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题型:阅读理解 题类:常考题 难易度:普通

辽宁省沈阳市交联体2018届高三上学期英语期中考试试卷

阅读理解

    Can exercise during childhood protect you against memory loss many decades later? Exercise early in life seems to have lifelong benefits for the brain, in rats at least.

    “This is an animal study, but it shows that physical activity at a young age is very important—not just for physical development, but for the whole lifelong track of cognitive (认知的) development during ageing,” says Martin Wojtowicz of the University of Toronto, Canada. “In humans, it may delay the appearance of Alzheimer's symptoms (阿兹海默氏症), possibly to the point of preventing them.”

    Wojtowicz's team divided 80 young male rats into two equal groups, and placed running wheels in the cages of one group for a period of six weeks. Around four months later-when the rats had reached middle age-the team taught all the rats to connect an electric shock with being in a specific box. When placed in the box, they froze with fear.

    Two weeks later, the team tested the rats in three situations: exactly the same box in the same room, the same box with the room arranged differently, and a completely different box in a different room.

    The rats without access to a running wheel when they were young now froze the same percentage of times in each of these situations, suggesting they couldn't remember which one was dangerous. But those that had been able to run in their youth froze 40 to 50 percent less in both changed box settings.

    “The results suggest the amount of physical activity when we're young, at least for rats, has influence on brain and cognitive health-in the form of better memories-when we're older,” says Arthur Kramer of Northeastern University in Boston, who has found that, in humans, exercise promotes the growth of new brain cells.

(1)、The study shows that       .
A、physical activity is important for physical health B、using the running wheels is of benefit to the rats' growth C、physical activity can prevent human's Alzheimer's symptoms D、the more exercise a rat has when young, the better memory it will possess when older
(2)、How are Paragraph 3 and 4 mainly developed?
A、By analyzing causes. B、By giving an example. C、By describing the process. D、By showing differences.
(3)、What does the underlined word “it” in Paragraph 2 refer to?
A、Exercise. B、Development. C、Benefit. D、Study.
(4)、What is the author's attitude towards the animal study?
A、Negative. B、Objective. C、Critical. D、Doubtful.
举一反三
根据短文理解,选择正确答案。

How to save money to visit Shanghai Disneyland?

    The “happiest place on earth” is a top destination on many families' bucket lists. But taking a vacation to Disney World can be difficult to do on a budget. There are some considerations that you can make to reduce the cost of your Disney World vacation.

1)Buy Souvenirs in Advance

    Disney has influenced practically every industry, which makes it easy to find Disney items anywhere, from Walmart, Target, and your local grocery store to department stores and Amazon. You can save a lot of money by purchasing items before your trip at these less-expensive places than at Disneyland.

2)Make an Autograph Book

    An autograph (亲笔签名)book is seen as a must-have by many Disneyland enthusiasts and is a memory you can take home with you. These books can cost anywhere from $7.95 to $19.95 at the Disney Store and up to $30 for the latest-and-greatest autograph book at Disneyland, such as the park's 60th anniversary edition. Other choices can get the job done for under $5. For example, you can buy a small photo album; cute pads or notebooks.

3)Eat Breakfast Before You Arrive

    Breakfast is almost as pricey as lunch or dinner if you eat inside the Disneyland parks. If you have a hotel with a free breakfast, take advantage of it. If you want to eat out, eat at a local restaurant that is inexpensive or has a kids' menu, such as McDonald's which is close to the park.

4)Take Advantage of Discounts Offered to Special Groups

    Disney offers a wide variety of discounts, including for military service members, college students, teachers, and youth groups. If you think you might qualify for a special discount or group rate, call the Disneyland Resort to book tickets.

阅读理解

    While beach vacations may be a great way to take your mind off work,lakes surrounded by mountains make for an even grander experience.If you are looking for some peace on your vacation,we have some recommendations for you in the Caucasus(高加索).

Lake Sevan

    Lake Sevan is situated in the central part of Armenia,in the Gegharkunik province.It is the largest lake in Armenia,located 6,200ft above sea level.Along the lake shore,there are various accommodations such as resorts and hotels with plenty of activities to partake in such as windsurfing,swimming and sunbathing.While there,do not forget to visit one of the famous cultural monuments,the Sevanavank Monastery,and it offers a great view of the lake as well.

