1，复习
1,versatile,able to own many abilities.
2,allergy,allergic.
3,arid,dry.
4,bedrock,have real and abstract meaning.
①the hard area above loose sooil.
②some principles base on.
5,carnivore,animals eat meat.
6,convex...the opposite to concave..(话说前三天没找到这个concave)..something break out.
7,defecate,pass the contents of the bowel out the body.
8,flake,a piece of something.
9,geology,the study of rocks and the structure of earth.
10,hominid,like ape.
11,legible,clearly to be read or written.
12,lizard,fake,small dragon.
13,mosaic,...绝对背过马赛克。
14，paraphrase,explanation.
15,posthumous,happening after people die.
16,rekindle,light again .
17,sanitation,the system of taking dirty water out of the house.
18,tactic,planner way of do something.
19,aquatic,living in wate..creatures
20,asteroid,some big rocks circle the sun.
21,decadent, adecadent person is a low moral standard people
22,extol,praise someone very much
23,extrinsic,coming from outside.
24,gourmet,
n,a person who know a lot of food.
adj,(food) very high quality.
25,hive,the place where bees live.
26,hydrogen,the lightest element in the chemical..
27,lore, stories or legends of some group
28,magma,hot ,liquid rock.
29,malnutrition,physical weakness caused by no food.
30,maintaintop,th peak