300 factories remained where they were although the dam was built. ___________________________（）

The part of the building below 0th floor ______.

A．remained where they were

B．cracked down because of the burning

C．was hammered down by the falling upper part

D．was safe after the attack

Have you ever wondered where these cute little teddy bears came from? They were named for President Theodore Roosevelt in 1902. President Roosevelt was on a hunting trip in Mississippi when members of the hunting party caught a black bear and tied him to a tree. President Roosevelt was called to the area to shoat the bear, which he refused to do and said it was a shame and showed poor manners.

The Washington Post newspaper ran a cartoon showing the President refusing to shoot the bear and people all over America saw the cartoon. Morris Michtom, a shopkeeper in Brooklyn, New York, placed two toy bears in the window of his shop. Mr. Michtom requested permission from the President to call them "Teddy Bears". The sweet little sweet bears with shiny button eyes were a delight with children everywhere. The Teddy Bears were made by Mr. Michtom's wife. Mr. Michtom formed a new business called the Ideal Novelty and Toy Corporation.

Today, Teddy Bears are treasured toys of children all over the world. They are also collected by people and many are displayed in museums. Teddy Bears are sold by many companies and you can find them in almost any toy store, dressed in costumes or with a ribbon around the neck.

President Roosevelt refused to shoot the bear because ______.

A．the bear was his friend

B．bears are not dangerous animals

C．it's a dishonor to shoot a tied up animal

D．the bear was beautiful

Have you ever wondered where the first doughnut( 炸面圈)was made? Who thought up the idea of a fried cake with a hole in the center?

No one knows for sure who made the first doughnut. Some people think that doughnut probably began in the 1800s as Dutch “ olykoeks ” or “oily cakes. those days, a cook would not want to waste any scraps of food. Leftover pieces of bread dough (生面团) were put into hot oil and fried. Olykoeks were tasty on the outside, but soft and uncooked in the center.

Some people say that the mother of a New England sea captain invented the first real doughnut. Her name was Elizabeth Gregory. She replaced the soft center with spices and nuts. But, Elizabeth ’s son, Captain Gregory, did not like nuts. He punched out the center, and the consequencewas the first hole in a doughnut.

Others say the real story is that Captain Gregory had difficulty steering his ship while trying to eat doughnut. He asked the ship’s cook to make his doughnuts with holes so he could hang them on the steering wheel! Others think that Captain Gregory saw holed cakes in Europe and brought the idea back to America with him.

During world war I, homesick American soldiers in Europe were served doughnuts by the Salvation Army. These brave women volunteering for the job were called “Doughnut Girls. ” They often worked in dangerous conditions near the soldiers, so the Doughnut Girls wore helmets and uniforms. The women made doughnut cutters out of a large can with a smaller can inside it to cut out the hole. They could set up a kettle of hot oil to fry the dough almost anywhere.

In the 1920s, doughnut machines were invented. Doughnuts were produced faster and easier than ever before. Still, many people preferred to make their favorite doughnuts at home.

1.The passage is mainly about_________ .

A.the popularity of doughnuts

B.the history of doughnuts

C.the inventors of doughnuts

D.the types of doughnuts

The first Dutch “ olykoek ” came into being probably because_________ .A.people did not like to eat fried food

B.cooks did not like to waste leftover food

C.Dutchmen liked oil cakes very much

D.cooks liked the soft center of cakes

In paragraph 3, the word “ consequence” probably means_________ .A.action

B.damage

C.problem

D.result

What was used to replace the uncooked center to improve doughnuts?A.Scraps of food

B.Jelly filling

C.Spices and nuts

D.Leftover bread dough

What can be inferred about the Doughnut Girls during world war I?A.They worked aboard a ship

B.They worked near battlefields

C.They used untested machines

D.They used helmets to cook doughnuts

请帮忙给出每个问题的正确答案和分析，谢谢！

An iron and steel works, with some satellite factories______to be built here.

A．is

B．are

C．was

D．were

The writer mentions "slaughterhouses" because they were the places where（ ）.

A．Ford's assembly line originated

B．Ford made his first car

C．Ford readjusted the assembly line

D．Ford innovated the disassembly line

The writer mentions "slaughterhouses" because they were the places where.

A．Ford's assembly line originated.

B．Ford made his first car.

C．Ford readjustedthe assembly line.

D．Ford innovated the disassembly line.