题目: 下列词语中加粗的字,每对读音全都不相同的一组是[ ]A.曝光/曝背谈天 脊骨/贫瘠 薄暮/喷薄而出B.贻误/贻笑大方 游弋/戈壁 吭声/引吭高歌C.犄角/掎角之势 饿殍/蜉蝣 重创/安土重迁D.契机/锲而不舍 模样/模仿 枕藉/杯盘狼藉 答案: 答案:D
题型:选择题 一辆车在光滑水平地面上匀速滑行,车上以相对地面的速度v向行驶正前方抛出一质量为m的物体,结果车速减为原来的3/4.接着又以同样的对地速度v向前再抛出一质量为m的物体,此时车速减为最初速度的( )A.不到一半B.一半C.超过一半D.无法确定 查看答案
题型:完形填空 Scientists think that there has been life for__31_ of years. However we haven’t found life on other planets _32_ . The earth is a planet and it _33__ around the sun. Seven other planets also go _34_ the sun. The sun and its planets are __35 the solar system. The solar system is a small part of our galaxy. Scientists __36_ lots of spacecraft to look at other planets in the solar system, and some spacecraft have gone __37_ the solar system. However, no one __38_ any life in space yet. But why has no one from other planets sent us a message ? Have they tried to send _39_ to us ? _40_so many stars in the universe, are we alone, or is there life out there in space ? We don’t know.小题1:A.thousandsB.millionsC.hundredsD.billion小题2:A.alreadyB.neverC.yetD.just小题3:A.goB.turnC.travelD.goes小题4:A.toB.backC.aroundD.into小题5:A.calledB.callC.callingD.calls小题6:A.sendB.sentC.have sentD.will send小题7:A.outB.beyondC.intoD.up小题8:A.discovered B.discoversC.has discoveredD.have discovered小题9:A.messageB.informationsC.informationD.news小题10:A.WithB.HaveC.UseD.Because 查看答案
题型:问答题 读“地球公转示意图”,回答下列问题.(1)用箭头在图中标出地球公转的方向.(2)当地球公转至A处时,日期是______,太阳直射点的纬度是______,这一天北半球昼夜长短状况是______,北极圈内有______现象.(3)当地球公转到B处时,武汉昼夜长短状况是______,此时正是北半球的______日. 查看答案
题型:单项选择题 下列关于台球比赛,说法错误的是。()A.台球运动起源于西欧,至今已有五、六百年历史,那时的台球只是法国与英国王宫贵族的“时尚游戏”。B.在整个比赛过程中,要保持安静,禁止大声喧哗,甚至禁止掌声C.在比赛中严禁使用照相机闪光灯,禁止在场地吸烟,并且应关闭移动电话。D.比赛结束前,不得随意走动。 查看答案