根据对话内容，从下面方框中选择适当的单词填空，使对话内容完整正确。

Reporter：Can you introduce something about your latest class activity?
Monitor：Sure. The students from our class planted some lines of trees on March 12^th, 2008.
Reporter：How did you plant trees?
Monitor：First, the students were                  【小题1】              into groups of four. Next, each group of students planted a tree. Then, they poured some water over the trees.
Reported：How do you    【小题2】     for the trees?
Monitor： We plan to come back and look after the trees          【小题3】              .
Reported：Sounds good. Could you tell me why you choose to do that?
Monitor：As you know, pollution has become one of the most serious    【小题4】   . We would like to try our best to improve our environment. 
Reporter：Well, it’s very meaningful. If everyone can do something to protect the environment        【小题5】, our city will become much more beautiful.

根据对话内容，从下面方框中选择适当的单词填空，使对话内容完整正确。

Reporter：Can you introduce something about your latest class activity?

Monitor：Sure. The students from our class planted some lines of trees on March 12^th, 2008.

Reporter：How did you plant trees?

Monitor：First, the students were                   76              into groups of four. Next, each group of   students planted a tree. Then, they poured some water over the trees.

Reported：How do you    77      for the trees?

Monitor： We plan to come back and look after the trees           78              .

Reported：Sounds good. Could you tell me why you choose to do that?

Monitor：As you know, pollution has become one of the most serious    79    . We would like to try our best to improve our environment. 

Reporter：Well, it’s very meaningful. If everyone can do something to protect the environment         80         , our city will become much more beautiful.

Thinking is something you choose to do as a fish chooses to live in water. To be human is to think. But thinking may come naturally without your knowing how you do it. Thinking about thinking is the key to critical(批判性的) thinking. When you think critically, you take control of your thinking processes（过程）. Otherwise, you might be controlled by the ideas of others. Indeed, critical thinking is at the heart of education.
The word “critical” here has a special meaning. It does not mean taking one view against another view, as when someone criticizes another person for doing something wrong. The nature of critical thinking is thinking beyond the easily seen--beyond the pictures on TV, the untrue reports in the newspapers, and the faulty reasoning.
Critical thinking is an attitude as much as an activity. If you are interested in life and want to dig deeper into it, you are a critical thinker. If you find pleasure in deep thinking about different ideas, characters, and facts, you are a critical thinker.
Activities of the mind and higher-order reasoning（推理）are processes of deep and careful consideration. They take time, and do not go hand in hand with the fast speed in today’s world: fast foods, instant coffee, and self-developing film. If you are among the people who believe that speed is a measure（尺度）of intelligence（智慧）, you may learn something new from a story about Albert Einstein. The first time Banesh Hoffman, a scientist, was to discuss his work with Albert Einstein. Hoffman was too nervous to speak. But Einstein immediately made Hoffman feel comfortable by saying, “Please go slowly. I don’t understand things quickly.” 
【小题1】Critical thinking is important to us because if we do not think critically, _______.