Nowadays, food has become easier to prepare. Has this change improved the way people live? Use specific reasons and examples to support your answer.
主体段 1：食物改善了人们的生活方式的原因 1 + 举例论证
主体段 2：食物改善了人们的生活方式的原因 2 + 举例论证
主体段 3：食物改善了人们的生活方式的原因 3 + 举例论证
背景句：The twentieth century has brought with it many advances. With those advances, human lives have changed dramatically. In some ways life is worse, but mostly it is better.
个人观点：Changes in food preparation methods, for example, have improved our lives greatly.
主题句：Firstly, some of the attributes of science subjects become the natural obstacles for students to take on the path of exploring science.
举例论证：The convenience of preparing food today is amazing. Microwave cooking is much easier. We can press a few buttons and a meal is completely cooked in just a short time. People used to spend hours preparing an oven-cooked meal, and now they can use that time for other, better things. Plus, there are all kinds of portable, prepackaged foods we can buy. Heat them in the office microwave, and lunch at work is quick and easy.
主题句：Food preparation today allows for more variety.
举例论证：With refrigerators and freezers, we can preserve a lot of different foods in our homes. Since technology makes cooking so much faster, people are willing to make several dishes for even a small meal. Parents are more likely to let children be picky, now that they can easily heat them up some prepackaged macaroni and cheese on the side. Needless to say, adults living in the same house may have very different eating habits as well. If they don’t want to cook a lot of different dishes, it’s common now to eat out at restaurants several times a week.
主题句：Healthful eating is also easier than ever now.
举例论证：When people cook, they use new fat substitutes and cooking sprays to cut fat and calories. This reduces the risk of heart disease and high cholesterol. Additionally, we can buy fruits and vegetable fresh, frozen or canned. They are easy to prepare, so many of us eat more of those nutritious items daily. A hundred years ago, you couldn’t imagine the process of taking some frozen fruit and ice from the freezer, adding some low-fat yogurt from a plastic cup and some juice from a can in the refrigerator, and whipping up a low-fat smoothie in the blender!
Our lifestyle is fast, but people still like good food. What new food preparation technology has given us is more choices. Today, we can prepare food that is more convenient, healthier, and of greater variety than ever before in history.
needless to say 不用说;不必说
whip up 很快做好(尤指一顿饭);煽动
low-fat smoothie 低脂冰沙