第三部分  概括大意和完成句子

Family Gardening

E D A C F C A E

The Paper Chase

A E F C B C A D

More Than 8 Hours Steep Too Much of a good Thing

E B A D F E A C

Soot and Snow: a Hot Combination

C A F B B E D A

US Signs Global Tobacco Treaty

B D A E B D E A

Many Benefits from Cancer Organization

C E A F B D A F

Science Fiction

A E C F A F C D

Alaska

F D C A D E C A

Architecture

C A B E B E A C

How to Argue with Your Boss

D E C B B D E C

Earthquake

C D A E A C D E

Transport and Trade

B A D E C D B E

Museums is the Modern World

C E A B B A E D

Volts from the Sky

C B F E F A B D

Geology and Health

D A B C E C B F

More Rural Research Is Needed

E A C B D A F C

Hurricanes

A F D C C A E F

Carl Sagan

B D F E B C D E

The Mir Space Station

B E C A F E D B

A Bit Good News for Fat People

C E D A B E F A