In Henry's experiment，he connected the wire to______.A. a galvanometerB. an iron barC. a batteryD. an electromagnet

Passage Two

Questions 26 to 30 are based on the following passage.

The electromagnet was invented in England by William Sturgeon，who took an iron rod and bent it into the shape of a horseshoe. This “horseshoe” was coated with varnish and a layer of copper wire was wrapped around it. An electric current was passed through the wire，thus making the rod magnetic. The rod was now，because of magnetic attraction，able to support nine pounds of iron. In the US，a scientist named Joseph Henry improved on Sturgeon's electromagnet by insulating the copper wine with silk. He was able to wrap many turns of wire around an iron core without danger of short circuits between the turns. His magnet could hold 2,300 pounds. This experiment prompted Henry to try his hand at converting magnetism into electricity. First he coiled some insulated wire around an iron bar. connecting both ends of the wire to a galvanometer(电流表). The iron bar was placed across the poles of the electromagnet. Then the coil of the electromagnet was connected to a battery. The galvanometer indicated a voltage，then dropped to zero. Henry signaled his assistant to disconnect the coil. The galvanometer showed that once again a voltage had been produced，although this time in the opposite direction. The principle of electromagnetic induction had thus been discovered. Unfortunately for Joseph Henry he did not publish his findings and someone else(Faraday)got the credit for the discovery.

The principle of electromagnetic was discovered by______.

A. William Sturgeon

B. Joseph Henry

C. Faraday

D. someone else

What is NOT TRUE about Henry's electromagnet?

A. His magnet could. hold 2，300 pounds.

B. His magnet was more dangerous.

C. There were more turns of wire around the iron rod in his magnet.

D. His magnet was an improved model.

Passage Three

Nine-year-old Louis Pasteur rushed into the little house, his face white.

"Mother!" he cried, "A mad dog has bitten my friend Henry, and now they are burning him with red-hot irons. It's terrible!"

"Rabies(狂犬病), Louis. Burning the bites is the only hope of stopping Henry from catching the disease."

Henry did get rabies and died, in great pain, some days later. Louis Pasteur never forgot that. "One day," he thought, "I must do something to help people like Henry."

Sixteen years later Pasteur became a Doctor of Science. Arid he began making important discoveries in his special field.

Pasteur achieved great success in his life. But during the years of research he lost the use of his left arm and leg. Yet he worked on and on, as hard as ever, as he was eager to find a way for curing rabies. He never forgot his friend Henry.

After many dangerous experiments on mad dogs, he finally found the answer. Just then a boy who had been badly bitten by a mad dog arrived at his lab. A few days after Pasteur's treatment the boy got better. He did not catch rabies.

The discovery gave new hope to people in many countries. People sent money to help build the Pasteur Institute in Paris. Today it is one the world's most famous centers for research.

44. Pasteur became a Doctor of Science. Doctor of science here means______.

A. a degree which is the highest in science

B. a person who works in the lab

C. a post in science

D. someone whose job is to make sick people well again

The fact () he succeeded in the experiment pleased everybody.

A、blank

B、which

C、that

D、while

________ he discovered in his experiment is very important to us.

A、That

B、When

C、What

D、Where

28， Mr Henry always went to the town on foot because___________

A． the town was near to his village

B． he had no money to take a bus

C． he was afraid to take a bus

D． there is no bus there

Why did Sturgeon's electromagnet could support nine pounds of iron?

A. Because the iron rod was bent into the shape of a “horseshoe”.

B. Because the rod was coated with varnish.

C. Because a layer of copper wire was wrapped around the rod.

D. Because the rod was made magnetic by the passing current.

In Henry's experiment，the galvanometer indicated a voltage when______.

A. the coil was connected to a battery

B. the coil was disconnected to a battery

C. neither A nor B

D. both A and B

Priestley doesn’t think he has an iron will, and he is not sorry about it.()

He makes it a rule to keep record ( ) every experiment.

A、with

B、on

C、at

B

Mr Henry lived in a small village with high mountains all around it． All day he worked on his farm and never went to the city． Sometimes he went to the town which is not far away to buy something，but he always walked there and never took a bus or a train． His wife died after his only daughter was born* When the girl，Ann，grew up，she left her father and went to col-lege． Four years later Ann passed all her examinations and found work in a hospital in the cap-ital． As she was busy，she had no time to go back to see her father． But she missed her father very much， So she wrote to his father and asked him to come to the capital．

When Mr Henry heard from his daughter，he was quite happy and was soon ready to set off． The next day，as soon as he got to the station，he rang Ann up and told her the train he would take． At eight in the morning the train arrived at the Capital Station． Mr Henry had spent about sixteen hours on the train． As soon as he got off，he saw his daughter standing．there to meet him． Ann ran up to him and found that her father looked pale．

"What，s the matter with you，Dad?"Ann asked in surprise． "Do you feel unwell? "Nothing，"answered Mr Henry． "I，m just not used to sitting backwards(背朝前) in the train． ""Oh，dear，"laughed the girl． "Why didn’t you exchange seats with the man opposite to you?""How can I do that?"answered Mr Henry． "No man sat opposite to me！

( )26． Mr Henry was _________．

A． a worker

B． a driver

C． a farmer

D． a teacher