问题 填空题

把红墨水分别滴到热水和冷水中,______水变色更快.这一现象表明,温度越高,分子______;各种形式的能______相互转化.机器运转时,轴和轴承部分发热是______能转化为______能.

答案

由于分子的运动和温度有关,温度越高则分子的运动越剧烈,故将红墨水滴到热水中时,热水变色更快;

自然界中的各种能量可以相互转化,而机器在运转时,由于轴和轴承之间有摩擦,从而消耗机械能而产生了内能;

故答案为:热;运动越剧烈;能够;机械;内.

单项选择题 A1/A2型题
阅读理解

A girl became a volunteer in the activities of Deathbed Care, which meant visiting and taking care of a patient suffering from an incurable disease with days numbered.

The girl was assigned to look after an old man suffering from cancer whose children lived abroad. Their living conditions were not satisfactory while the old man had a lot of savings. She was expected to comfort him and keep up his spirits.

Every Saturday the girl came on time to keep him company, telling him stories. When he was having an intravenous drip (静脉滴注), she would help massage his arms. The doctor found the patient much improved mentally. The old man began to involve himself actively in the medical treatment and he seldom shouted at others.

But something that happened made the doctor uneasy and puzzled. Each time the girl left, the old man would give her some money. The doctor did nothing to interfere (干涉), unwilling to offend the old man. A month later the old man showed evident signs of decline after suffering coma (昏迷) a few times.

When rescued from the latest coma, the old man told the doctor his last wish, “I have deep sympathy for the girl. Will you be kind enough to help her finish her studies?”

But the doctor knew that her family was well­off and she had no difficulty pursuing her studies. Sometimes she even came to the hospital in her father’s car.

When the girl came at the weekend after the death of the old man, the doctor told her the bad news. She was very sad and burst into tears. Then she handed $ 500 to the doctor, saying, “The old man had all along thought I came to do the job because of poverty. He gave me money so that I could continue my schooling.” Now he got the answer to the puzzle. In the last period of his life, the old man found it a real pleasure to be able to help a girl badly in need.

小题1:If you’re a volunteer in the activities of Deathbed Care, what kind of people do you have to attend to?

A.Patients with a lot of money.

B.Patients suffering from cancer.

C.Patients without many days left.

D.Patients living alone.小题2:What can we learn from the passage?

A.The doctor told the old man the truth.

B.The old man’s children were wealthy.

C.The girl’s father encouraged her to accept the money.

D.The girl didn’t accompany the old man when he died.小题3:What is the real reason resulting in the old man’s mental improvement?

A.The girl’s love and great care.

B.The pleasure of helping people in need.

C.The doctor’s medical treatment.

D.His children’s progress in life.