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In the past, when people bought new phones or computers, they usually got more memory (内存) and better speed for their money. Now this is changing. The world’s growing need for AI is changing everything.

Building AI data centers (数据中心) needs a lot of memory chips (芯片). Selling chips to these centers brings chipmakers much more money than selling them to phone makers. So chipmakers would like to sell their chips to AI data centers. That leaves fewer chips for phones and computers.

Because there are fewer chips, chip prices are soaring very fast. To stop prices from going up too high, phone makers put less memory in their new phones. Even so, new phones cost more and are not much better than before.

Because of this, people are changing their habits. Many users keep their old phones longer, or they buy cheaper ones instead of getting the newest phones. They do not want to pay more for such a small gain. Experts say this will go on for at least a few years.

1.1.What did buyers usually get in the past?

A More memory and faster speed.

B Cheaper phones and computers.

C Fewer chips and lower prices.

D Better looks and lighter weight.

解析：选A。A 细节理解题。原文第一段明确提到“In the past, when people bought new phones or computers, they usually got more memory and better speed for their money”，即过去人们买新手机或电脑时，通常能花同样的钱得到更多内存和更快速度，因此A项“更多内存和更快速度”正确。B项“更便宜的手机和电脑”文中没有说；C项“更少芯片和更低价格”与过去情况不符；D项“更好看、更轻”文中未提及。故选A。

2.2.Why do chipmakers choose AI data centers?

A Chips are easier to make.

B Phones need fewer chips.

C They can make more money.

D Data centers pay them less.

解析：选C。C 细节理解题。原文第二段明确提到“Selling chips to these centers brings chipmakers much more money than selling them to phone makers”，即把芯片卖给AI数据中心比卖给手机制造商能赚更多钱，因此芯片制造商更愿意卖给AI数据中心，C项“他们能赚更多钱”正确。A项“芯片更容易制造”文中未说；B项“手机需要更少芯片”不是芯片制造商选择数据中心的原因；D项“数据中心付钱更少”与原文相反。故选C。

3.3.What does the underlined word “soaring” mean in Paragraph 3?

A Going down.

B Staying the same.

C Changing a bit.

D Going high.

解析：选D。D 词义猜测题。原文第三段“To stop prices from going up too high”说明价格在“上升、变高”，因此soaring意为“上涨、变高”，D项“Going high”正确。A项“Going down”是相反意思；B项“Staying the same”表示不变；C项“Changing a bit”表示稍微变化，都不符合上涨的语境。故选D。

4.4.Why don’t many people buy the newest phones?

A They change very little.

B They are less useful.

C They are worth buying.

D They have fewer buyers.

解析：选A。A 推理判断题。根据第三段“they are not much better than before”和第四段“They do not want to pay more for such a small gain”可以推断，最新手机相比以前改进很小，所以很多人不愿购买，A项“它们变化很小”正确。B项“它们用途更少”文中未说；C项“它们值得买”与人们不愿多付钱的态度相反；D项“它们买家更少”是结果，不是原因。故选A。

5.5.What is the passage mainly about?

A Why chips are difficult to make.

B How AI changes phone buyers.

C How to build an AI data centre.

D Why people like cheap phones.

解析：选B。B 主旨大意题。文章主要讲AI发展需要大量芯片，芯片制造商更愿意把芯片卖给AI数据中心，导致手机和电脑芯片减少、价格上涨，手机改进变小，进而改变人们的购机习惯，因此B项“AI如何改变手机购买者”最能概括全文。A项“芯片为什么难制造”文中未讲；C项“如何建AI数据中心”不是文章重点；D项“人们为什么喜欢便宜手机”只涉及文章一部分内容。故选B。