Professor Karl Von Frisch, ____ scientists from Austria, spent many years of his life researching the amazing ways ____ honey-bees communicate in their dark hives.

   A. a;\                         B. the ; which             C. a; where             D. the; that

　　How does a bee tell the others where to find the flowers it has discovered?

　　In the early 1900s, Austrian naturalist Karl von Frisch puzzled over this curious problem. Fascinated with the ways honeybees worked together, Von Frisch began a deep study of their activities when they returned to their home called a hive. Von Frisch discovered that bees express themselves not only by feeling and tasting, but also by dancing. There was a means by which a bee communicated to other bees that it had found food. That was dance!

　　In fact, bees do two kinds of dances to tell other bees of their food discovery. First, there is a circle dance, in which the bee moves in a circle inside the hive. The circle dance is used when the food is not more than ten meters away. The second kind of dance done by the bee is a waggling dance. That is to say, the bee waggles the end of its body as it moves in a straight line, then it turns in a semicircle, runs straight again. The waggling dance is used when the food is more than ten meters away. Meanwhile, in the two dances, other bees gather around and closely follow the dancer. They smell the dancing bee that has found the food. The smell tells them where to find the flower and also what kind of flower to look for. For this really interesting work, Karl von Frisch won a Nobel Prize.

1．Bees communicate by means of the following EXCEPT ________.

[　　]

2．A circle dance is made ________.

[　　]

A．at the place where the bee finds food

B．on the way back home

C．when the bee is back at home

D．outside the hive

3．Which of the following statements may be TRUE?

[　　]

A．Karl von Frisch did the experiment to find out if bees had a language of their own.

B．In their spare time, bees often do two kinds of dances.

C．Bees can communicate to one another as human beings do.

D．In the circle dance, the bee waggles the hind half of its body.

阅读理解

　　An experiment was once done by Karl von Frish, in which he studied bee activities when they returned to their home called a hive (蜂房). The experiment showed that there was a means by which a bee communicated to other bees that it had found food. That was dance!

　　In fact, bees do two kinds of dances to tell other bees of their food discovery. First, there is a circle dance, in which the bee moves in a circle inside the hive. The circle dance is used when the food is not more than ten meters away. A second kind of dance done by the bee is a waggling (摇摆) dance. That is to say, the bee wiggles (摆动) the end of its body as it moves in a straight line, then it turns in a semicircle (半圆), runs straight again. The waggling dance is used when the food is more than ten meters away. Meanwhile, in the two dances, the bees smell the dancing bee that has found the food. The smell tells them where to find the flower and also what kind of flower to look for.

　　For this really interesting work, Karl von Frisch won a Nobel Prize.

1．Karl von Frisch won a Nobel Prize for ________.

[　　]

A．communicating with bees

B．having studied bees' activities

C．setting up an experimental base

D．the discovery of bees' looking for food

2．If the food is ________ away, the bee will move in a circle.

[　　]

3．Which of the following can show the waggling dance?

[　　]

A．

B．

C．

D．

4．The bees know where to find the food by the ________ of the bee that has found it.

[　　]

5．Which of the following statements may be true?

[　　]

A．Karl von Firsch did the experiment to find out if bees had a language of their own.

B．In their spare time, bees often do two kinds of dances.

C．Bees can communicate to one another as human beings do.

D．In the circle dance, the bee waggles the hind half of its body.

Each new school year brings fresh reminders of what educators call the summer learning gap. Some call it the summer learning setback. Simply speaking, it means the longer kids are out of school, the more they forget. The only thing they might gain is weight.

Most American schools follow a traditional nine-month calendar. Students get winter and spring breaks and about ten weeks of summer vacation. Some schools follow a year-round calendar. They hold classes for about eight weeks at a time, with a few weeks off in between. The National Association for Year-Round Education says there were fewer than three thousand such schools at last count. They were spread among forty-six of the fifty states.

But many experts point out that the number of class days in a year-round school is generally the same as in a traditional school. Lead researcher Paul von Hippel said, "Year-round schools don't really solve the problem of the summer learning setback. They simply spread it out across the year."

Across the country, research shows that students from poor families fall farther behind over the summer than other students. Experts say this can be prevented. They note that many schools and local governments offer programs that can help.

But calling them "summer school" could be a problem. The director of the summer learning center at Johns Hopkins, Ron Fairchild, said research with groups of different parents in Chicago and Baltimore found that almost all strongly disliked the term summer school”. In American culture, the idea of summer vacation is connected to beliefs about freedom and the joys of childhood. The parents welcomed other terms like "summer camp," "enrichment," "extra time" and "hands-on learning."

1.According to the first paragraph the summer learning gap         .

2.Compared to traditional schools, students in the year-round ones          .

3.Which of the following statements is true?

4.Why did almost all parents dislike the term “summer school”?

5.What would be the best title of this passage?