A: dissolved
B: vanished
C: faded
D: escaped
举一反三
- Many species of animals have now（ ）from the face of the earth. A: vanished B: died C: ceased D: extinct
- Many species of animals have now from the face of the earth.
- The rainforests are one of the most _______ places on Earth. There are so many species!
- According to the lectures, how many species have gone extinct on earth?（ ） A: 1000. B: 1 million. C: 1 billion. D: 2700.
- Questions 22 to 25 are based on the following passage. What has happened since the end of the Ice Age A: Many species have moved further north. B: Many new species have come into existence. C: Many species have developed a habit of migration. D: Many species have become less sensitive to climate.
内容
- 0
In a few years, this species could be _____ the face of the earth. A: wipe out B: wipe off C: wipe in D: wipe over
- 1
Many species of animals which once lived on the earth are no longer in ____.
- 2
( ) the earth to be flat, many feared that Columbus would fall off the edge of the earth.
- 3
Please identify the cause in each of the following situation. In recent decades, many people have poured into the cities and the cities have grown so large that now about 50% of the Earth's population lives in urban areas. A: The cities have grown so large. B: Many people have poured into the cities. C: Now about 50% of the Earth's population lives in urban areas. D: None of them.
- 4
Many species of animals which once lived on the earth are no longer _____. A: in existence B: in exist