1. (2021七下·顺德月考) 阅读短文，从每小题所给的四个选项中，选出能回答所提问题或完成所给句子的最佳答案。

The world's first 3D-printed neighborhood

A giant 3D printer started to build 2 houses in a rural(乡下的）part of Mexico in December, 2019. Developers(开发者）also hoped to build another 48 new houses by the end of 2020. It would be the first 3D-printed neighborhood in the world.

The families live in a seismic zone(地震带)in the state of Tabasco, Mexico. It's dangerous. So the new houses should be very strong. Also, it's important to keep them dry when there are heavy rains.

    The printer is about 10 meters long. It takes some days to build two houses at the same time.

    The 500-square-foot homes have two bedrooms, one bathroom, a living room and a kitchen.

"Because 3D printing is cheaper and faster than traditional construction(传统建设), there's great potential(潜力)for how it will make the world different," a man said. "Maybe one day anyone would be happy to live in such a house."

1. （1） How many houses would the first 3D-printed neighborhood have by the end of 2020?

   A . 2. B . 52. C . 50. D . 48.
3. （2） Why should the new houses be very strong?

   A . Because the houses lie in a seismic zone. B . Because there are strong winds in the state of Tabasco, Mexico. C . Because it is dangerous to live in the rural part of Mexico. D . Because there are heavy rains in the state of Tabasco, Mexico.
5. （3） Which of the following is not an advantage of the 3D printing houses?

   A . They can be built in a short time. B . They have more than one bathroom. C . They are very strong. D . They cost less money.
7. （4） The passage is most probably taken from__________.

   A . a story book B . a guide book C . a school report D . a science magazine
9. （5） What's the writer's attitude towards the 3D-printed neighborhood?

   A . Hopeful. B . Objective(客观的） C . Worried. D . Happy.