1.综合题- (共1题)
（1）水螅的体壁由________和________组成，身体有口无肛门。
（2）节肢动物的主要特征：体表有坚韧的________；身体和附肢都分节。
（3）目前动物有150万种，这些动物可分成两类：一类是________另一是________。
（4）两栖动物的主要特征是：幼体生活在______中，用_____呼吸；成体水陆两栖，用肺呼吸，_____也可辅助呼吸。
2.连线题- (共1题)
1、腔肠动物 a.身体表面有刺细胞
2、鱼类 b.用鳃呼吸的脊椎动物
3、环节动物 c.身体分节，靠刚毛或疣足辅助运动
4、节肢动物 d.身体和附肢都分节，有外骨骼
5、软体动物 e.身体表面有外套膜
3.单选题- (共6题)
4.选择题- (共7题)
Besides calling 120, here is what you should do when no one is around to help.
| If you get lost, you may stay where you can be seen clearly and try your best to have a rest. In a wide open area, make a colorful cross out of rocks to show where you stay. |
| When you choke (噎住) at home, make a sudden hit against the back of the chair. If you can't breathe after six tries, call 120. Leave the telephone open until help arrives. |
| If you get hurt, use your hand or a scarf, or any dry cloth you can find, and push down on the wound（伤口） until the blood stops running. Don't put the cloth around your leg tightly, or you may lose your foot. |
| When a fire happens, you must move close to the floor. Cover your mouth and nose with a wet towel (毛巾), make you wet from head to foot if possible and find a safe place outside. |
-
【1】题量占比
综合题:(1道)
连线题:(1道)
单选题:(6道)
选择题:(7道)
-
【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：0
5星难题：0
6星难题：2
7星难题：0
8星难题：6
9星难题：0