2015年考研英语一阅读全文如下：
Part A
Text 1
Questions 1 to 5 are based on the following text.
In the United States, the incidence of Alzheimer's disease (AD), a form of dementia, is rising. According to the Alzheimer's Association, 5.3 million Americans had AD in 2010, and the number is expected to grow to 13.8 million by 2050. In addition to the emotional and social impact on individuals and their families, the cost of AD is a major concern. The Association estimates that in 2010, the cost of AD to Medicare, Medicaid, and other public and private insurers was $172 billion, a figure that is projected to increase to $1.1 trillion by 2050.
There are two types of AD: early-onset and late-onset. Early-onset AD occurs in people younger than 65 years old, and is often inherited. Late-onset AD is more common and tends to develop after the age of 65. While there is no cure for AD, there are some treatments that can help slow the progression of the disease. However, these treatments are only effective in the early stages of the disease.
The exact cause of AD is not known, but it is believed to be a result of a combination of genetic and environmental factors. Some studies have shown that certain genes are associated with an increased risk of developing AD. In addition, there are lifestyle factors that can increase the risk of developing AD, such as smoking, high blood pressure, and obesity.
One of the most important factors in the prevention and treatment of AD is early detection. Early detection allows for the initiation of treatment that can slow the progression of the disease. In addition, early detection can help individuals and their families plan for the future and prepare for the challenges that may come with the disease.
While there is no cure for AD, there are some treatments that can help slow the progression of the disease. These treatments include medication, cognitive therapy, and physical therapy. Medication can help manage symptoms such as confusion and aggression. Cognitive therapy can help individuals maintain their cognitive abilities, while physical therapy can help improve mobility and reduce the risk of falls.
Early detection of AD is crucial for effective treatment. However, early detection is often difficult, as the symptoms of AD can be subtle and easily overlooked. To help improve early detection, researchers are working on new diagnostic tools and treatments. In addition, there is a need for increased public awareness and education about AD.
Questions 1 to 5:
1. What is the main purpose of the passage?
A. To describe the causes of Alzheimer's disease.
B. To discuss the cost of Alzheimer's disease.
C. To explain the symptoms of Alzheimer's disease.
D. To propose solutions to the problem of Alzheimer's disease.
2. According to the passage, which of the following is true about early-onset AD?
A. It is more common than late-onset AD.
B. It is caused by environmental factors.
C. It occurs in people younger than 65 years old.
D. It can be prevented with lifestyle changes.
3. What is the main factor in the prevention and treatment of AD?
A. Genetic factors
B. Environmental factors
C. Early detection
D. Lifestyle changes
4. What are some of the treatments for AD?
A. Medication, cognitive therapy, and physical therapy
B. Surgery
C. Exercise
D. Diet
5. What is the main challenge in early detection of AD?
A. The symptoms of AD are not always noticeable.
B. There are no diagnostic tools available.
C. The cost of early detection is too high.
D. There is a lack of public awareness.
Text 2
Questions 6 to 10 are based on the following text.
The Internet has revolutionized the way we communicate and access information. It has also had a significant impact on the way we do business. One of the most notable changes is the rise of e-commerce, which allows companies to sell products and services online. E-commerce has opened up new markets and increased competition, but it has also brought about new challenges.
One of the biggest challenges of e-commerce is the issue of trust. Consumers are often hesitant to make purchases online because they are concerned about the security of their personal and financial information. To address this issue, companies have implemented various security measures, such as encryption and secure payment gateways. However, trust is not something that can be easily established, and it takes time for consumers to become comfortable with online shopping.
Another challenge of e-commerce is the issue of logistics. Shipping and delivery can be complicated, especially when dealing with international orders. Companies must ensure that their products are delivered on time and in good condition, and they must also deal with issues such as customs and import duties.
Despite the challenges, e-commerce has become an important part of the business landscape. Many companies have successfully transitioned to online sales, and they have seen significant growth as a result. In addition, e-commerce has created new opportunities for businesses to reach new customers and expand their market share.
One of the benefits of e-commerce is that it allows companies to operate 24/7. This means that they can reach customers in different time zones and offer them a more convenient shopping experience. In addition, e-commerce allows companies to collect valuable data on their customers, which they can use to improve their marketing and sales strategies.
To be successful in e-commerce, companies must focus on building trust with their customers and ensuring that their logistics are efficient. They must also be willing to adapt to changing technology and consumer preferences. By doing so, they can take advantage of the opportunities that e-commerce offers and continue to grow their business.
Questions 6 to 10:
6. What is the main purpose of the passage?
A. To discuss the benefits of e-commerce.
B. To analyze the challenges of e-commerce.
C. To explain the impact of e-commerce on the business landscape.
D. To compare traditional retail with e-commerce.
7. According to the passage, what is one of the biggest challenges of e-commerce?
A. The cost of online advertising.
B. The security of personal and financial information.
C. The difficulty of finding suppliers.
D. The need for a large inventory.
8. What is one of the benefits of e-commerce?
A. It allows companies to operate 24/7.
B. It reduces the cost of shipping and delivery.
C. It increases competition in the market.
D. It eliminates the need for physical stores.
9. What is the main focus of the passage?
A. The advantages and disadvantages of e-commerce.
B. The impact of e-commerce on the retail industry.
C. The challenges and opportunities of e-commerce.
D. The evolution of e-commerce over time.
10. What is the author's overall impression of e-commerce?
A. It is a revolutionary technology that will change the way we do business.
B. It is a beneficial but challenging development that requires careful management.
C. It is a passing fad that will soon be replaced by other technologies.
D. It is a negative trend that is harmful to the economy.
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