Lake Paravani

    Lake Paravani,located at 6,801ft above sea level,is in the south of Georgia,near the Javakheti plateau.At this level,altitude sickness can occur and it is a good idea to be prepared to adapt to it properly,or bring medication for altitude sickness.Being a volcanic lake makes for a more interesting experience.The lake is best known for fishing.Do not come home during the winter months when the lake freezes.

Lake Cildir

    Lake Cildir is located in the Ardahan province,East Turkey,near the borders of Georgia and Armenia.It is the second largest freshwater lake of Eastern Turkey,and many tourists are not aware of this beautiful attraction.Lake Cildir is surrounded by mountains of the Caucasus.The lake freezes during late November.If the winter is not extremely cold,you can try some lake activities like ice skating and ice fishing.

Lake Van

    Lake Van is the must visit of all lakes in this list.The largest lake in Turkey,Lake Van is located on the eastern shore of Turkey and is also the most accessible lake here.It's situated at 5,380ft above sea level,and unique to lakes around the world,the water is high in salt content.

阅读理解

    Imagine waking up one day and finding that your beautiful local beach is no more—gone, its fine white sand swept away by an abnormal storm. You go about your daily business for 12 long years and then suddenly the beach is back, all its glory restored by another storm. This is what happened on the island of Achill, off the coast of Ireland, where people are celebrating the return of the beautiful Ashleam Bay beach that was taken from them in 2005.

    That in itself is unusual enough, but the story gets even better! You see, another beach in Achill did a disappearing act once, but took much longer to return. The beach at Doonagh, located only six miles away from Ashleam Bay, was restored earlier in 2016 after waves created by spring storms had swept away all the sand in 1984, leaving just rock pools behind.

    There is local legend that stretches back hundreds of years that says this beach at Ashlcam Bay returns for a short every seven years then disappears again. But this time around it took a bit longer than that. It was last seen in 2005 and it stayed for a few months at that time before it was washed away again.

    As you can imagine, everyone on the island of Achill is thrilled to have their sandy beach back, and even though no one knows how long it's going to be around for, they are making the most of the time they've got before it disappears again.

    Some may be quick to believe climate changes cause the phenomenon, but that's not the reason these two beaches in Achill keep disappearing, Dr Kevin Lynch, a geographer at NUT Galway, says that these occurrences are the result of hydrodynamics (流体力学) and sediment(沉积物) supply, rather than climate changes.

    Regardless of what's causing them, disappearing and reappearing beaches are just part of what makes nature so fascinating.

阅读短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

    Scientists around the world are striving for effective detection of cancer in the early stages, which is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body, and a Chinese scientist may have found a quick way of knowing whether malignant tumors (恶性肿瘤) exist in a patient's body, with just one drop of blood.

    Malignant tumors in early phases can be cured. However, it's extremely difficult to be aware of cancer in its early stages, as patients don't show obvious symptoms and thus it can only be found in its later stages, which is already too late, so to detect cancer early remains a global challenge for scientists.

    Back in 1989, scientists have found a kind of heat shock proteins (HSP), named Hsp90α, which existed in human bodies and can be used as a cancer biomarker detection kit. Scientists around the globe have been working on it since then, and more than 10, 000 journals have been published on accredited magazines, yet no one has actually turned their research results into medical products.

    However, Luo Yongzhang and his team in Tsinghua University's School of Life Sciences in Beijing seemed to have cracked the code, after working on the problem since 2009.The team has produced an artificial Hsp90α protein for clinical use that gains structural stability by regrouping proteins. The test kit can diagnose multiple kinds of cancer by analyzing a drop of human blood. This means they are able to "create" the protein, in any quantity, and at any time they wish to.

    The kit has since been used in clinical trials involving 2, 347 patients at eight hospitals in China. It was the first clinical trial in the world to test if the protein could be a useful tumor biomarker for lung cancer, and it succeeded. Now, the kit has been approved to enter the Chinese and European markets, 24 years after Hsp90α was discovered.

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