Bacteria are carried by various 'media', which can include raw food, moist surfaces where bacteria have been left, our hands or skin and from coughing or sneezing (打喷嚏).

2018年12月四级真题（第三套）阅读 Section B

I was a little scared at first because he used a smooth edged tool to scrape the skin on my neck and shoulders.

2018年12月四级真题（第三套）阅读 Section A

Behind the differences in sex, skin tones and mother tongues, there are common attitudes, expectations and ambitions which risk creating a set of clones among the business leaders of the future.

出自-2011年6月阅读原文

While the team can't be sure their results are due solely to Obama, they also showed that those with the lowest bias were likely to subconsciously associate black skin colour with political words such as "government" or "president".

出自-2010年6月阅读原文

You know I've often wondered why people laugh at the picture of a big belly businessman slipping on a banana skin and falling on his bottom.

出自-2011年6月听力原文

As a zoologist focusing on the studies of apes and monkeys, I've been studying why humans evolved to become the naked ape and why skin comes in so many different shades around the world.

2019年6月六级真题（第一套）听力 Section C

Basically we turned our skin darker to serve as a natural sun protector in the place of the hair we lost.

2019年6月六级真题（第一套）听力 Section C

Flamingos have evolved very leathery skin on their legs so they can tolerate the salt water, says David Harper, a professor at the University of Leicester.

2017年12月六级真题（第三套）阅读 Section C

For most of human history, we all had dark skin.

2019年6月六级真题（第一套）听力 Section C

Last year, MATTEL, the company that makes Barbie dolls, added some Barbies to its line that have different skin tones and hair textures.

2017年12月六级真题（第一套）听力 Section B

Skin may seem like a superficial human attribute, but it's the first thing we notice about anyone we meet.

2019年6月六级真题（第一套）听力 Section C

The water is so corrosive that it can burn the skin and eyes of unadapted animals.

2017年12月六级真题（第三套）阅读 Section C

There are now Barbies of one of 7 skin tones, 22 eye colors and 24 hair styles to choose from.

2017年12月六级真题（第一套）听力 Section B

Today skin color is evolving the new mixtures of people coming together and having children with new mixtures of skin color genes.

2019年6月六级真题（第一套）听力 Section C

We can make a very good estimate from the fossil record that humans probably evolved naked skin around a million and a half years ago and meanwhile they mostly lost their coat of fur.

2019年6月六级真题（第一套）听力 Section C

What we did in our ancestry was to produce more permanent natural coloring in our skin cells.

2019年6月六级真题（第一套）听力 Section C

Animals are built of many different materials----skin, fat, and more----and light moves through each at a different speed.

2015年高考英语北京卷 阅读理解 阅读C 原文

It takes sunscreen about fifteen minutes to start working, and that's plenty of time for your skin to absorb a day's worth of Vitamin D.

2019年高考英语全国卷I 阅读理解 七选五 原文

Remove the skin and place them in plastic bags or containers and freeze.

2018年高考英语全国卷2 阅读理解 阅读B 原文

To make sure you get enough Vitamin D—but still protect your skin—put on sunscreen right as you head outside.

2019年高考英语全国卷I 阅读理解 七选五 原文

While the sun's rays can age and harm our skin, they also give is beneficial Vitamin D.

2019年高考英语全国卷I 阅读理解 七选五 原文

The French measures, however, rely too much on severe punishment to change a culture that still regards beauty as skin-deep – and bone-showing.

出自-2016年考研阅读原文

If you look hard enough, you'll find that many of the products we use every day—chewing gums, skin moisturizers, disinfecting wipes, air fresheners, water purifiers, health snacks, antiperspirants, colognes, teeth whiteners, fabric softeners, vitamins—are

2010年考研真题（英语二）阅读理解 Section Ⅱ

Skin moisturizers are advertised as part of morning beauty rituals, slipped in between hair brushing and putting on makeup.

2010年考研真题（英语二）阅读理解 Section Ⅱ

You live in your skin, think your own thoughts, have your own values and make your own choices.

2015年考研真题（英语二）阅读理解 Section Ⅱ