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【简答题】

If we find a bird nest (巢), we will have a good place of watching and knowing about birds. Birds sit on eggs and take care of their babies from April to June. Because the baby birds are too young to leave the nest, parents often go to look for food and come back in several minutes. So it is good to watch birds. When we watch birds, we'd better hide ourselves in a close place to the nest, and it's better to use binoculars (双筒望远镜). But how do we make a bird nest? A good bird nest must be very fine, strong, thick and comfortable. If you want to make one, please follow these: a) Each nest must have six boards (木板) for its cover and floor, for its left and right sides, and for its front and back sides. Don't make the boards too slippery (滑的). b) Dig a small hole in the front of the nest as a 'door'. The 'door' is big enough so birds can fly in or out easily. c) Make sure the rainwater can't go into the nest. d) One piece of the board should be easy to open. e) Don't forget to colour the nest. 小题1:We need ______ near a bird nest if we want to watch and know about birds. A.a good place B.some trees C.to sit on eggs D.to make a bird net 小题2:When we're watching birds, we have to ______. A.look after the birds more often B.use the binoculars to catch the birds C.hide ourselves to make the birds do everything as usual D.catch the birds at last 小题3:We should leave a hole in the front of the nest so that ______ easily. A.we can clean the nest B.birds can fly in or out C.we can hang it D.we can make it 小题4:According to the text, we can make a bird nest like Picture ______ with the boards.

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题目标签:望远镜
参考答案:
参考解析:
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刷刷题刷刷变学霸
举一反三

【多选题】哈勃望远镜的特点有:

A.
每一轨道都向西移动一点
B.
轨道倾角为30°
C.
轨道高度约36000km
D.
每天围绕地球旋转15圈

【单选题】哈勃望远镜是以下什么望远镜?()

A.
空间望远镜
B.
射电望远镜
C.
光学望远镜
D.
以上都不是

【单选题】发明望远镜的人是

A.
斯台文
B.
布鲁诺
C.
哥白尼
D.
伽利略

【单选题】下列不是空间望远镜的是( )

A.
XMM-牛顿望远镜
B.
甚大望远镜
C.
阿尔法磁谱仪
D.
硬X射线调制望远镜

【单选题】望远镜的视准轴是()。(

A.
目镜光心与物镜光心的连线
(
B.
物镜光心与十字丝交点的连线
(
C.
目镜光心与十字丝交点的连线
(
D.
物镜光心与调焦透镜光心的连线