题型：填空题 应答如流：读课本第9页图1.15，回答下列问题（1）白天为______（昼、夜），即太阳光______的地方（2）黑夜为______（昼、夜）即太阳光______的地方（3）图中的虚线是______线，它是______的分界（4）昼夜交替的原因是______． 查看答案
题型：填空题 任务型阅读 (本题有5小题，每小题l分，共5分) 请阅读第1-5题的电视节目内容说明和A-E五个节目名称，把它们分别配对。1．When you need help with our homework, go to the library. You may find magazines, newspapers, and big dictionaries there. They can always help you.A. Money isn’t Everything2. For families with children, an important problem is to get the children away from TV and let them do their homework. B. American Films3. Even if you could buy the world, you couldn’t buy a happy family, good friends, or knowledge.C. Farms in the future4. The Lost World is an exciting American film. People, especially school students may like it.D. Study Tools5. People will grow plants and vegetables in the sea in about 50 years.E. Parents’ Trouble 查看答案
题型：填空题 庐山小天池有“久雨不溢，久旱不涸”的特点，其中（ ）A．“久雨不溢”时地表水补给地下水B．“久雨不溢”时地下水补给地表水C．“久旱不涸”时地表水补给地下水D．“久雨不溢，久旱不涸”说明了庐山小天池不参与水循环 查看答案
题型：填空题 如右图所示，一轻绳通过无摩擦的小定滑轮O与小球B连接，另一端与套在光滑竖直杆上的小物块A连接，杆两端固定且足够长，物块A由静止从图示位置释放后，先沿杆向上运动. 设某时刻物块A运动的速度大小为vA，小球B运动的速度大小为vB，轻绳与杆的夹角为θ，则A．vA＝vBcosθB．vB＝vAcosθC．小球B减小的势能等于物块A增加的动能D．当物块A上升到与滑轮等高时，它的机械能最大 查看答案
