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We now come to know that Jerusalem Viruses often attack computers on Fridays and that they are spreading(传播)to a list of computers. Among the countries that suffering computer viruses are Britain, Australia, Switzerland and the U.S. But till now, how to get rid of the terrible remains a problem. 61. The group of young men created the viruses to __________. A. damage the computers B. test their ability C. tell the world that they were intelligent D. play a trick on operators of the computers 62. According to the passage, computer viruses seem to _______. A. have been in nature for years B. exist(存在)in any computers C. be difficult to get rid of at present D. be able to be got rid of in the near future 63. The most serious damage caused by the viruses is that _______. A. the computer’s functions are lowered B. the normal programs are damaged C. almost all the information stored in the computers is gone D. the computers infected by the viruses can no longer be used 64. According to the passage, which of the following is true? A. Four countries found their computers were infected by viruses. B. The viruses will come to a new computer after staying in the old one for some time C. Scientists are trying to find a way to get rid of the viruses D. The Jerusalem Viruses are a great harm to human health. 65. What does the underlined phrase “lowering the function” mean? A. making the computer unable to work B. stopping the computers from working C. putting the computer to a lower position D. making the computer work not so well B Animals like the lion are known as carnivorous (meat-eating) animals. They feed on smaller animals. But many other animals eat grass or plants. They are called herbivorous (plant-eating) animals. You may be surprised to learn that there are carnivorous plants as well as carnivorous animals. Plants that grow in poor soil need other food. They trap (catch by a trick) small insects (昆虫) and take their bodies as food. The pitcher plant (猪笼草) is a common carnivorous plant. This plant has a clever trap like a pitcher or jar. It even has a lid to keep out of the rain. The mouth of the pitcher is covered with something sweet like honeydew(蜜露). Insects come to the plant to feed on the honeydew. When they have eaten all that is round the mouth, they go into the pitcher to look for more. There is more honeydew deep in the pitcher and they go down to feed on it. The inner (里面的) wall of the pitcher is covered with fine hairs. These hairs point downwards so that the insects cannot climb out of the pitcher. They are trapped in it. They die there, and their bodies are taken as food by the plant. 66. Animals are divided into two kinds. A. carnivorous animals and meat-eating animals B. herbivorous animals and plant-eating animals C. carnivorous animals and herbivorous animals D. meat animals and plant animals 67. Which of the following is NOT true? A. Tigers, lions and other meat-eating animals are called carnivorous animals. B. Zebras, elephants and common farm animals are known as herbivorous animals. C. All plants get food only from the soil. D. It is something like honeydew in the pitcher that insects come to food on. 68. From this passage, we can mainly learn that . A. Not all plants are carnivorous B. All plants are herbivorous C. Not all animals are carnivorous D. Carnivorous plants can also be found 69. The text mainly talks about ___________________. A. carnivorous animals B. herbivorous animals C. small insects D. pitcher plants 70. What kind of magazine can we find the text? A. Biology B. Geography C. Physics D. Chemistry C I’m sure you know the song “Happy Birthday”. But do you know who wrote the song and for whom it was written? (责任编辑：admin) |