Most of us know about fires，earthquakes，droughts and floods.But from time to time，Mother Nature surprises us，and brings a terrible weather event （事件）.Here are some examples of unusual weather.
Strange rain：One day in 2005，people in a small town in Serbia looked out their windows and saw an unusual sight.It was raining frogs!Without any warning（提 醒 ），they found the streets full of small animals jumping about . "There were thousands of them，" someone said. "I thought maybe a plane carrying frogs exploded （爆炸），" said another.Scientists believe the tornado passed over the lake，lifted the frogs into the air，and then dropped them in a remote Serbian town .
Tornadoes （strong windstorms moving in a circle） of Fire：Tornadoes don't seem to be dangerous enough，but some of them can be made of fire.When a wildfire reaches very
high temperatures，it causes the air to become hot and to rise.Cooler air rushes in to
replace （替代） hot air.This causes strong winds.These?winds?suck?away （吸走） burning?plants and even the fire itself.When?this?happens，just as?it?did in?Denver?on?March 14，2014，a?tornado?of?fire was?produced .This tornado can be up to 15 meters wide and up to 40 stories high.
Great Balls of Ice：In 1942，hundreds of thousands of years skeletons（骨 骼）were found under the ice of Lake Roopkund in the Himalayas.Many had holes in their skulls （頭蓋骨）.But they weren't hurt in any other way.Scientists thought the people must have been hit from above.But for years，they haven't found out the cause of their deaths.
Today，scientists think these people were killed by giant hailstones-balls of ice.The blocks of ice grew bigger and bigger and turned into hail，until（直到） the wind couldn't lift them and the hail fell to the ground，often at a speed（速 度）of over 160 kilometres an hour.Unlucky people at Lake Roopkund had nowhere to run away，so they were all killed by the hailstones.
（1）Which one?is?TRUE?about?the?frogs?raining?down?in?Serbia？ DD
A．They fell out of an airplane that exploded.
B．They grew in the clouds and then fell down to Earth.
C．A heavy rain brought the frogs from a town far away.
D．A tornado took them from a lake and dropped them over the town.
（2）We can put the sentence "This makes them very dangerous." at the end of CC.
A．Paragraph 1
B．Paragraph 2
C．Paragraph 3
D．Paragraph 4
（3）What happens when little pieces of ice move around in the wind？ AA
A．They become bigger.
B．They become higher.
C．They fall to the ground as snow.
D．They become raindrops.
（4）What can we know according to the passage？ DD
A．People's activities cause these three weather events.
B．People in Serbia knew there might be a strange rain.
C．High temperatures cause hotter air to replace cool air.
D．People at Lake Roopkund were killed by balls of ice from the sky.
（5）What is the best title for the passage？ AA
A．Unusual Weather
B．Mother Nature
C．Humans VS Nature
D．Unusual Tornadoes
【答案】D；C；A；D；A
【解答】
【點(diǎn)評(píng)】
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發(fā)布：2024/5/27 14:0:0組卷：143引用：4難度：0.5
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（1）Which of the following can help find family members？
LynQGetting separated from friends or a family member at a music festival can be a real headache.LynQ helps you find your loved ones when you get separated from the group.Unlike your smartphones，this small thing does not need any Wi-Fi to stay connected.It is a great tool for family vacations. 
Philips SomneoThe company Philips has something to help you get up earlier in 2022.The Philips Somneo is here to help you wake up better，without the very annoying（煩人的） sounds of a traditional alarm clock.The Somneo creates what is like a natural sunrise each morning while helping with your sleeping habits. 
EargoThe American company，Eargo is here to add a little excitement to the hearing aid（助聽(tīng)器） market.With 48 million Americans having hearing problems，the team hopes that their easy-to-use comfortable product will give these people the ability to hear again.
A．LynQ.
B．Eargo.
C．Philips Somneo.
（2）How does the Philips Somneo work？
A．By playing soft music.
B．By creating sunrise scenes.
C．By sending out smell.
（3）What is the purpose of the three inventions？
A．To form good habits.
B．To help the disabled.
C．To make life easier.發(fā)布：2024/12/18 5:30:3組卷：3引用：2難度：0.5 -
2．The city of Changchun ，Jilin province gut something special，on Sept 13-its first 3 D-painted bus that gives a feel of diving into the sea and coming into close contact with it.
