《【高分突破】九年级英语期末复习课件与练习（人教新目标）》06 Unit 6 When was it invented与练习（人教新目标）（学生版）

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Unit 6 When was it invented -

过关训练

一、单选题

1．I don’t like eating chocolate. The taste is too ________.

A．crispy B．delicious C．salty D．sweet

2．Two of my friends ________ in a road accident last Sunday.

A．injured B．was injured C．were injured D．have been

injured

3．_________ you finish your homework, you can go out to play.

A．As well as B．Unless C．As long as D．As far as

4．She spoke loudly _________ everyone could hear her.

A．to B．in order to C．so that D．that

5．Now more and more man-made satellites are _________ by humans.

A．sent for B．send C．sent up D．sent into

6．—I can't believe it! This beautiful dress is designed by Susan.

—Really? She is so _________.

A．shy B．creative C．important D．silly

7．I don’t know what it is made __________.

A．by B．from C．with D．in

8．He wants to make his invention more successful, so he __________ it for many times.

A．designed B．redesigns C．plan D．plans

二、完型填空

I have had the pleasure of meeting a few neighbors. They seem to be quite kind people.

For Christmas, I thought I would do something nice for each of the neighbors that I knew. I

sat down and counted. There were nine neighbors, and I also knew which houses they lived

9 .

However, I decided to add one more person to my list, the lady I met every morning

walking to work when I drove down the street. She always gave me a sweet smile and a

friendly wave(挥手), 10 I had no idea about her address.

My gift idea was to make small 11 baskets and leave them on each of my neighbors'

front porches(门廊) the night of Christmas Eve. I kept the last one for the friendly lady

because I was still not sure about where she lived. It was 12 the house down about where

I met her each morning. Finally I decided to put it there. My neighbors really enjoyed the

baskets and a couple even came by to thank me.

This morning I got a Thank you card.

The card said, “Thank you for those lovely apples and strawberries you left on the porch

of Thomas. He 13 on January 19, but he never stopped 14 about how nice it was that

he was remembered in his time of illness. He really enjoyed it. ”

I was very 15 . Why he sent a card to me? I had no idea 16 Thomas was or that he

had been seriously ill. I had left that nice lady's basket on Thomas' porch by accident. I

believe Thomas never expected to have that basket. I feel sorry that the nice lady didn't get a

basket from me, but I believe if she knew what had happened, she would 17 me.

I feel lucky to have helped Thomas be more cheerful in his last days. This just makes me

further believe that sometimes 18 in life are beautiful.

9．A．/ B．to C．with D．in

10．A．but B．so C．unless D．because

11．A．flower B．food C．vegetable D．fruit

12．A．clearly B．maybe C．certainly D．sure

13．A．dead B．has been dead C．died D．has died

14．A．talk B．talked C．to talk D．talking

15．A．nervous B．surprised C．relaxed D．excited

16．A．where B．when C．what D．who

17．A．understand B．punish C．stop D．tell

18．A．gifts B．mistakes C．problems D．questions

三、阅读单选

There's a new frontier in 3D printing that's beginning to come into focus: food. Recent

development has made possible machines that print, cook, and serve foods on a mass scale.

And the industry isn’t stopping there Food production

With a 3D printer, a cook can print complicated chocolate sculptures and beautiful

pieces for decoration on a wedding cake. Not everybody can do that-it takes years of

experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to "re-create

forms and pieces" of food that are "exactly the same," freeing cooks to complete other tasks.

In another restaurant, all of the dishes and desserts it serves are 3D-printed, rather than farm

to table.

Sustainability（可持续性）

The global population is expected to grow to 9.6 billion by 2050,and some analysts

estimate that food production will need to be raised by 50 percent to maintain current levels.

Sustainability is becoming a necessity. 3D food printing could probably contribute to the

solution. Some experts believe printers could use hydrocolloids（水解胶体） from plentiful

renewables like algae（藻类）and grass to replace the familiar ingredients（烹任原料）.

3D printing can reduce fuel use and emissions. Grocery stores of the future might stock

"food" that lasts years in a row, reducing transportation and storage requirements.

Nutrition

Future 3D food printers could make processed food healthier. Hod Lipson, a professor at

Columbia University, said, "Food printing could allow consumers to print food with

customized nutritional content, like vitamins. So instead of eating a piece of yesterday’s bread

from the supermarket, you'd eat something baked just for you on demand.”

Challenges

Despite recent advancements in 3D food printing, the industry has many challenges to

overcome. Currently most ingredients must be changed to a paste（糊状物）before a printer

can use them, and the printing process quite time-consuming, because ingredients interact

with each other in very complex ways. On top of that, most the 3D food printers now are

restricted to dry ingredients, because meat and milk products may easily go bad. Some

experts are skeptical about 3D food printers, believing they are better suited for fast food

restaurants than homes and high-end restaurants.

19．What benefit does 3D printing bring to food production?

A．It helps cooks to create new dishes

B．It saves cooks' effort in cooking.

C．It improves cooking conditions.

D．It contributes to restaurant decorations.

20．What can we learn about 3D food printing from Paragraphs 3?

A．It solves food shortages easily.

B．It saves fuel and produces no pollution.

C．It needs no space for the storage of food.

D．It uses renewable materials as sources of food.

21．According to Paragraph 4, 3D-printed food .

A．is more popular among consumers

B．can meet individual nutritional needs

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