= How + Adj + a + N + V! 例句:What an important thing it is to keep our promise! How important a t——青夏教育精英家教网—

= How + Adj + a + N + V! 例句:What an important thing it is to keep our promise! How important a thing it is to keep our promise! 遵守诺言是多么重要的事! 【查看更多】

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　　The hostess was to have a party and entertain guests at home．She busied herself so early in the morning, cleaning the house．She was so tired 　　1　　 she felt pain in her waist and on the back．Drops of sweat fell from her forehead．She did not finish cleaning the house 　　2　　 dusk．

　　　　3　　(look)at the clean and tidy drawing room, she released a sigh with a smile on her face．The guests were coming! Entering the drawing room, they 　　4　　(attract)by the fresh flowers．Surprisingly pleased, they cheered in praise, "Oh, what beautiful flowers!"

　　"How colorful and fragrant!"

　　"Just a look at it, and life is full of pleasure!"

　　Then they went on to express their thanks 　　5　　 the hostess for her 　　6　　(delicate)arranged flowers．

　　With an embarrassed smile, the hostess said," I am glad you like it．Thank you for your praise．I was 　　7　　 bit surprised about it．I 　　8　　 make detailed arrangement for your honor．I was busy the whole day cleaning and mopping．As to the flowers in the vase, it is a piece of cake．I did it by just lifting my hand．Now you are 　　9　　(aware)of my hard work and praise 　　10　　 highly for my easiest effort．It is beyond my expectation．"

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A Train Floating On Air

　　A train that floats on air? It's not magic－it's magnets(磁)．And it's close to reality．

　　In Virginia USA the fall of 2002, a train with no wheels traveled on air and carried college students across their campus．In Japan, a whisper-quiet railway engine hovered and raced at 350 miles per hour using magnets and electricity as the power．And in China, a magnet train line linked Shanghai with nearby Pudong Airport．

　　These trains use magnetic levitation(悬浮)technology, “maglev” for short．They use the same rules as the magnets you pick up at home or school：opposite poles of magnets attract each other, and like poles repel each other．

　　How does it work?

　　Powerful magnets on the bottom of train repel magnets on the track, which is actually just a magnet-filled guiding way．With a magnetic field of sufficient force, the train will go hovering on air, which seemed impossible to us in the past．

　　When an electrical current is sent through the track, the train moves．Turn the current backwards and the train slows down．

　　Maglev doesn't rely on the friction(摩擦力)of wheels on track, so it can climb a much steeper hill than a traditional train．And it can travel easily in snow and ice, something that could bring normal trains to a screaming stop．

(1)

This passage is about ________．
[　　]
A．	maglev
B．	magnets
C．	levitation
D．	electricity

(2)

Which of the following is a repelling action?
[　　]
A．
B．
C．
D．

(3)

What can we learn from the text?
[　　]
A．	A magnet-filled guiding way is formed inside a maglev train．
B．	Instead of electricity, magnets are used as the power of a maglev．
C．	Maglev trains can climb hills with the help of magnet wheels．
D．	Electric currents decide the movements of a maglev train．

(4)

What is the difference between a maglev train and an ordinary train?
[　　]
A．	A maglev train can climb mountains without power while an ordinary one can't．
B．	A maglev train can travel in college campus while an ordinary train is not allowed．
C．	Travelling without a track, a maglev train is safer and smoother than an ordinary one．
D．	Floating on a track, a maglev train is faster, quieter than an ordinary, railway train．