阅读理解

　　Sabine Island, near Greenland, was first discovered by the British geographer Sir Edward Saltine in 1823, but an 1869 map showed it was actually a quarter of a mile farther west than its discoverer had mapped. This interested Alfred Wegener, a young geographer working in Greenland in 1910. He thought the error was too great to be explained.

　　Wegener himself took measurements and found that since 1869 the island had moved another five-eighth of a mile. After checking the position of other Arctic landmasses, he concluded that all of them were drifting westward at different speeds.

　　From this finding，Wegener developed his floating continent theory. He imagined an original super-continent making up the infant(未成年的)earth, finally the mass broke up into several pieces--the present continents. The continents do seem to fit together like pieces of a puzzle, and what's more, some of the mountain ranges(山脉)of different continents line up rather well, as if the landmasses were at one time connected. However. believable as Wegener's argument appeared, many geographers refused to accept it. Exactly how the continents were formed is still a leading mystery in geography, though today many geographers are returning to the continental drift theory.

1．Sabine Island was first discovered and mapped by _____.

[　　]

A．the map makers of 1869

B．geographers of Greenland

C．a British geographer

D．Alfred Wegener

2．Wegener's discovery led him to conclude that _____.

[　　]

A．both the two earlier maps were in error

B．the Arctic landmasses were slowly drifting westward

C．all the continents were drifting slowly away from one another

D．Sabine Island was one part of Greenland

3．From the passage we can conclude that _____.

[　　]

A．Wegener liked to make things for granted

B．Wegener had a true scientific attitude

C．how the continents were formed is found out

D．the continental drift theory needs further testing

阅读理解

　　Sabine Island, near Greenland, was first discovered by the British geographer Sir Edward Saltine in 1823, but an 1869 map showed it was actually a quarter of a mile farther west than its discoverer had mapped. This interested Alfred Wegener, a young geographer working in Greenland in 1910. He thought the error was too great to be explained.

　　Wegener himself took measurements and found that since 1869 the island had moved another five-eighth of a mile. After checking the position of other Arctic landmasses, he concluded that all of them were drifting westward at different speeds.

　　From this finding，Wegener developed his floating continent theory. He imagined an original super-continent making up the infant(未成年的)earth, finally the mass broke up into several pieces--the present continents. The continents do seem to fit together like pieces of a puzzle, and what's more, some of the mountain ranges(山脉)of different continents line up rather well, as if the landmasses were at one time connected. However. believable as Wegener's argument appeared, many geographers refused to accept it. Exactly how the continents were formed is still a leading mystery in geography, though today many geographers are returning to the continental drift theory.

1．Sabine Island was first discovered and mapped by _____.

[　　]

A．the map makers of 1869

B．geographers of Greenland

C．a British geographer

D．Alfred Wegener

2．Wegener's discovery led him to conclude that _____.

[　　]

A．both the two earlier maps were in error

B．the Arctic landmasses were slowly drifting westward

C．all the continents were drifting slowly away from one another

D．Sabine Island was one part of Greenland

3．From the passage we can conclude that _____.

[　　]

A．Wegener liked to make things for granted

B．Wegener had a true scientific attitude

C．how the continents were formed is found out

D．the continental drift theory needs further testing