4.The 14th China Airshow was held from November 8
th to 13
th in Zhuhai.More than 42 countries took part in the show,including the United States,the United Kingdom,Australia and many other countries.Among the different models of airplanes,the J-20 Drone(無人機(jī))took many people's breath away.
The drone is one of the greatest inventions in recent years.A drone is light and
portable,which makes it possible to reach high places in a very short time and be put in a backpack easily.
Some small drones are widely used for taking photos and putting on light shows.Other larger drones are used to carry things to far places in a smart way.For example,Mei Tuan Takeout uses drones to send food or packages to people's offices in Shenzhen.The delivery time has been greatly cut down.Drones can be also set to finish tasks for farmers.They can spray pesticide and check whether the crops are growing well at different time of a day.So a farmer can look after land five times larger than that before.Scientists are also using underwater drones to get information on CO
2 levels in the ocean.It's the newest way to study the ocean's condition and improve its environment.
Drones have a deep influence on our life.People never stop the steps of flying in the sky.In the future,can you imagine what there will be when you look up at the sky?
(1)How long did The 2022 China Airshow last?
A.Six days.
B.Seven days.
C.Eight days.
D.Nine days.
(2)The underlined word "
portable " means
.
A.easy to send
B.easy to watch
C.easy to make
D.easy to carry
(3)According to the passage,drones are made to
.
①save people②take photos③hold light shows④carry things
A.①②③
B.①②④
C.①③④
D.②③④
(4)According to the passage,we can know that
.
A.drones can only fly up to high places in the sky
B.drones are helpful to make a better ocean environment
C.Mei Tuan Takeout uses drones to send things in Zhuhai
D.more farmers can look after less land with the help of drones
(5)Which is the best title of the passage?
A.The Future of Drones
B.The History of Drones
C.The Use of Drones
D.The Show of Drones