根据短文内容， 从题中所给的A、B、C、 D四个选项中选出最佳选项， 并将所选答案涂到答题卡的相应位置上。
Perfect flowers
You may be surprised at how perfect a flower can look when it is dried (变干)in a special way.
You'll need
·Two small fresh flowers
·Small box with low sides
·Cornmeal (玉米粉)
·Laundry powder (洗衣粉)
·Very small brush
1.
Cut flower stems to about 5 cm long;
Pour 3 cm of laundry powder in box;
Add same amount of cornmeal and mix
2.
Gently bury (埋) one flower, with its top pointing downward
Put the box in a dry place.
Leave the other flower out
in the air in a dry place.
3.
In a few days, when the second flower is dry, very carefully brush powder away from the first flower and take it out of box
What happened?
The first flower looks natural, like a fresh flower
The second flower gets twisted (扭曲的) and unnatural looking when it dries in the air.
The mix of laundry powder and cornmeal takes away the water from the flower.
1.According to this passage, to make dried flowers, you need _________ materials.
A.3 B.4 C.5 D.6
2.Which is the right order to make a natural dried flower?
①Put the box in a dry place. ②Add cornmeal ③Brush powder away. ④Cut flower stems.
⑤Bury flower in the powder. ⑥Pour laundry powder.
A.④⑥②①⑤③ B.④⑥②⑤①③ C.④⑥②③⑤① D.④⑥①⑤③②
3.Why does the second flower look so unnatural?
A.Because it was directly dried in the air. B.Because it was not naturally twisted.
C.Because it was a special flower. D.Because it was dried in the laundry powder.
4.What are laundry powder and cornmeal used for?
A.To wash the flower. B.To be brushed away by the small brush.
C.To pour into the box. D.To take water away from the flower.
5.From this passage we know that________.
A.we can make dry flowers by a special way
B.we can get a natural dried flower by using a box with nothing in it
C.we can use laundry powder and cornmeal to dry everything
D.we can leave the flower out of the box in a dry place
根据短文内容，判断正误（正确“T”，错误“F”），并将答案涂到答题卡的相应位置上。
“Which is the right bin for my rubbish?” This may be the most asked question in Shanghai since it started a new garbage-sorting (垃圾分类) program on July 1, 2019 When learning about the four kinds of rubbish-wet, dry, recyclable (可回收的) and harmful-many people maybe don' know how to properly sort it.
To help people solve this problem, China's technology companies are giving a hand. For example, if you want to know which bin your wet wipes (湿巾) should go in, you can just open a mini app in WeChat or Alipay and look for “wet wipes”. The app will give you the answer right away. Soon, you might do it in an easier way. Maybe you can just take a photo of the rubbish and then be told where it should go.
This kind of technology is called image recognition (图像识别). It uses artificial intelligence (AI, 人工智能). Many companies around the world are making garbage-sorting robots that use this technology. For example, AMP Robotics in the US has made a robot that can sort food and drink packages (包装).By “seeing” pictures on the packages, the robot will pick up the rubbish and put it in the right place.
The future of garbage-sorting looks good. But it's not the best way. The best thing we can do is to make less rubbish in the first place.
1.The people in Shanghai must put the rubbish into the right bin since July 1, 2019.
2.People know how to sort the five kinds of rubbish.
3.WeChat can help people sort the rubbish correctly.
4.According to paragraph 3, garbage-sorting robots can only “seeing”pictures on the packages.
5.Making less rubbish is the best thing we can do in the first place.
There was a famous scientist who made several important discoveries. Once he was asked how he was able to be so _______. He_______that it all came from an experience he had with his mother when he was 2 years old. He was trying to take a bottle of_______ out of the fridge. But the bottle was too slippery （滑的） and he dropped it. The kitchen floor was covered in milk.
When his mother came into the kitchen, instead of shouting at him or punishing him, she said, “Robert, what a _______ mess you have made! I have never seen such a huge puddle of milk. Would you like to play in the milk for a few minutes_______we clean it up?“
_______ . After a few minutes, they cleaned it up together. Then his mother said, “This was a failed experiment （实验） in how to carry a big bottle of milk with two tiny hands. Let's go out in the backyard and fill the bottle with water and see if you can find a way_______ it without dropping it.“
The little boy learned that if he held the bottle at the top near the lip （边缘） with both hands, he could carry it without dropping it_______ wonderful the lesson was!
The scientist then added that it was at that moment that he knew he didn't need to be afraid to_________. He learned that mistakes are just chances to learn________________ which is, after all, what scientific experiments are all about
1.A.fast B.happy C.creative D.strong
2.A.replied B.knew C.thought D.realized
3.A.water B.juice C.cola D.milk
4.A.bad B.wonderful C.wrong D.different
5.A.before B.after C.as soon as D.when
6.A.So he was B.So was he C.So he did D.So does he
7.A.carry B.to carry C.carried D.carrying
8.A.what a B.what C.how a D.how
9.A.make decisions B.make mistakes C.make progress D.make noises
10.A.anything new B.new anything C.something new D.new something
—Do you know________?
—Of course. The winner is my good friend.
A.what is the competition about B.who wins the competition
C.what was the competition about D.who won the competition
—Do you like watching movies?
—Yes. I prefer movies ________give me something to think about.
A.that B.what C.when D.who
With the development of China, Chinese ________a bridge to connect China with the rest of the world for years.
A.became B.has become C.becomes D.will become
