单元测试
数是负数 C. 相反数等于它本身的数只有 0 D. a 的相反数是正数 500 米处,先下降 200 米,又上升 130 米,这时潜水艇停在海面下多少米处 ( ) A. 430 B. 530 C. 570 D. 470 ,那么这两个有理数 ( ) A. 都是正数 B. 都是负数 C. 一正数,一负数 a,b在数轴上的对应点的位置如图所示: 则 ( ) A. a+b> 0 B. a+b< 0 C
) 120- 40= 40 50= 25 4= 450247。 9= 360- 90= 11 60= 630247。 3= 560247。 40= 72- 24= 9 50= 630247。 70= 120 5= 24 5= 70 8= 250247。 5= 14 40= 880247。 8= 40 8= 57- 28= 810247。 90= 120+ 20= 28+ 68= 100 0=
ld, and he likes watching TV very much. But his parents ___1___ let him. They would say, “You ___2___study now and you should go to bed early, you can watch TV ___3___in the summer holiday.” 2 It was
it in their tea. They put sugar in their tea, as well. They are the world’ s biggest tea drinkers. They like Chinese tea, but they drink mostly strong black tea from India and Sri Lanka(斯里兰卡) . They
码是多少。 What’s ______ ______ ______? 5. 她的茶杯是紫色的。 Her ______ is ______? 六、句型转换。 1. His name is Li Yugang. (改为同义句 ) ______ ______ Li Yugagn. 2. The desk is white. (就划线部分提问 ) _____ ______ is the desk? 3.
r was just the one sentence, “It’s so cool.”Maybe he thought it was the best way to show what he saw and felt. But the story also shows a scarcity(缺乏) of “cool”,some people have no words to show the
48. 1. A. first B. family C. last D. full 2. A. first B. good C. well D. last 3. A. you B. that C. his D. her 4. A. puter B. name C. ID card D. telephone 5. A. am B. is C. are D. be 6. A. father B.
pen, it’s black. And this is an eraser, it’s blue and white. They’re in the pencil box. This is a ruler, it’s red, it’s on the pencil box. That is a ruler, too. It’s yellow. It’s in the drawer.
六、把合适的词语用线连起来。 ( 8 分) 高兴的 鲜花 用心地 练习 美丽的 种子 大口地 培育 煮熟的 表情 小声地 吃着 规定的 日子 刻苦地 说话 七、汉字加减法。 ( 9 分) 加一加: 例:下(虾)(虾米) 中 ( )( ) 立 ( )( ) 青 ( )( ) 减一减: 例:进(井)(水井) 伙 ( )( ) 汽 ( )( ) 把 ( )( ) 换一换:例:时( 过)(过去) 活 (
) 两条半径就是一条直径。 ( ) 半径为 2 厘米的圆,其面积和周长相等。 ( ) 半圆的周长就是用圆的周长除以 2。 ( ) 把一个圆平均分成 N 个小扇形,当 N的数值越来越大,每个小扇形就越 来越接近三角形,其高越来越接近半径。 ( ) 直径总比半径长。 ( ) 用三根一样长的铁丝分别围成一个长方形、正方形和圆,圆的面积最大。 ( ) 三. 选择。 ( 10 分) 两个圆的面积不相等