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江苏省苏州市2019-2020学年高二下学期期中考试英语试题

作者UID:9673734
日期: 2024-09-19
期中考试
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Food experts say washing could spread the germs on your turkey in the kitchen sink or nearby food. But it's been a challenge trying to convince cooks to stop rinsing(冲洗) off raw poultry. Germs that can make people sick are common in the guts of healthy poultry and are legally allowed to be on raw turkey and chicken. The assumption is that nobody eats their poultry raw, and that thorough cooking will kill the bacteria.

The do-not-wash raw poultry advice from the USDA is relatively new and perhaps hasn't caught on because it goes against the common belief that washing makes things clean, said Chapman. Benjamin Chapman, a study author and food safety expert at North Carolina State University, said the instinct to wash raw poultry goes back at least decades when people relied more on visual clues to spot problems with poultry. Meanwhile, washing hands and surfaces are also important.

But food preparation is a complicated act, and germs from poultry can be spread even if it's not washed, especially when birds are removed from packaging.

The USDA-funded study stresses that point. Researchers sprayed raw chicken with a harmless strain of E. coli (大肠杆菌) and watched volunteer cooks at test kitchens. Among those who washed their raw chicken, about a quarter ended up spreading the bacteria to their lettuce. But even some of those who did not rinse the chicken got germs on the lettuce. And there are_other opportunities for germs to survive on turkeys:melting and cooking.

To ensure a bird is thoroughly cooked, they say to use a thermometer to check that the deepest and thickest parts of it have reached 165 degrees. Even after the meal is cooked, you aren't out of the danger zone. To keep turkeys and other leftovers safe, experts say they should be refrigerated after two hours.

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Light is a complex phenomenon classically explained with a simple model based on rays and wavefronts. Many of the aspects of light have been explored, but few people notice them happening in their real lives. For example, most of us observe some type of optical interference almost daily, but usually don't realize the events in play behind the ever-changing display of colors produced when light waves interfere with each other. One of the best examples of interference is shown by the light reflected from a film of oil floating on water. Another example is the thin film of a soap bubble, which reflects a series of light with beautiful colors when shined by natural or man-made light sources.

Electromagnetic radiation(电磁辐射), the larger family of wave-like phenomena to which visible light belongs, is the primary vehicle transporting energy through the vast reaches of the universe. The means by which visible light is sent out or absorbed, and how it predictably reacts under different conditions as it travels through space and the atmosphere, form the basis of the existence of color in our universe. The human eye is sensitive to a form of electromagnetic radiation that lies in the wavelength range between 400 and 700 nanometers(纳米), commonly known as the visible light spectrum, which is the only source of color. When combined, all of the wavelengths present in visible light form colorless white light. Red, green, and blue colors are classically considered the primary colors because they are fundamental to human vision. Light is observed as white by humans when our eyes are affected by equal amounts of red, green, and blue light at the same time.

The concept of color temperature is of great importance in photography and digital imaging, regardless of whether the image capture device is a camera or a microscope. A lack of proper color temperature balance between the microscope light source and the image sensor is the most common reason for unexpected color shifts in photomicrography(显微照相术)and digital imaging. If the color temperature of the light source is too low for the film, photomicrographs will have an overall yellowish or reddish cast and will appear warm. On the other hand, when the color temperature of the light source is too high for the film, photomicrographs will have a blue cast and will appear cool. As problematic as these color shifts may seem, they're always easily corrected by the proper use of conversion and light balancing filters(滤光器)。

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Today's world is not an easy adjustment for young adults. Key skill set for success is persistence (毅力), a characteristic that researchers say is heavily influenced by fathers. Researchers from Brigham Young University discovered that fathers are in a unique position to help their adolescent children learn persistence.

BYU professors Laura Padilla-Walker and Randal Day arrived at these findings after following 325 American families over several years. And over time, the persistence gained through fathers led to higher achievement in school.

"There are relatively few studies that stress the unique role of fathers, "Padilla-Walker said. "This research also helps to prove that characteristics such as persistence-which can be taught-are key to a child's life success.”

Researchers determined that dads need to practice an "authoritative" parenting style. Authoritative parenting is not authoritarian: rigid, demanding or controlling. Rather, an authoritative parenting style includes some of the following characteristics: children feel warmth and love from their father;responsibility and the reasons behind rules are stressed children are given an appropriate level of autonomy(自主权).

In the study, about 52 percent of the dads exhibited above-average levels of authoritative parenting. A key finding is that over time, children raised by an authoritative father were significantly more likely to develop persistence, which leads to better outcomes in school.

This particular study examined 11 to 14-year-olds living in two-parent homes. Yet the researchers suggest that single parents still may play a role in teaching the benefits of persistence, which is an avenue of future research.

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I stepped off the bus and headed for thepoolwith myfriends, concentrating on what I needed to do towinthis swimmingcompetition.

I jumped in the water, amid(在……中)screams of" Oh man, it's freezing", and found it wasn't toobad. I started to warm up, and noticed the sky getting gray. "It's going to rain, "my friend Ashley said behind me. "Let's pray for no thunder or lightning, "I replied. "This meet can't be canceled. "That was when I noticed his uneasiness. "What's wrong?"I asked.

He looked over at the other team and back at me, saying, "Their 50m freestyle swimmer,Jack, is talking something bad about you. He said you'd be a good swimmer if you didn't swim like a girl. And he's not only saying something bad about you, but everyone of us. "Ashley gave me a look of encouragement and added, "Tom, you'd betterswimas fast as possible and beat him. Show him who's the boss!"

My event was third. By that time, all my friends had shown up and I was preparing for my 50m freestyle sprint(冲刺)。I walked over to the blocks(起跑器)and began to prepare myself.

"You think you actually have a chance?" came an aggressive voice from my side. I turned and recognized the guy who Ashley had pointed at. It was Jack, who added, "Don't even try. "Luckily, I was not alone. My friends were close by.

"My friend is going to beat you, "Ashley warned. Jack replied, "That's a good one. We'll settle this in the water. "

"Swimmers up!" theofficialcalled. I stepped onto the starting block and prepared for the race.

That was when all my friends started to cheer me on. I focused all my attention and followed the official's order, "Take your mark." I bent down into my starting position, thecheeringaround me growing louder.

注意:

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2)至少使用5个短文中标有下划线的关键词语;

3)续写部分分为两段,每段的开头语已为你写好;

4)续写完成后,请用下划线标出你所使用的关键词语。

Paragraph 1:

When the starting gun fired, I jumped into the water:

Paragraph 2:

All I heard was cheering.

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