4The great monarch migration (P6)Choose the answer: 1. How often do monarch butterflies travel..., the butterflies will all stay on one treeC. the population of monarch butterflies is increasing after ……

monarch butterflies (北美帝王蝶) are famous for their long migration (迁徙). During the way, baby butterflies...帝王蝶迁徙不迷路！帝王蝶迁徙不迷路！  North American monarch butterflies (北美帝王蝶) are famous for their long ……

scenes – the yearly migration of the monarch butterflies (帝王蝶).When autumn arrives in the United States and Canada, you can see one of nature’s greatest scenes – the yearly migration of the monarch ……

been solved.Monarch butterflies use the sun to set their body clocks and make their journeys... in Mexico that their great-great-grandparents used the winter before.Past studies have shown ……

’s greatest scenes – the yearly migration (迁徙) of the monarch butterflies (帝王蝶).No other butterfly... about these butterflies is that they return to the very same trees in Mexico that their great-great ……

Mara National Reserve in early September. The annual great migration sees around two million... in the world is there a movement of animals as large as this migration. They traveled clockwise (顺时 ……

migration (迁徙). Read it and find out the ways animals spend the chilly days of winter.MigrationPerhaps the simplest winter survival strategy used by animals is migration. Why suffer through frigid (寒冷 ……

migration (迁徙). Read it and find out the ways animals spend the chilly days of winter.MigrationPerhaps the simplest winter survival strategy used by animals is migration. Why suffer through frigid (寒冷 ……

migration (迁徙). Read it and find out the ways animals spend the chilly days of winter.MigrationPerhaps the simplest winter survival strategy used by animals is migration. Why suffer through frigid (寒冷 ……

; the yearly migration (迁徙) of the monarch butterflies (帝王蝶).No other butterfly in the world... their great-great-greatchildren arrive in the north.3. What is the most amazing thing about the monarch ……

food. This is called migration (迁徙). Arctic terns (北极燕鸥) and Monarch butterflies (帝王蝶) do... to Antarctica (南极洲). Each spring, they come back to the north again.Monarch butterfliesMonarch ……

of monarch butterflies.C) The migration pattern of monarch butterflies.D) The environmental impact of the monarch butterfly’s life.听前预测通过选项的evolution，living habits, migration pattern，environmental ……

to Canada. He was inspired to do so by the great migration of the monarch butterfly (帝王蝶). Each year... to Canada. He was inspired to do so by the great migration of the monarch butterfly (帝王蝶). Each ……

it because of the great migration (迁徙) of monarch butterflies. Each year, millions of these butterflies... migration (迁徙) of monarch butterflies. Each year, millions of these butterflies travel up to 4,800 ……

Monarch Island. The sunshine was strong. We could not bear (忍受) it. The water was very clean. We could see the fish in the sea. We also saw a great number of coral reefs (珊瑚礁). The coral looked like ……