写作思路：从文章的写作目的、中心主旨入手，以使文章中心思想鲜明、深刻地表现出来，正文：Modern technology makes life more convenient; Tools are milestones of scientific and technological progress and human Man used to saw trees with a hand saw， but now， a tree can be sawed down in a few minutes with a 现代科技使生活更加便捷；工具是科技进步和人类进步的里程碑。人类过去用手锯锯树，但是现在，用电锯可在几分钟内锯倒一棵树。Another example is more vivid: if you have something urgent to inform your friend， and his home is 2 hours away from your home， you may want to make a phone But there is no telephone in your friend's What should you do?另外一个例子更加生动形象：如果你有急事通知你的朋友，而他家距你家有2小时的路程，你可能想打个电话。但是你的朋友家又没安电话，你该怎么办？Nowadays， with the progress of modern science and technology， the use of internet has become very A few years ago， people had to search for a large amount of data to collect the required information， and finally they were exhausted and wasted a lot of Now， if you use the internet， everything will be a piece of As long as you tap the keyboard， you will be 如今，随着现代科技的进步，使用网络已很流行。若干年前，人们不得不查找大量资料来搜集需要的信息，最后人累得疲惫不堪，还浪费了大量时间。现在，如果使用网络，一切就都是小菜一碟了。只要轻敲键盘，就会有求必应。We all expect modern science and technology to reach a higher level， because modern science and technology really makes life more 我们都期待着现代科技能达到一个更高的水平，因为现代科技确实使生活变得更便捷。
