Unit 2Is your food and drink healthy,1.Is your food and drink healthy?(教材P22)你的食物和饮料健康吗? 解读 此句中healthy为形容词,在句中作表语或定语,其反义词是unhealthy。 Is it healthy food?它是健康的食物吗? You look very healthy.你看起来很健康。 拓展healthy的名词形式为health,短语in good health表示“身体健康的”,相当于be healthy。 My mother is very healthy.=My mother is in good health.我妈妈很健康,2.Eat the right food and be healthy.(教材P22)吃合适的食物,保持健康。 解读 此句是由and连接的两个祈使句,对饮食提出建议。祈使句用动词原形开头,故后句的“保持健康”用了be动词原形,be也可以用系动词stay来代替。 Sit down and open your books.坐下,打开你们的书,3.Milk,chees