Question

The American company Otherlab has built a new drone (無(wú)人機(jī)) which the company calls “Sky Machine”.

Compared with other unmanned aircraft (無(wú)人機(jī)), the drone is very different. It is made almost completely out of cardboard. It can be packed with materials and sealed (密封) up with tape.

The drone looks like a big paper airplane that we used to make as kids. But this light flyer is not a toy, it was designed to be dropped from airplanes. Hundreds of drones could be launched at once and then they are guided to where they are supposed to go to complete deliveries (遞送) to different places over an area covering hundreds of kilometers.

The company says it can travel about 150 kilometers at speeds up to 88 kilometers an hour. Now it can carry materials weighing up to one kilogram, but future ones are expected to carry heavier loads (負(fù)荷).

One of the drone’s main advantages is that it does not have a heavy motor or large battery. This provides more room for materials and makes the drone cost less to build and work.

The technology that guides the drone can make it land within 10 meters of its target, according to Otherlab. And once the drone completes its delivery, ▲ and the cardboard material will decompose (分解) within a few months.

Otherlab says the drones can also be reused. Otherlab has received money from the U.S. Department of Defense to carry out research on the drones. The U.S. military has a need for delivery drones. But the delivery drones they usually use can be stolen and studied by others if found after use. Before they can truly disappear, the electronic materials inside the drones must also somehow disappear. Otherlab’s Sky Machine is an attempt to fill that need. Researchers are still working on ways to get the technology itself to selfdestruct (自毀).

1.What makes the new drone very different from other unmanned airplanes?

A. It will drop things while flying.

B. It can be played as a toy.

C. Its main material is cardboard.

D. It was made by Otherlab.

2.Having no heavy motor or large battery can _______.

A. make the drone fly faster

B. make it difficult for the drone to land

C. make the drone cost more to build

D. provide more space for carrying materials

3.Which of the following can be put in ▲ ?

A. it can be thrown away

B. it will go to the next place

C. it can fly back where it lands

D. it will land within 10 meters of its target

4.From the last paragraph, we can learn that _______.

A. the U.S. military is using Otherlab’s Sky Machines

B. the delivery drones the U.S. military uses are always stolen

C. the U.S. Department of Defense supports Otherlab’s research

D. the electronic materials inside a military drone can disappear easily

Answer 1