第一部分 阅读理解（共两节，满分50分）
第一节 （共15小题；每小题2.5分，满分37.5分）
阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。
A
Sleep is a necessity for all animals, and humans spend around one third of their lives sleeping. Despite this, the purposes of sleep remain fairly elusive to scientists. While we know that sleep is important for physical and mental restoration, whether or not there are additional functions still remains unknown.
One of the most widely accepted theories is that sleep is essential for memory consolidation, with a large body of research supporting this claim. In order for memories to be retained, they must first be transferred from short-term storage to long-term memory. This transfer process is known as memory consolidation.
A number of studies have found that sleep plays a critical role in this process, with sleep deprived individuals often struggling to remember information they have newly acquired. Moreover, research has shown that memories are actively processed and reinforced during sleep, providing greater resilience against forgetting. In addition, studies have found that specific stages of sleep relate to particular memory processes, with Sleep spindles (brief oscillations of brain activity) associated with the assimilation (吸收) of new information and slow wave sleep associated with the consolidation of that information.
While the case for sleep and memory consolidation is strong, scientists say that it is not the entire story. For example, studies have also found that sleep improves cognitive (认知) flexibility, creativity and problem-solving. Moreover, it has been suggested that sleep may also play important roles in regulating metabolism, immune function and emotional stability.
Despite our limited understanding of why we sleep, one thing is clear: a good night’s sleep is important for both our physical and mental wellbeing. Lack of sleep has been linked with a range of health problems, including obesity, heart disease, diabetes, and mental health issues such as anxiety and depression.
1. How many hours do humans spend sleeping in their lives, approximately?
A. One quarter.
B. One third.
C. Half.
D. Three quarters.
2. What is the main idea of the passage?
A. Sleep is crucial for memories consolidation.
B. We know a great deal about the purposes of sleep.
C. A good night's sleep is beneficial to both physical and mental health.
D. Lack of sleep may lead to various illnesses.
3. According to the passage, sleep may be important for all the following reasons except___________.
A. regulating metabolism
B. memory consolidation
C. coping with depression
D. boosting creativity
B
I love to travel, but I hate to pack. I always end up packing too much, but then missing something important. Over the years, I have learned a few tricks to make packing easier and more efficient.
First, make a checklist of all the items you need to bring. Write down everything, from clothes and toiletries to electronics and books. This will help you avoid forgetting anything i
mportant, and also prevent you from overpacking.
Second, try to pack clothes that can mix and match easily. This will allow you to create multiple outfits with fewer items. For example, bring a few basic tops and pants that can be dressed up or down. Also, pack lightweight layers that can be worn in different combinations to adjust to changing weather conditions.
Third, don't forget to pack items that are specific to your travel destination. For example, if you are going to a beach, bring a swimsuit, sunscreen, and a hat. If you are going to a city, bring comfortable shoes for walking and a map or guidebook.
Fourth, use packing cubes or compression bags to organize your luggage. This will help to maximize space and prevent items from getting wrinkled or damaged. You can use different colored cubes for different types of items, such as clothes, toiletries, and electronics.
With these tips, packing for your next trip should be a breeze! Happy travels!
4. Why does the author hate packing?
A) Because he always packs too much.
B) Because he always forgets to pack something important.
C) Both A) and B)
D) None of the above
5. What should you do before you start packing?
A) Write down a checklist of everything you need to bring.
B) Decide which clothes you want to wear.
C) Choose the perfect luggage.
D) None of the above.
6. How can you pack clothes more efficiently?
A) By packing outfits that can be mixed and matched easily.
B) By packing only the clothes you need.
5年高考3年模拟C) By packing heavy layers that can be adapted to any weather.
D) None of the above.
7. How can you organize your luggage?
A) By using packing cubes or compression bags.
B) By packing all your clothes together.
C) By throwing everything in the suitcase.
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