Consider books for a moment. Buying your book at Amazon saves you maybe 30% to 40% on each book. Add to that the convenience of shopping from home and getting the package delivered to your home address. So far so good. Unfortunately, that does mean you spend too much time browsing Amazon. com while you could do something fun instead. Like maybe reading an actual book?

　　Then the package arrives and you aren't home and end up having to pick it up at the local post­office. All in all I wonder how much time I end up investing in the whole process. Time sounds free, but to most of us, it is more valuable than money.

　　The Internet Economy promised to get rid of the middle—men and we loved it. Somehow, I'm starting to get the feeling that we ourselves ended up doing the work of that middle—men we were so eager to get rid of.

　　In any project you can always pick two of these: fast, cheap or good. We seem to have focused a lot on 'cheap' and 'good' but the extra time we need to invest to also keep it 'fast' comes out of our own pockets.

　　You can always make more money but you can never make more time.

　　语篇解读：文章讲述的是网购虽然可以节省我们的开支，但是却花了我们大量的时间，省钱是有代价的。

　　5．What is the purpose of paragraph 1 ?

　　A．It mainly shows the curiosity of the author's daughter.

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