不属于科学探究常用的方法有 [ ] A.收集和分析资料 B.设计探究实验 C.临

题型:选择题

问题:

不属于科学探究常用的方法有 [ ]

A.收集和分析资料

B.设计探究实验

C.临摹细胞图

D.观察和调查

考点:科学研究方法
题型:选择题

阅读理解。

                                                               Beijing-old and new   

     Fifty years ago, if you flew over Beijing and looked down on the city, it looked like an army camp.

The whole city was laid out in regular squares. In the middle was the Forbidden City-like the general's

headquarters. North, south, east and west were miles and miles of hutongs, with their traditional courtyard

houses. Seen from the air, these looked like the tens of the army's ordinary soldiers.

     In many ways, the old city of Beijing looked very much like other Chinese capital cities from the past

two or three thousand years. The regular city plan with the Emperor's Palace in the center, the traditional

buildings with their wooden structures and tiled roofs, the large city walls-these were features that the city

shared with other capitals of ancient China such as Chang'an (present-day Xi'an) or Kaifeng. 

     Until the 1940s, the city looked very much the same as it had for centuries. However, in the 1950s the

enormous city walls were torn down. More recently, most of the old hutongs have disappeared. In their

place, a modern city of wide roads and tall skyscrapers has been rising upwards, and spreading

outwards-far beyond the area of the old capital.

Vocabulary

army camp 军营,            lay out 设计, 策划           regular 规则的, 整齐的       square 正方形; 方块

Forbidden City 紫禁城     general * *                    headquarters (单复数同)司令部, 大本营; 总部

courtyard 四合院            wooden 木制的, 木头的 structure 结构, 构造            tiled 用砖瓦覆盖的

feature 特点, 特征,特色  tear down 拆毁, 拆卸       spread 铺开, 展开               outwards 向外

beyond (指空间) 在…….的那一边, 远于

Write what, or who, the underlined words in the passage refer to:

1. it =                                                                         

2. these =                                                                          

3. the city =                                                                            

4. their =                                                                            

题型:选择题

下图1是细胞中3种化合物含量的扇形图,图2是有活性的细胞中元素含量的柱形图,下列说法不正确的是

[ ]

A.若图1表示正常细胞,则A为水

B.若图1表示细胞干重,则A为蛋白质

C.图2中含量最多的元素a是氧元素

D.图2中原子数量最多的元素也是a

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