When you order food at home, you often get a call. The rider may ask which gate is yours, or say that the lift is broken. Today that call usually comes from a real mobile number. Soon it may come from one that starts with 700. On November 10, ten companies were allowed to test a new service for hiding phone numbers. Each of them can now use a special 700 section, which has fifteen digits, for this work.
The idea behind the service is simple. When you tick the box for number protection, the platform gives you a temporary number instead of your real one. You and the rider talk through it, and neither side can see the other person full phone number. The temporary number also dies after the order ends, so it does not leave a long open door. Calls from a 700 number can carry a short voice message before they connect. That message tells you the platform name and the reason for the call, so you know what you are picking up.
The plan answers a real problem. For years, many companies have used ordinary mobile numbers as middle numbers for deliveries. That was easy to misuse. Criminals could reach people who never agreed to be contacted, and some calls were hard to tell from scams. A set of numbers that belongs only to this service is easier to watch, and users can recognise the pattern at a glance.
Yet a new number plan is not a full shield. The service is still a test, and only some cities and orders will support it at the start. You have to choose it yourself, so many people will never notice it. Data can still leak from a weak app or a careless shop, long before the call is made. A caller can also find you on a social app that you uploaded your number to years ago. Hiding a number lowers the odds of trouble. It does not end the need to guard your data.
Words to know:
- temporary (临时的)
- platform (平台)
- misuse (滥用)
- scam (诈骗)
- recognise (认出，辨别)
- shield (防护，屏障)
- leak (泄露)
- guard (守护，提防)
长难句拆解 · 宾语从句 + 让步状语
主干：That message tells you the platform name and the reason for the call（主谓双宾：tells you …）。 并列句由 so 连接，后半句 you know 后是宾语从句 what you are picking up，what 在从句里作 picking up 的宾语。 语法点：tell sb. sth. 后接双宾语；what 引导名词性从句时不能换成 that。 直译：那条信息告诉你平台的名字和来电的原因，于是你知道自己正在接起的是什么。
长难句拆解 · 比较结构 + 状语从句
主干：Data can still leak（主谓），from a weak app or a careless shop 是来源状语。 long before the call is made 是时间状语从句，long 修饰 before，强调时间差很大；the call is made 是被动语态。 语法点：before 从句用一般现在时表将来，且这里用被动，因为「电话被拨出」不强调施动者。 直译：数据仍然可能在电话拨出之前很久，就已经从一个薄弱的应用或一家大意的店铺泄露出去。
同义替换 · 雅思阅读利器
雅思阅读最爱把原文换个说法再出题，下面每组左边是原文表达，右边是常见替换，先遮住右边自测。
- the lift is broken → the elevator is out of order / the lift has stopped working（换词，英式美式差别）（undefined）
- were allowed to test → were given permission to try / got the go-ahead to pilot（被动换成主动）（undefined）
- You have to choose it yourself → you need to opt in on your own / it is up to you to turn it on（主动选择的说法）（undefined）
- hard to tell from scams → difficult to distinguish from frauds / easy to mistake for cheating calls（tell from=区分）（undefined）
- lowers the odds of trouble → reduces the risk of problems / cuts the chance of harm（odds 换成 risk）（undefined）
- dies after the order ends → expires once the order is over / stops working at the end of the order（die 换成 expire）（undefined）
- so many people will never notice it → which means plenty of users will miss it / therefore lots of users will overlook it（结果句改写）（undefined）
阅读自测 · 3 题
- True / False / Not Given: The temporary number stops working some time after the order is finished.
- Short answer: What does a short voice message before the call tell the user?
- Choose the best summary: (a) The 700 service will end all phone scams. (b) The 700 service hides real numbers but cannot replace careful data habits. (c) Riders will no longer call users.
参考答案与解析
- True。原文说临时号码在订单结束后就失效（dies after the order ends），与题干一致。注意干扰项常把「一段时间后失效」偷换成「永久有效」，或用 always 之类绝对词把范围放大。
- It tells the user the name of the platform and the reason for the call. 原文 the platform name and the reason for the call 可直接定位；常见干扰是只答 platform，漏掉另一半信息。
- (b)。文章既讲了隐私号的好处，也在最后一段指出它只是试点、需用户自己开启、数据仍可能从别处泄露，所以「挡住一切诈骗」是把结论偷换过头，属于典型的绝对化干扰项。
中文译文
在家点外卖时，你常常会接到电话。骑手可能问你走哪个门，或者说电梯坏了。今天这类电话大多来自一个真实的手机号码，而不久之后，它可能来自一个以 700 开头的号码。11 月 10 日，工业和信息化部批复同意 10 家企业试点一项隐藏电话号码的新业务，这些企业从此可以使用专供这项业务的 15 位 700 号段。
这项业务的思路并不复杂。下单时勾选号码保护，平台就会给你一个临时号码来替代真实号码。你和骑手通过它通话，双方都看不到对方的完整手机号。订单结束一段时间后，临时号码自动失效，不会留下一条长期的通道。700 号码来电在接通前还能播放一段简短语音，说明平台名称和来电缘由，让你接得明白。
这个方案回应的是一个真实存在的问题。多年来，不少平台把普通手机号当作配送环节的中间号使用，这种方式很容易被钻空子。诈骗者能联系到从未同意被联系的人，有些来电也很难与骗局区分。手机号要经过许多环节流转，每个环节都可能成为泄露点。而专门划给这项业务的号段更容易监管，用户也能一眼认出规律。
不过，一套新的号码方案并不是万能的护盾。这项业务仍在试点，初期只有部分城市和部分订单支持。用户需要自己选择开启，因此很多人根本不会注意到它。而数据也可能在电话拨出之前很久，就从一个薄弱的应用或一家大意的店铺泄露出去。来电者还可能在你多年前上传过号码的社交应用上找到你。隐藏号码能降低出问题的概率，却替代不了看管好自己的数据。