dr. Cappuccino and Dr. Arnason asked themselves why.
One hypothesis is that aliens leave their’ predators behind. Since the predator
A. plant seeds are resistant to antibiotics
B. people tend to hitch a ride
C. there are more circulation of goods
D. animal larvae become stronger
[单项选择]What makes for a successful invasion Often, the answer is to have better weapons than the enemy. And, as it is with people, so it is with plants—at least, that is the conclusion of a paper published in Biology Letters by Naomi Cappuccino, of Carleton University, and Thor Arnason, of the University of Ottawa, both in Canada.
The phenomenon of alien species popping up unexpected parts of the world has grown over the past few decades as people and goods become more mobile and plant seeds and animal larvae have hitched along for the ride. Most such aliens blend into the ecosystem in which they arrive without too much fuss. (Indeed, many probably fail to establish themselves at all—but those failures, of course, are never noticed.) Occasionally, though, something goes bananas and starts trying to take the place over, and an invasive species is born. Dr. Cappuccino and Dr. Arnason asked themselves why.
One hypothesis is that aliens leave their predators behind. Since the preda
A. plant seeds are resistant to antibiotics.
B. people tend to hitch a ride.
C. there are more circulation of goods.
D. animal larvae become stronger.
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Text 2 What we know of prenatal development makes all this attempt made by a mother to mold the character of her unborn child by studying poetry, art or mathematics during pregnancy seem utterly impossible. How could such extremely complex influences pass from the mother to the child There is no connection between their nervous system. Even the blood vessels of mother and child do not join directly. An emotional shock to the mother will affect her child, because it changes the activity of her glands and so the chemistry of her blood. Any chemical change in the mother’s blood will,affect the child ’ for better or worse. But we can not see how a liking for mathematics or poetic genius can be dissolved in blood and produce a similar liking or genius in the child. In our discussion of instincts we saw that there was reason to believe that whatever we inherit must be of some very simple sort rather than any complicated or very definite kind of behavior. It is certai
A. surely become a musician
B. possibly become a-doctor
C. become a’musician on the condition that all these factors are organized around music
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Text
What impressions are you making on the people around you Your words, phrases, even your message may soon be forgotten but believe me, good or (26) , your melody music.
The dictionary (27) melody as a succession of sounds. Just as music affects the moods and emotions of people, so does the way you live your (28) .
Think of your life as a (29) sheet of manuscript paper. Only the rhythm is there—it is (30) to you to create the harmony. Naturally you will want your composition to be a (31) . So where to (32) YOU MUST BEGIN (33) YOURSELF.
Be really (34) in other people. Make a conscience effort to bring peace and happiness into other people’s lives. (35) situations that generate excessive ambition, envy, anger, and pride. They are all (36) of peace and will play havoc with your harmony.
<
A. effort
B. mark
C. damage
D. effect
