题目

在“用天平称物体质量”的实验中，张强同学用已调节好的天平在称物体质量时，通过增、减砝码后指针偏在分度盘中线左边一点，这时应该A．把横梁右端螺母向右旋出一些            B．把横梁右端螺母向左旋进一些C．把天平右盘的砝码减少一些              D．向右移动游码  答案：D解析:天平使用时，首先调节天平平衡，然后就不需要动平衡螺母了，在称量物体质量时，通过增、减砝码后指针偏在分度盘中线左边一点，这时应当向右移动游码。 Bashert is a gentle, golden dog. In her mind, there is no human problem so big she can't lick(舔) better. When her owner is sad, she licks him to make him happy. When her owner feels upset, she licks him again to encourage him."When I go to camp, I miss Bashert a lot," Bashert's owner Aaron Richards, a 14-year-old boy in the US, told the New York Times.Animals like Bashert play an important part in people's lives. Whether it is a dog, a cat or a goldfish, people always enjoy their companionship(陪伴). But do you know that people also love animals for other reasons?When staying with animals, people can relax. Compared to the human world, the animal world seems to be simpler. People don't need to worry about being judged by words or behaviors. For children, they can forget grades and class performance. What they feel is warmth and acceptance without any conditions.Animals, especially pets, also teach people to learn responsibility. Besides feeding and cleaning them, you also need to care for them. When they are sick, take them to an animal hospital. When they feel lonely, just play with them for a while. When they get old, you should spend time with them and let them know that you will always love them. Such a caring heart also tells you to treat people in a nice way. Then, you will find yourself a much beloved person.根据短文内容，完成下列小题。1.What does Bashert do when her owner is sad?____________2.How old is Bashert's owner?_______________3.Do animals play an important part in people's lives?____________4.What are the other reasons that people love animals?______________5.What is the passage mainly about?_______________