题目

实验室准备多套“观察水沸腾”的实验装置，如图甲、乙所示． （1） 小明同学从水温升高到90℃时开始记录数据，以后每隔1min记录一次水的温度，直到水沸腾5min为止，实验数据如下表所示．分析下表数据可知，小明选择的是 （填“甲”或“乙”）图中的装置． 时间/min01234567891011温度/℃9092949698100101102102102102102 （2） 小莉、小华都选用了另外一种实验装置，她们绘制的沸腾图象如图丙所示，得到a、b两种不同图线，其原因是实验中她们One day，when 12-year-old Sean Redden went to a popular chat room on the Internet, he saw the name of someone he’d never seen there before, Susan Hicks. Her message was “ Would someone help me? I can’t breathe. Help me! I can’t feel my left side.”At first, Sean thought it was a bad joke and he told his mother Sharon Redden. But she asked, “ It’s not just some game, is it?The message was not a joke. “ Susan Hicks” was actually 20-year-old Taija Laitinen, a student working late at night at a college library near Helsinki, Finland---almost 7,000 miles away from Sean’s home in Texas. While searching the Internet, she began to feel terrible pain all through her body. The library was empty and the nearest phone was outside in the hallway. She couldn’t move that far because any movement caused the pain to get worse. Then as the pain became worse, she began typing her message for help in the chat room.“I don’t think it’s a joke, mom,” Sean said. He typed, “ Where are you? The letters appeared, “Finland.” Sean and Sharon couldn’t believe it. Not knowing what else to do, Sharon called the local police and explained the situation to officer Amy Schmidt. Schmidt told Sharon to try to get the sick girl’s phone number and address.Meanwhile, the Texas police called the international telephone operator and asked to be connected to the proper agency(机构) in Finland. The Texas police explained the situation and gave Susan’s address to the Finnish operator. When Sean heard that, he typed, “Help is on the way.”In the few minutes, the library door opened. Doctors and three policemen ran in. Taija turned once more to the computer, “ They are here. Thanks. Bye-bye.”1.At first when receiving the message for help, Sean__________.A. didn’t believe it B. took no notice of itC. called the police at once D. had a joke with the person2. What was the problem with the person who asked for help?A. She lost her phone.B. She couldn’t finish her workC. She was locked in the library.D. She felt pain and couldn’t move.3.What can we learn from the text?A. The policeman Sean’s mother called was in Finland.B. Susan Hicks was a friend of Taija Laitinen.C. Sean and his mother offered help in time.D. Sean had seen Taija Laitinen before.4. 4.What does the underlined phrase “ on the way.” refer to?A. There is a way B. to be arriving soonC. have a long way to arrive D. to have almost finished5. 5.What would be the best title for the text?A. Help yourself B. A helping handC. Help is on the way D. Help on the Internet