相關(guān)習(xí)題
 0  93924  93932  93938  93942  93948  93950  93954  93960  93962  93968  93974  93978  93980  93984  93990  93992  93998  94002  94004  94008  94010  94014  94016  94018  94019  94020  94022  94023  94024  94026  94028  94032  94034  94038  94040  94044  94050  94052  94058  94062  94064  94068  94074  94080  94082  94088  94092  94094  94100  94104  94110  94118  159627 

科目: 來源: 題型:

2. I want to be an__________ (explore) into the unknown areas of the world.

查看答案和解析>>

科目: 來源: 題型:

1. These new________ (invent) have changed our world a lot.

查看答案和解析>>

科目: 來源: 題型:

On a fine day last month, there were many small cars parking in the People's Square. They looked more like colorful eggs than ordinary cars. The cars were electric, rolled(滾動(dòng))on two wheels instead of four and could carry only two passengers. Thanks to their small size,six of the cars would share a parking spot. If the idea of parking such a small car makes you nervous, don't worry about that. These cars can park themselves and return to the owner controlled by a cellphone.

The car is called the EN-V. It is designed by the General Motors. One day, such small, electric cars might safely carry people around, especially in crowded cities. Scientists and engineers are finding new ways to make cars safer,smarter and more efficient or use less energy. New


 

cars may help you keep healthy by telling you to take medicine. Cars may even talk to other cars,your computer, your phone and so on.

This is the future of cars. They are safer, smarter and more energy-conscious (節(jié)能的). They might even drive themselves down the highway or through a city. You can sit back and enjoy your journey.

閱讀短文,判斷正(T)誤(F).

(   ) 1. This passage introduces a new kind of cars that have been used widely.

(   ) 2. Like the ordinary cars,the EN-V cars have four wheels each.

(   ) 3. You can ask your EN-V car to return to you by your cellphone.

(   ) 4. The EN-V car can help you to keep healthy.

(   ) 5. From the passage we learn that future cars will be safer, smarter, and use less energy

查看答案和解析>>

科目: 來源: 題型:

(   ) 1. Thomas Edison

(   ) 2. Guglielmo Marconi

(   ) 3. John Baird

(   ) 4. Karl Benz

(   ) 5. Alexander Graham Bell

(   ) 6. Wilbur and Orville Wright

n

A.  car

B.  light bulb

C.  telephone

D.  plane

E.   radio

F.   television

查看答案和解析>>

科目: 來源: 題型:

 again and again, come to the idea,in many ways,come about,follow, most of the time,laugh at

1. To finish your task, you should         these steps.

2. Use your head,and then you may          of your invention.

3. The old worker is able to find new ways of solving problems      

4. Robots can help us      in the future.

5. When I face new difficulties,new inventions may      

查看答案和解析>>

科目: 來源: 題型:

5. Plan your process more carefully to make your invention more       (成功)

查看答案和解析>>

科目: 來源: 題型:

4. You must      (測(cè)試)that machine carefully before using it.

查看答案和解析>>

科目: 來源: 題型:

3. They are playing games with toy       (槍).

查看答案和解析>>

科目: 來源: 題型:

2. Do you know the meanings of the symbols on this        (鍵盤)?

查看答案和解析>>

科目: 來源: 題型:

1. They could fly over high mountains with

the help of      (熱氣球)at that time.

查看答案和解析>>

同步練習(xí)冊(cè)答案