问题
操作题
读下列语句,并画出图形.
(1)任意画A、O两点,作射线OA.
(2)点A在直线l上,点B在直线l外.
(3)画线段AB=4cm,并找出它的中点C.
(4)直线l与直线AB交于O点.
答案
解:
(1)
射线OA就是所求作的射线.
(2)
(3)
(4)
读下列语句,并画出图形.
(1)任意画A、O两点,作射线OA.
(2)点A在直线l上,点B在直线l外.
(3)画线段AB=4cm,并找出它的中点C.
(4)直线l与直线AB交于O点.
解:
(1)
射线OA就是所求作的射线.
(2)
(3)
(4)
用所给词的适当形式填空,每词限用一次。 | |
2. —How old were you when you ________ learning English? —Ten years old. 3. The 2008 Olympic Games ________ in August in China. By then lots of athletes and tourists are coming for it. 4. —Where is Dave? —He________ clean up the city parks with other volunteers. 5. —Are you going to the film "King of Kongfu" with us? —No, thanks. I ________ it. 6. Last night he found it difficult ________ because of the loud noise outside. 7. He works par-time by ________ advertisements in the supermarket. |