Directions: For this part, you are allowed 30 minutes to write an essay on online libraries. You can start your essay with the sentence "Online libraries are becoming increasingly popular." You should write at least 120 words but no more than 180 words.

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As the mobile devices get developed gradually, more and more people regard online libraries as their first option. However, people hold different views on the e-libraries. Some believe it is quite convenient for us to read online while others oppose it, for they think it can never be as good as brick and mortar libraries.

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In terms of the advantages of online library, it is more accessible than the real libraries. Simply take out your mobile devices, and sign in the library, you can borrow the book you want to read. It saves you the trouble of transporting yourself to the library, and lifts you from the toil of carrying the heavy paper books. Besides, you can get notices from the e-libraries which remind you of the expiration date so you will never forget to return it.

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However, online libraries do have some demerits. For instance, you always need a wi-fi connection to activate it. If you are in some place where wi-fi is not available, online libraries will no longer work. But a paper book will never fail you. Besides, reading online means you are more easily to be distracted, while it is the physical libraries that provide you a tranquil environment for you to focus on your reading.

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In a nutshell, online libraries are designed to make reading more convenient. But sometimes readers cannot make the best of it. Therefore, it is we readers ourselves who should take the advantage of the online libraries and make it a helper for our life.