4. One day technology will advance so far that ______ travel will be a daily occurrence. We’ll be able to go to other solar systems!

cutting-edge       cyborg       integrated       interstellar

5. This species of tomato is actually a ______ of the American and European varieties.

cyborg       hybrid       seismic       patch

答案 1. 阅读课文并回答问题。 

1. According to the article, what is a cyborg?

A cyborg is a human-robot hybrid. They are ordinary humans who have been enhanced in some way by technology. 

2. Which enhancements do the two cyborgs mentioned in the article have?

One has an antenna protruding from his head which allows him to hear colours. The other has an implant that allows her to sense seismic activity. 

3. Why is graphene such a useful material?

It’s 200 times stronger than steel and conducts electricity better than gold.

4. Apart from biomedical applications, what other use can graphene have?

Apart from biomedical applications, graphene tattoos can also be used as controllers for electronics.

5. True or false: The human body is exactly the same as a battery.

False. The human body is basically an electrical machine.

2. 请在不参考课文的情况下完成下列练习。选择一个意思合适的单词填入句子的空格处。

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