layer。“An unhappy home _ can affect a child's behaviour.”(不幸福的家庭_会影响孩子的行为。)“environment”(环境),家庭环境会影响孩子,这里填 B. environment。“My small _ gets very hot when the sun is shining”(当阳光照耀时,我的小_变得非常热。)“greenhouse”(温室),温室在阳光照耀下会变...
He who would eat the must first crack the shell.4. Regular exercise will help to strengthen your5. Sunscreen provides a layer against the harmful rays from the sun.6. It's easy to lose ___ when you walk on the ice.7. If the weather is fine, we'll have an open-air ___ in th...
）5.Hydrogen and sodium each have one electron in the outer layer. Each has a combining power of one. They each have one electron to lend to anther atom.氢和钠在外层各有一个电子。它们的化合价都是1.它们各有一个电子可借给其他原子。（句中第一、三个each作同位语，第二个each为代...
UV rays from the sun are so strong that 【小题4】 damage our cells’ DNA. There are two types that affect the skin. UVA rays damage protein in skin, quickening the pace of aging. UVB rays, meanwhile, cook the outer layer of the skin, causing sunburn. 【小...
Even waterpower comes from the sun. Water turned into vapor by the sun falls as rain. It couses down the mountains and is changed to electric power. Light sends out only the energy that comes from the sun's outer layer(层), and much of this energy that is directed towards the earth ...
A warming ocean loses oxygen for two reasons: First, the warmer a liquid becomes, the less gas it can hold. That is why carbonated drinks go flat faster when left in the sun. Second, as polar se a ice melts, it forms a layer of water above colder, more salty se a waters. This ...
2.layer层,D选项“a sheet of material that covers a surface(覆盖在表面的一层材料)”,故选D。3.solar panel太阳能电池板,E选项“a device that uses the energy from the Sun to produce electricity(利用太阳能发电的装置)”,故选E。4.holder支托物,B选项“a container used for holding something(...
each与every都可用作形容词，在句中作定语，但each更强调个人或个别，every更强调全体或全部。each指两个或两个以上的人或事物中的“每个”；every是指许多人或事物的“全体”，与all的意思相近。every和each用法上的区别 1. each可作代词和形容词，而every只能用作形容词，如可以说each of these ...
Every member has a share in the profits made by the company．每个会员可分享公司的盈利。（形容词）二、each与every都可用作形容词，在句中作定语，但each更强调个人或个别，every表示“每个”之意，含有“全体”、“全部”之意味。如：I know each number of your family.我认识你们家的每个...
At last. we take the mean value as the valid solution of theboundary layer equations.The first-and the second-order approximate solutions obtained in this paper coincdewith the results in ref[1],while the third-order solution obtained in this paper is better thanthat in ref [1]....