首页
登录
职称英语
[originaltext] Clay is found almost everywhere in the world. (32) It is form
[originaltext] Clay is found almost everywhere in the world. (32) It is form
游客
2023-07-14
55
管理
问题
Clay is found almost everywhere in the world. (32) It is formed by the action of wind and water on rocks over thousands of years. The rocks change in both chemical and physical ways. Chemically, elements are added and taken away. Physically, the rocks break down into smaller and smaller pieces. After a long time, some of the rock changes to clay. (33) Clay is important because it is used around the world to make containers of all kinds. Potters add water to soften the clay. This makes it easier to form into shapes by hand or by machine. Then it is fired in an extremely hot stove. The result is a container with a hard surface that will last for many years. You can usually find good clay (34) in low areas of islands or land, especially if volcanoes helped form the land. (34) Clay often exists in fields covered with some water. The clay will be found about one meter below the ground. (34) River banks often also have clay about one meter or less under the surface. You can recognize clay (35) because it is very shiny when it is wet. You can also perform a test. Take some of the material and add enough water to it to make it seem like you are making bread. Then press it in your hand until it is about the size of an egg. It is probably clay if it holds together instead of falling apart when you stop pressing.
选项
A、The natural force makes it come into being.
B、It originates from some chemical elements in the nature.
C、It comes from the rocks with the action of wind and water.
D、A series of biological changes happen in the process.
答案
C
解析
题干询问粘土是如何形成的。文章中有关键句,It is formed by the action of wind and water on rocks over thousands of years. 说明粘土是由风和水作用于岩石形成。
转载请注明原文地址:https://tihaiku.com/zcyy/2837167.html
相关试题推荐
[originaltext](32)CountyfairsareatraditioninNewEnglandtowns.They
[originaltext](32)CountyfairsareatraditioninNewEnglandtowns.They
[originaltext](32)CountyfairsareatraditioninNewEnglandtowns.They
[originaltext]Recently,over30millionAmericansofbothsexesandallage
[originaltext](26)Itiswhatfaileddietershavelongsuspected:Fatpeople
[originaltext](26)Itiswhatfaileddietershavelongsuspected:Fatpeople
[originaltext]W:Hello,canIhelpyou?M:Yes,Ineedtobuysomeautoinsuran
[originaltext]W:Hello,canIhelpyou?M:Yes,Ineedtobuysomeautoinsuran
[originaltext]WestPointisafour-yearschoolinNewYorkStatethateduca
[originaltext]Iwas9yearsoldwhenIfoundoutmyfatherwasill.Itwas
随机试题
WriteonANSWERSHEETTWOanoteofabout50-60wordsbasedonthefollowing
ThecultureoftheUnitedStatesisaWesterncultureoriginallyinfluenced
中医(TraditionalChineseMedicine)是中华文化不可分割的一部分,为振兴华夏做出了巨大的贡献。如今,中医和西医(western
下列选项中属于银行对代收代付业务消费者的主要义务的有()。A.按照委托单位收付
讨论a取何值时,下述线性方程组有唯一解?有无穷多解?无解?
下列使用函询证方式进行清查的是()。A.库存现金 B.银行存款 C.
水污染综合整治措施中,下列哪项措施,不仅能够缓解水资源危机,而且能够改善面源污染
男性,72岁,慢性胃炎30年,近2周出现发作性胸痛,伴反酸、烧心、呃逆。 要确
患者,女性,56岁。因口腔黏膜反复水疱1年多就诊,水疱破溃形成大面积溃疡面。检查
凡用于工程的砂石料应按( )分仓存放。A.级配要求 B.不同价格 C.不同粒
最新回复
(
0
)