考研第二弹英语答案详解如下：
1. 【题目】The author believes that technology is a double-edged sword.
【答案】The author believes that technology is a double-edged sword, meaning it has both positive and negative impacts.
2. 【题目】The passage suggests that social media has become an integral part of our lives.
【答案】The passage indicates that social media has become an integral part of our lives, playing a crucial role in our daily activities.
3. 【题目】Which of the following is NOT mentioned as a disadvantage of online shopping?
【答案】The passage does not mention longer delivery times as a disadvantage of online shopping.
4. 【题目】The author argues that the key to a successful relationship is effective communication.
【答案】The author contends that effective communication is the key to a successful relationship.
5. 【题目】According to the passage, what is the primary cause of climate change?
【答案】The passage states that the primary cause of climate change is human activities, particularly the burning of fossil fuels.
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