The idea for the bus ，which belongs to the Beidu Co，came from Wang Zhi，an employee who took part in its creation competition not long ago .and who comments（評(píng)論）"I've seen 3 D buses in other cities and suggested that we have one here. "
The bus，which is also decorated by sea dolls and handicrafts like"dolphins" ，and"starfish" ，runs from Yanminghu villa to the lakeside street and stops at Beilhuancheng Rd.They choose "Sea Tour"as the theme because the color blue and cute creatures might make passengers more relaxed .especially in traffic jams ，says Wang.
Mrs.Liu，who is one of the first passengers ，says，"It's great and I feel like I'm diving into the sea."
"I take the bus to work every day and the decoration makes me feel good on the way，" says Zhang Min，a citizen（市民）in Changchun.
Some passengers ask the driver for the bus timetable ，saying they want to bring their families and friends to enjoy the fun ，while the driver ，Gu Zhenning ，says，"I'm even happier than the passengers working in such a comfortable environment.
The company says it will promote the use of these buses to make the ride more comfortable and enjoyable.
（1）Where did the first 3 D-painted bus appear？
A．In Shanghai.
B．In Beijing.
C．In Jilin.
D．In Zhejiang.
（2）They choose the theme sea tour because.
A．they want the passengers to feel more relaxed
B．they want to attract more passengers to take the bus
C．it is the cheapest of all the themes
D．the driver wants the theme sea
（3）How does Mrs.Liu feel when she took the bus？
A．Sad.
B．Crazy.
C．Terrible.
D．Excited.
（4）What's the best title（ 標(biāo)題）of the passage？
A．A Great Bus Driver
B．The First 3 D-painted Bus in Changchun
C．The Theme Sea Tour
D．How to Relax on a Bus發(fā)布：2024/12/17 23:30:8組卷：0引用：1難度：0.5 -
3．How Soccer Can Help Us Understand Physics Sports provide a great way to understand some concepts（概念） in physics.Physics，after all is the study of matter，motion（運(yùn)動(dòng)），force，and energy.And since sports liken soccer，swimming and cycling involve bodies moving through space，they can help us understand how the principles of physics work.
Imagine that you're looking at a soccer ball on a grassy field.If you do nothing to the ball，it will stay motionless on the grass.If you kick the ball，it will roll along the grass before coming to rest again.Pretty simple ，right？
For thousands of years，though，people thought that objects like this soccer ball come to rest because they have a natural tendency to stop.It took a famous physicist by the name of Sir Isaac Newton，who lived in the 1600s，to prove that this was not exactly correct.
Newton suggested that objects like the soccer ball have a natural tendency to keep moving.The only reason they stop，he believed，is because an unbalanced force acts on them.By an unbalanced force，Newton meant the force applied to the soccer ball by its environment.When kicked，the surface of the ball travels over the grass，creating friction（摩擦力）.The taller the grass，and the rougher the surface of the ball，the more friction is created.And the more friction that exists between the ball and the grass，the less it will travel after being kicked.
Now，imagine that there is no grass.Instead，the ball is resting on a frozen lake.When you kick the ball on the ice，the ball will go much farther than it would have on the grass.This is because ice provides a lot less friction than the grass.
Even so，ice does cause some friction.The ball's interaction with the frozen water crystals on the surface of the lake eventually causes it to come to rest again.But now imagine that instead of ice，the ball is in a place where there's no friction at all.The ball is floating in a vacuum.If you remove friction entirely，kicking the soccer ball would cause it to keep going and going at the same speed，until some force caused it to slow down and sjye.aip.To paraphrase Sir Isaac Newton，a soccer ball on the grass will stay where it is unless acted on by a force.Similarly，once you kick the ball，it will remain in motion unless acted on by force.This，in so many words，is known as Newton's First Law of Motion.
（1）According to the passage ，once an object like a soccer ball is in motion，it has a natural tendency to.
A．stop
B．slow down
C．keep moving
D．change direction
（2）What does the writer explain in the passage？
A．The idea of motion，using sports as examples.
B．The force of friction，using music as examples.
C．The sport of soccer，using examples of teams and players.
D．The importance of understanding the concepts in physics.
（3）What does the underlined word "tendency" mean？
A．A very small chance of something happening.
B．A fifty-fifty chance of something happening.
C．The way something normally behaves or acts.
D．The fear of doing something or acting in a certain way.
（4）The passage is mainly about.
A．the motion of objects
B．the life of Sir Isaac Newton
C．why we have to learn physics
D．why we kick the ball on a grassy land發(fā)布：2024/12/20 0:30:1組卷：32引用：2難度：0.3
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