()3.看了川剧变脸，你想知道演员是如何变脸的，你可以问：

A.What colour are they?
B.Can you do it for me?
C.How come?

3. C

()4.—Can you see the lion on the screen? —

A.No, thank you.
B.Yes, it's here.
C.Yes, I do.

4. B

五、科学老师给同学们带来了一种神奇的花。选择合适的句子补全对话。
A：1. These are morning glories(牵牛花). What colour are the flowers?
B：2. In the afternoon...
A：3. Can you see them?
C：They're pink now! 4.
A：Because they have anthocyanin(花青素). Let's learn together!
A. What about now?
B. They're blue.
C. How come?
D. Good morning, class!

1. D 2. B 3. A 4. C

六、提素养 科学精神 科学老师在讲“神奇的颜色”。阅读材料，完成下列任务。
Colours are full of magic. There are three primary colours(三原色)：red，blue and yellow. There are three secondary colours(二次色)：orange，purple and green. We can mix primary colours to make secondary colours.
The colour wheel(色轮)shows us primary and secondary colours. Red and yellow are next to(紧挨着)orange. We mix red and yellow to make orange. Red and blue are next to purple. We mix red and blue to make purple. What makes green?

任务一：根据材料，选择正确的答案。
()1. ， and are primary colours.
A. Red；blue；green
B. Red；blue；yellow
C. Orange；blue；yellow
()2. What's the meaning of “mix” in the text?
A. 制作
B. 混合
C. 交往
()3. What can make green?
A. Blue and yellow.
B. Orange and yellow.
C. Blue and purple.
任务二：请根据材料，在色轮中写出正确的单词补全色轮。

任务一：1. B 2. B 3. A
任务二：从“yellow”开始按照顺时针方向依次填 green、blue 和 red。