What do you think the future will be like? Here are some answers from some students.

    Mary: Everyone will have a computer at home. There will also be many machines in the future. Then people will work only two or three days in a week.

    Jack: The weather in the future will be very hot. People can't live on the earth. They will have to look for (寻找) another planet to live on.

    Linda: I think the life in the future will be nice. There will be a lot of flowers and trees. And cities will look like parks.

    Henry: Every family will have a family doctor, so people will be seldom ill (很少生病) They will live to 120 years old.

以下生物体不是由细胞构成的是（  ）

照样子，完成句子。

例：大象和棕熊立刻行动起来。棕熊刨坑，大象栽树，棕熊培土，大象浇水。

同学们在操场上活动。小松____ ，小力____ ，小玉____ ，小明____ 。

豆类、动物肝脏中含有丰富的铁和锌，这里的“铁”、“锌”是指（　　）

—I want a hamburger and a cup of tea.