【正文】 cape bad environment. 15. What is Paragraph 2 mainly about? A. Some activities of rabbits. B. Rabbits? ability to live in the wild. C. How fast the population of rabbits grows. D. The damage rabbits have caused to Australia. 16. How successful was the RabbitProof Fence? A. It failed in the beginning. B. It didn?t live up to expectations. C. It was unfinished for lack of money. D. It failed later for nobody protected it. 17. What would be the best title for the text? A. Rabbits and farming B. Efforts to control rabbits C. Rabbits: experts in burrowing D. Rabbits: unweled newers C Imagine you are on a beautiful tropical beach. The blue water shines in the sun, and the sand is warm under your feet. You notice a small fruit in the sand. It looks like a little green apple. You pick it up and smell it… it smells sweet. But whatever you do. Don?t take a bite! This is the fruit of the manchineel tree. It is the most poisonous tree in America. You can find it in Florida, as well as in the Caribbean, Mexico, and Central America. If you were to eat the fruit, it would taste delicious. But then your mouth would start to burn. Your throat would tighten and make it difficult to breathe. You could even die. The fruit isn?t the only risky part of the manchineel tree. The tree is full of milky white sap. Sap is a liquid that flows through a plant, like blood flows through a person. The manchineel?s sap is hazardous. If it gets on your skin, it will cause painful blisters. So don?t try to cut down these trees, because you could get sap all over you! And if you try to burn manchineel wood, the smoke will choke and blind you. Manchineel trees are dangerous, but they?re also an important part of the environments where they grow. Manchineels protect beaches with their strong roots. The roots help stop sand and soil from washing away. This is good for the plants, animals, and people living nearby. There aren?t many manchineel trees left in the world. So even though they?re harmful, people are trying to protect them. Still, if you see one, stay away! 18. What do we know about the manchineel tree? A. It looks ugly. B. Its fruit is dangerous. C. Its fruit tastes terrible. D. It grows in cool places. 19. What does the underlined word “hazardous” in Paragraph 4 probably mean? A. Clear. B. Smelly. C. Sweet. D. Unsafe. 20. What is the author?s purpose in writing the text? A. To help people choose fruit. B. To introduce the manchineel tree. C. To improve people39。 have set up B. were take place。 relaxed C. relaxing。 Now with a population over 80 million and largescale immigration, 46 is practically a miracle that Germany has a murder rate that is lower than New Zealand, a laid back(放松的 ) island far from the turmoil (動(dòng)亂 ) of Europe and the Americas. As for education, in the land 47 gave us Kindergarten, do you know that 48 increasing number of international students 49 (head) to Germany to do their postsecondary studies? In English, not German. The public universities are tuitionfree and as a German professor told the BBC a few years ago, “I wonder whether a 50 (China) student can understand us better than someone 51 a Yorkshire accent or some strange American accent.” At private universities you will pay tuition rates 52 (close) to those in the USA. 53 (fortunate), someone has to pay for free universities and public health care and in Germany the top marginal rate for 54 (person) taxes is 45%. It is true that the reputation of Germany has a lot of Turks. Turks make up a huge part of Germany?s foreign 55 (bear) population: over 1/4. Europe is the source for most of the other imm