如图（甲）所示，用托盘天平测量物体质量．
（1）调节天平时，应将天平放在水平桌面上，将______移至标尺左端“0”点上，调节______使指针对准分度盘中央的红线．（以上两空选填“a”或“b”）
（2）称量时，物体放在______，砝码放在______．（以上两空选填“托盘1”或“托盘2”）
（3）称量某物体时，当指针在分度盘中央红线附近左右摆动的幅度相等时，盘内砝码及游码的示数如图（乙）所示，该物体的质量m=______g．
（4）日常生活中，称量物体质量的工具还有______（请任意写出一种即可）
（1）调节天平时，应将天平放在水平桌面上，将游码（a）移至标尺左端“0”点上，调节平衡螺母（b）使指针对准分度盘中央的红线；
（2）称量时，物体放在左盘（托盘1）；砝码放在右盘（托盘2）；
（3）物体的质量m=100g+20g+2.4g=122.4g；
（4）日常生活中，称量物体质量的工具还有台秤、案秤等．
故答案为：（1）a；b；（2）托盘1；托盘2；（3）122.4；（4）台秤．
阅读下面短文，从短文后所给的各题的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。 As soon as I saw the cat in our yard, I knew he was a stray（流浪儿）.He looked -a wounded warrior with a badly scarred body. I started putting out food for him each day, but he wouldn’t come near me if other people were . Winter came, and he still wouldn’ t us. Then, one day, a car hit him so we took him to the vets. After a week, we were eager to bring him home to our family. But when we went to take the cat home, the vet told us we should put him to immediately because the cat was so fierce and mean that he would become tame, let alone a pet. But I have always had in love’s power to even the wildest beasts. I told the vet, "I want to take him home.” We him Paws. Three days went by, and we only knew Paws was the bed because when we walked past it we heard deep growling. 1 wanted to somehow let him know he was and loved. So I put on a hard hat and a pair of welding gloves. 1 under the bed toward Paws, with my face to the and only the top of my head facing him. 1 out to stroke (抚摩) him gently over and over again. He growled and tried to and bite me. It was scary but I knew he couldn’t me, so I just kept going. Slowly, he began to . Then I slid out from under the bed and left the room. Several hours later. I noticed a cat on the bed. It was Paws all on the pillows! I couldn’t believe it. That dear cat became the of our household. Although Paws finally died of cancer, his legacy (馈赠)-my and firm belief in the power of love lives on.
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