Last March,many trees along the streets to make our city more beautiful. A. were planted B. were planting C. had planted D. planted 题目和参考答案——青夏教育精英家教网—

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( ) 4. Last March,many trees along the streets to make our city more beautiful.

A. were planted B. were planting C. had planted D. planted

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2. Cindy invited me to her birthday party yesterday.

7. If it ( not rain ) ，I ( go) cycling in the open air.

( ) 4. The beautiful kite was made Uncle Wang.

A. in B. at C. by D. to

4. He (invite) to competitions around the world.

( ) 9.―Who is that little boy in the photo,Oscar?

―Oh,it's me!It when I was five years old.

A. was taken B. took

C. was taking D. is taken

①感到放松

A recent research shows that physical activity (体育活动) may help students do better in their classes. The research comes because educators in some countries are reducing time for activities like P. E. class.

Researchers go over the results of fourteen studies. Twelve were from the United States,one from Canada and one from South Africa. The studies appeared between 2009 and 2013. They included more than 55,000 children, aged six to eighteen.

Thomas Singh,one of the researchers,says the studies showed a relationship between physical activity and scores on subjects such as math,Eng?lish and reading. Ms. Singh offers some possible explanations (解释) ：

"There are,first,physiological (生理的) explanations,like more blood flow* and so more oxygen (氧气) to the brain. Being physically active means there are more hormones (荷尔蒙) produced like endorphins (脑内啡) ，And endorphins make your stress level lower and your mood improved,which means you will perform better in class. Also,students who take part in organized sports learn rules and how to follow them. This could improve ：heir classroom behaviour and help them know what ：hey should do.

All in all, the finding tells us that physically active kids are more likely to do better in school. Ms. Stugh says schools should considex the finding before they cut physical education programmes.

( ) 26. What led the researchers to do the studies? \

A. Schools' cutting physical activity.

B. Their interest in physical activities.

C. The tests included about 55,000 chil?dren.

D. Kids' unsatisfying with schooling per?formance.

( ) 27. How many countries took part in the studies?

A. 14. B. 12 C. 2. D. 3.

( ) 28. Which of the following is NOT one of the advantages of physical activity according to the passage?

A. Getting more blood flow.

B. Better classroom behaviour.

C. Feeling relaxed and refreshed.

D. Greater ability to organize activities.

A 15-year-old student who invented a flashlight (手电筒) getting power from the holder's body heat is going home today from California with a big prize and a chance to do further research.

Ann Makosinski was the only Canadian among the four winners at Google's international science competition. Thousands of young scientists from around the world took part in the competition.

Winning the science and technology competition was "a surprise". Ann said, "I think it will have a great influence on my future."

Ann thanked her family for encouraging her in?terest in science and said that her first toy was a box of transistors (晶体管) .

Ann's prize includes $ 25,000 and a "once-in-a-lifetime experience" from Google for her Hollow Flashlight,which has no moving parts or batteries.

The idea for the invention came from seeing un?wanted batteries and her friend's experience. When Ann visited a friend in the Philippines? she saw the friend couldn't study when it became dark because there was no electricity or light. She saw the need for a flashlight that has no batteries―Hollow Flash?light.

In her project,Ann wrote "I made two flash-flights that do not use any batteries or harmful mate?rials. They do not create any noise and will always (work. The flashlight needs at least a 5°C tempera-fture difference between the holder's body and the I environment around to produce light.

A video of Ann explaining how she created the I flashlight has been watched more than 1. 4 million I times on the Internet.

Though Ann was successful,she has not made a decision about her career path. Ann hopes that she can find a way to join her love of film and science to?gether.

The four winners were chosen from 15 final competitors from eight countries. The ( ) 26. In which part of a newspaper can we probably read this passage?

A. Travel.

B. Culture.

C. Technology.

D. Advertisement.

( ) 27. The first paragraph is written to be a (n)

A. introduction B. warning C. argument D. discussion t ( ) 28. Paragraph 6 mainly tells us

A. what Ann saw in the Philippines

B. why Ann invented Hollow Flashlight

C. how Ann's family encouraged her in?terest

D. what prize Ann got for Hollow Flashlight

( ) 29,According to the passage we can learn

A. it's easy to win the international sci?ence competition

B. Hollow Flashlight is safe,noiseless and can save energy

C. Ann has made &decision to be a sci?entist in the future

D. few people are interested in how Ann created the flashlight

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