They felt such heat in the jungle （） they had never experienced before.

Questions 31 to 35 are based on the following passage:

Albert Schweitzer was born in 1875 in Alsace. At that time, it was a part of　Germany. His generous spirit was first awakened through his training as a Lutheran minister. Besides gaining a reputation as a preacher, he also became respected for his ability to play the organ. He was a man of many talents. His concern for other people turned his attention to medicine. He had also acquired doctoral degrees in philosophy and music. His wife took an interest in medicine too and became a nurse. Many people thought that he should remain and lecture　in Europe to have a strong impact on Western civilization. Though he listened to their suggestions, he ultimately decided to follow his own conscience. This led him to Africa. Albert had felt that all men should accept the responsibility of helping others. He felt particularly concerned for black Africans who had been exploited by white men. He earned the money he needed by performing on the organ and by lecturing. With this money he bought equipment and opened a hospital in Africa. He was a man of great strength who faced great problems with courage. The threat of war, the reality of imprisonment during World War, one as a German citizen, and the unbearable heat in Africa did not deter him at all. He believed that man could overcome these obstacles if he had a sense of idealism. He died in 1965.

31.Albert Schweitzer was ____.

A) a pianist C) a humanitarian

B) an African D) a nurse

32.He had talents for ____.

A) training his wife to be a nurse, giving concert and lecturing

B) giving medical care, lecturing, playing the organ

C) taking care of sick people, fighting as a soldier, lecturing

D) giving concert, making equipment, helping others

33.In spite of people’s suggestions, Albert decided to go to Africa ____.

A) because he was born there

B) because he wanted to help others particularly black Africans who had been exploited by white men

C) because he wanted to give a concert to African people

D) because he wanted to make money there

34.Why did the author think he was a man of great strength？

A) He always faced great problems with courage.

B) The threat of war and the reality of imprisonment during World War didn’t discourage him.

C) The unbearable heat in Africa did not deter him at all.

D) All of the above.

35.Albert Schweitzer lived to be ____.

A) 70 years old B) 80 years old

C) 90 years old D) 100 years old

The great whales are among the most fascinating creatures which __1__have ever lived on the earth, and one of them, the blue whale, is the largest. People in ancient times thought whales as fearsome __2__monsters of the ocean depths. So to hunt a whale, when one occasionally swam toward shore, he was high adventure. People __3__found the adventure was rewarding, too, for the oil and meat from one whale alone could heat and feed a village for a whole winter.

Whales resemble huge fish. They were referred by the ancients as __4__

“great fish,” and any whale beaching along the coasts of England was designated “the King’s fish” because it automatically belonged to the Crown.

Ever since those early times, human have felt whales a sense of __5__wonder mixed with an intense desire to capture, slaughter, and exploit. Now the slaughter has reached alarming proportions. __6__

Even though some species are protected by the regulations of the International Whaling Commission and theoretically all whale hunting is regulated, but the earth’s stock of whales is still being __7__depleted. In fact, some scientists worry that 100 years since now __8__there may be no whales left. If this happens, mankind will be blame for removing from the earth forever a remarkable and __9__awe-inspiring creature that always fed man’s imagination and __10__

made the world a more exciting place.

A.Electricity and magnetism

B.Electricity and heat

C.Heat and magnetism

D.Heat and light

A.A.The heat is supplied by human bodies only.

B.B.The heat is supplied by both human bodies and other heat-emitting objects.

C.C.The heat is supplied by both human bodies and conventional fuel.

D.D.The heat is supplied by human bodies， other heat-emitting objects， and conventional fuel.

A.machining

B.hot-forming

C.casting

D.heat treatment

A.it is artificially illuminated

B.it is made up of a concentrated beam of light

C.it sends out heat in all directions

D.its heat is increased by the heat of the sun

第二组

The only attention that heat exchanger should require is to ensure that the heat transfer surfaces remain substantially clean and the flow passages generally clear of obstruction. Indication that undue fouling is occurring is given by a progressive increase in the temperature difference between the two fluids, over a period of time, usually accompanied by a noticeable rise in pressure loss at a given flow.

Fouling on the sea-water side is the most usual cause of deterioration in performance. The method of cleaning the sea water-side surfaces depends on the type of heat exchanger. With shell-and-tube heat exchangers, the removal of the header covers or, m the case of the smaller heat exchangers, the headers themselves, will provide access to the tubes. Obstructions, dirt, scale etc., can then be removed, using the tools provided by the heat exchanger manufacturer. Flushing through with fresh water is recommended before a heat exchanger is returned to service. In some applications, such as piston oil cooling, progressive fouling may take place on the outside of the tubes. Most manufactures recommend a chemical flushing pr6cess to remove this in situ~ without dismantling the heat exchanger.

Plate heat exchangers may be cleaned by unclamping the stack of plates and mechanically cleaning the surface of each plate as recommended by the manufacturers. The plate seals may require replacement from time to time and here the manufacturers&39; instructions should be closely followed

By which of the following indication, can we conclude that the lube oil-sea water heat exchanger is unduly fouled？

A.the heat exchanger lube oil inlet temperature lowering

B.the heat exchanger sea-water outlet pressure rise

C.the heat exchanger temperature difference between lube oil and sea water increasing

D.the heat exchanger pressure difference between sea water inlet and outlet decreasing

A.heat-ui

B.heat-api-cfn

C.heat-api

D.heat-engine