在备考考研英语的过程中，选择题库是不可或缺的复习工具。以下是一份精心整理的考研英语选择题库及答案，涵盖词汇、语法、阅读理解等多个方面，助你全面提升英语水平。
1. 单项选择题
（1）The sun ___________ in the east every morning.
A. rises
B. raises
C. elevates
D. ascends
答案：A
（2）She ___________ her job for a better one.
A. quit
B. quitted
C. quitted
D. quitting
答案：A
2. 完形填空
I was walking through the park when I ___________ a man lying on the ground, bleeding heavily. I ___________ my phone and called the emergency number. The paramedics arrived quickly and took the man to the hospital.
A. found; found
B. found; found
C. found; found
D. found; found
答案：A
3. 阅读理解
The following passage is followed by some questions or unfinished statements. For each question or statement, four words or phrases are given below each. You are to choose the one that best fits into the context.
The Internet has become an integral part of our lives, and it has revolutionized the way we communicate, access information, and conduct business. However, with the convenience of the Internet comes a host of challenges, including privacy concerns, cybersecurity threats, and information overload.
One of the most significant challenges posed by the Internet is privacy. With the increasing amount of personal information being shared online, individuals are becoming increasingly vulnerable to identity theft and other forms of cybercrime. To address this issue, it is crucial for individuals to be aware of the risks and take steps to protect their personal information.
Another challenge is cybersecurity. As more and more businesses and individuals rely on the Internet for their daily operations, they are also exposed to cyber attacks. These attacks can lead to significant financial losses, as well as damage to reputation and trust. To mitigate these risks, it is essential for organizations to invest in robust cybersecurity measures and for individuals to be vigilant about their online activities.
Lastly, information overload is another challenge that the Internet presents. With so much information available, it can be difficult to sift through and find the relevant information. This can lead to decision-making challenges and reduced productivity. To overcome this challenge, individuals need to develop effective information management skills and focus on the most important information.
Which of the following is NOT mentioned as a challenge posed by the Internet in the passage?
A. Privacy concerns
B. Cybersecurity threats
C. Information overload
D. Lack of access to information
答案：D
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