题目内容
Which city does the man like better?
A.Beijing. B.Chengdu. C.Shanghai.
— Jimmy, can you help me carry the box?
— Mom, I need a rest. I’m really _________________ out after the basketball game.
—Is Russia ________ European country?
—Yes, it is. It's in ________ north of Asia.
A.an; the B.a; / C.a; the
—Why do English people talk so often about the weather when they start a conversation?
—Well, it’s probably because the weather is a safe topic.
A.perfectly B.patiently C.possibly
1.What caused Ma Long's parents' death?
A.A traffic accident. B.An earthquake. C.A flood.
2.Where does Ma Long live now?
A.In his grandparents'. B.In his uncle's C.In his teacher's.
3.What will the girl do for Ma Long?
A.Raise money for him.
B.Provide clothes for him.
C.Provide school things for him.
A solar-powered airplane finished its first international flight from Switzerland to Belgium. This is a big step for solar power. Solar energy is clean and useful and you can find it everywhere. But what is solar energy? How do we use it? Let’s find out.
Have you ever seen houses with shiny boards on the roofs? Those families are using solar power.
Solar power converts (转换) the sun’s energy which is said to be greater than the other energy used by all humans all the year. People can convert solar power into heat and electricity.
In the 1830s, British scientist John Herschel used a solar collector to cook food in Africa. This is said to be human’s first try at using solar energy. Today, people use it for many things.
Solar energy can light streets, warm houses and heat water. Unlike other resources, the sun’s energy will run out for billions of years.
Australian students from the University of New South Wales made a solar-powered car on their own. It reached a speed of 120 km per hour. The car uses the same amount of electricity as an oven (微波炉). Moreover, American scientists made a solar-powered nanosatellite (微型卫星). Scientists sent it into space in 2012 to try to find Earth-like planets.
However, solar power has its problems. The amount of sunlight that reaches the Earth’s surface changes because of time and weather.
根据上面短文内容填空。
1.It is _________ for a solar power when _________ flew from Switzerland to Belgium.
2.Solar power can be converted into _________ and it is _________ among all the energy people use all the year.
3.John Herschel, a scientist from _________ cooked food with a solar collector in Africa. And this is the first time for humans to _________.
4.Although solar energy can do many things for humans such as lighting streets, _________, people will _________ it billions of years later.
5.Australian students made a solar-powered car by _________ while American scientists made a nanosatellite which _________ into space in 2012.
It’s sad to learn that a whale has died in the ocean. However, that’s not the end for the whale. It has a lot to give to other sea animals after death.
When a whale dies, it quickly sinks (下沉) to the bottom of the ocean floor. There, the whale body provides food and nutrients (营养) to deep-sea animals, which are often hungry for food. The remains can last for hundreds of years and create a complex ecosystem called a whale fall (鲸落).
Chinese scientists found a whale fall for the first time in the South China Sea during a deep-sea expedition (考察) carried out by oceanic research vessel (舰) Tansuo-1, which finished its expedition on April 2, 2020. Tansuo-1 carried the manned submersible (潜水器) Shenhai Yongshi, which is able to dive to a depth of 4,5000 meters.
The whale fall in the South China Sea is about three meters long. Scientists have found several species (物种) of shrimp and fish near the whale fall. Some fish have started to eat the whale’s tail. The whale fall might be quite recent and needs long-term observation (观察), according to Xie Wei, a scientist who took part in the expedition.
The whale fall ecosystem can exist in the deep ocean because great pressure and cold temperatures there prevent body from decomposing too quickly. But the depth also makes it hard for scientists to discover them. There are about 50 known whale falls in the world.
By studying the whale fall, scientists can better understand how marine (海洋的) ecosystems support life and how to protect biodiversity (生物多样性) resources in the deep sea.
1.What does the writer try to describe in the second paragraph?
A.when a whale fall happen. B.where a whale fall happen.
C.why a whale fall happen. D.how a whale fall happen.
2.Which sentence about the whale fall in the South China Sea is wrong?
A.It was found during a deep-sea expedition.
B.There was several species of shrimp and fish around it.
C.Scientists have finished the study of it.
D.Scientists from China found it on April 2, 2020.
3.The underlined words “decomposing” in Paragraph 5 means _________.
A.putting in B.going bad C.falling over D.setting off
4.Why do scientists study the whale fall?
a. To understand how marine ecosystem support life.
b. To find how long the whale fall is.
c. To protect biodiversity resources in the deep sea.
d. To study whether fish eat the whale’s tail.
A.a b B.a c C.b c D.b d
5.Which magazine can we probably find this article in?
A.Science. B.Geography. C.Mystery. D.Travel
My son often plays _________ football with his friends after school.
A.a B.an C./ D.the
1.When will the Friday races be held?
A.May 10th-June 10th. B.June 10th-July 10th. C.May 10th -July 10th.
2.How much should a student pay to join the club?
A.One dollar. B.Two dollars. C.Three dollars.
3.Why does the race set no prizes?
A.To keep safe. B.To save money. C.To enjoy running.
4.What will all runners get for free before the race?
A.Running shoes. B.Bottled water. C.Healthy snacks.
5.Who starts first in the race?
A.Beginner runners. B.More experienced runners. C.The most experienced runners
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