After living for two weeks as larvae, the monarchs attach themselves to leaves. Then they spin cocoons(茧).After a week, the cocoons open and the butterflies emerge, soon to begin their 2,500-mile flight northwards. Many of them die as they pass through such southern states as Texas and Louisiana. But first they lay more eggs. After a few weeks, a new generation of monarchs is ready to continue the journey. They—or their children or grandchildren—will reach Canada, where they spend the summer.
11．The Bruggers did not know where the quiet, constant noise came from because it was _______.
A．raining B．cloudy C．too bright D．windy
12．By the time the article was written, people had discovered______________.
A．1 monarch roost B．12 monarch roosts
C．13 monarch roosts D．400 monarch roosts
13．Before the Brugger’s discovery, people did not know_____________________.
A．how monarch butterflies lived in Canada
B．when monarch butterflies left Canada
C．what happened to monarch butterflies in Mexico
D．where monarch butterflies in Mexico came from
14．The monarch butterflies make their winter home in ___________________.
A．Canada B．Mexico
C．the U.S. D．Texas or Louisiana
15．The article provides information about monarchs’__________________.
A．migration, food and size B．food, size and number
C．migration, food and number D．migration, number and size
Passage 4
Questions 16 to 20 are based on the following passage.
The Yanomami are a people living in villages between 40 and 250 people in the Venezuelan rain forest. Since the 1960s, Napoleon Chagnon has studied several Yanomami villages, written a widely-read book called The Fierce People about the Yanomami and helped to produce several films about them. |
