内容正文:
Unit 2 Knives and forks are used for most Western food. 基础训练 一、根据语境或提示,完成填空。 1.In the hall,two _(gentleman) are talking.They might be teachers. 2.Just say it,come on! Don't worry! They won't get c_ with you. 3.I prefer finger food, such as fried chicken w_ and hamburgers. 4.Junior high school days will be o_ in one month.How are you feeling? 5.At the party, all the _(lady) dressed simply. 6.I visited my old friend yesterday and he _(招待) me with lots of delicious food. 二、单项填空。 ( )1.Their school suit is _ to ours,but ours looks more beautiful. A.interesting B.different C.strange D.similar ( )2.Do you think plants _ on Mars? A.can find B.can be found C.can be finding D.can found ( )3.My dad will be_ if I spend too much time watching TV. A.cross B.crossed C.crossing D.crosses ( )4.Our teacher told us to do _ he did. A.to B.as C.by D.for 强化提升 三、阅读理解。 B(跨化学学科) Cookies, cakes, ice cream, pudding, candies are all sweets that people can hardly refuse, especially kids.Studies have shown that kids have a built-in love of all sweet things.Even newborns prefer sweeter milk.And kids love drinks with so much sugar.So why does sugar taste so good? On the one hand, sugar provides our body with calories(热量), which are turned into energy.Children need energy to power their rapid growth.Sugar also helps to store fat, which we can make use of when we don't have enough energy.As a result, sugar is the thing our body needs.When our body needs sugar, it sends signals to our brain and we start eating what we are missing. On the other hand, we love sugar because it is commonly found in the plants we eat.Plants use sunlight to process water and CO2 into a type of sugar called glucose(葡萄糖).That glucose then provides the plant with food and the building materials for cell walls.And plants not only offer sugar but also many important things our body needs, such as vitamins and iron(铁).But our tongues(舌头) are especially good at tasting sugar but bad at tasting vitamins and iron.That's to say, we