The Nanobots quiz

1. 1. In the first paragraph, the writer says that the nano-spider

• A) is much thicker than a human hair.

• B) cannot be seen under a microscope.

• C) was invented by an individual scientist.

• D) is an extremely small machine.

2. Why does the writer suggest nano-spiders can be classified as robots?

• A) because they have the features of a robot

• B) because they can walk

• C) because they are built with computer chips

• D) because they are microscopic devices

3. What does 'this' refer to in I. 30?

• A) the number of steps DNA walkers can manage

• B) the walking distance a DNA walker can do

• C) the length of the DNA walkers

• D) the time each step takes for a DNA walker

4. What do we learn about nano-spiders in the fifth paragraph?

• A) They could protect our bodies from disease in the future.

• B) They are already being used to fight cancer.

• C) They have been used for various medical purposes in the past.

• D) They have not actually been invented yet.

5. 5.What does the writer say about arguments against the use of nanotechnology?

• A) People are concerned that it is used to build computer parts.

• B) People are concerned that nano-products are not tested before they are sold.

• C)There are concerns about whether the industry has strict rules for safety.

• D) There are no concerns about nanotechnology in medicine.

6. All in all, the writer presents nanobots as devices which

• A) we should be afraid of.

• B) have already been in use for many years.

• C) may be very useful in the future.

• D) are mainly useful in industry.