问题 填空题

某班共30人,其中15人喜爱篮球运动,10人喜爱乒乓球运动,8人对这两项运动都不喜爱,则喜爱篮球运动但不喜爱乒乓球运动的人数为________.

答案

12

设两者都喜欢的人数为x人,则只喜爱篮球的有(15-x)人,只喜爱乒乓球的有(10-x)人,由此可得(15-x)+(10-x)+x+8=30,解得x=3,所以15-x=12,即所求人数为12人.

阅读理解

阅读理解。

      A husband-and-wife team from California reached the Pacific Ocean after a 4,900- mile-cross -country

walk, becoming the first to backpack the American Discovery Trail in one continuous walk. 

      Marcia and Ken powers, of Pleasanton, started the travel across 13 states, through 14 national parks and

16 national forests on Feb. 27 from Cape Henlopen in Delaware. Nearly eight months later, the excited couple

walked through water into the Pacific Ocean at Point Reyes, a day ahead of time.

     "We are a little sad that a great adventure is over. It was a fantastic adventure. And now we go home and

just do housework. It's really sad." Marcia, who said she's in her 50s, and her 60-year-old husband traversed

cities, desert, mountains and farmland before reaching the Pacifics alone with arms around each other's

backpacks. They overcame deep snow in the East, a quicksand in Utah, close lightning strikes in the Mid-west

and strong desert sandstorms in the West while averaging 22 miles a day and taking only four days off. But

they enjoyed the French history of St. Louis' the beauty of the Colorado Rockies and the kindness of strangers

they met along the way. They particularly remember two brothers-a doctor and dentist-who put them up in

their homes, after terrible days, and a motorcyclist who gave them water after they failed to find any on Utah's

lonely Wah Wah Desert.

      "Americans are truly warm-hearted and wonderful people." Marcia Powers said. "We got to meet people

that we would never meet in our daily living at home. We got to touch it with our feet and hands and smell all

its scents and hear its wildlife. It' s an amazing country," she added.

1. Which of the following about couple's walk is TRUE?[ ]

A. The walk covered more than 13 states.

B. The walk lasted about half a year.

C. The walk didn't meet any desert.

D. The walk might end before October 27.

2. The underlined word "traversed" in the third paragraph means "_____."[ ]

A. enjoy

B. move across, through or over

C. overcome

D. look at

3. According to the text, we can infer that during the walk the couple _____.[ ]

A. were treated warm-heartedly by the local people

B. never stopped to have a rest

C. were ever caught in a heavy rain and became ill

D. felt the quicksand in Utah was very interesting

4. The couple went through many places except _____. [ ]

A. big rivers

B. desert

C. hills

D. fields

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