问题 选择题

下列说法不正确的是(  )

A.N2和H2在一定条件下合成氨,可以实现固氮

B.用氨水吸收CO2,可以捕捉碳,降低温室效应

C.对煤炭、石油脱硫,可以减少酸雨

D.PM2.5是指大气中直径接近2.5微米的颗粒物,入肺影响健康。它在空气中为气溶胶

答案

答案:D

题目分析:A将游离态的氮转化为化合态的的氮的方法叫氮的固定,正确。B二者发生反应,消耗了CO2,降低了它的浓度,故可降低温室效应,正确。C对煤炭、石油脱硫,可以减少在使用过程中产生SO2,因而能减少酸雨,正确。DPM2.5是指大气中直径接近2.5纳米的颗粒物,错误。

选择题
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Board, But Not Boring

Roll the Dice and Take a Chance on Something New…

Are you vacationed-out, tired of video-gaming, waterlogged by too many trips to the pool and ready to scream if you see one more “SpongeBob” rerun?

In other words, are you bored with summer?

We’ve got a suggestion: Kill that boredom with some great board boredom games. We went to game expert Lizzy Palmer of Barston’s Child’s Play in the District and ask for suggestions. All the games you see on this page are a ton of fun, she said, and there are sure to be at least one or two that you don’t already have.

Maptangle

Borderline Games

Ages 7 and older, 4 to 6 players, $24.95

This clever take on the classic game of Twister challenges your gymnastic and geographic skills at the same time. A huge floor map of the world serves as the game board. There are lots of geographic elements: countries, oceans,  rivers, deserts, even man-made landmarks. A deck of cards tells you where to put one foot, then the other. The round is over when someone falls.

Jungle Speed

Ages 7 and older, 2 to 8

players, $25.99

This is a fast-paced shape-recognition game. A wooden totem (图腾柱) sits in the middle. Players flip (翻) over cards one at a time. When your card matches another, be the first to grab the totem so that you can give your card to the loser. But be careful: Some cards look the same but aren’t!

Enchanted Forest

Ravensburger Ages 6 and older, 2 to 6 players,

$24.99

A classic memory game. Take a winding path through the forest and check under the trees for

fairy-tale treasure. Remember what you saw so that when you need a particular treasure you can

go back to that tree to get it. Cool rule: You can split your dice (骰子) roll—for example, move five spaces in one direction and two in the other to land at the right tree.

Go fish for Wildlife Birdcage Press All ages, $9.95

Birdcage has several decks (副) of cards that are more like trading cards. You fish for sea creatures,  reptiles, wild animals. Each deck has instructions for several card games, and each card has great photos and fun facts. Great for a trip.

HedBanz Funrise Ages 6 and older, 2 to 6

players, $13.99

Put on a headband and slip in a card that shows an animal or thing. Everyone else can see it but you.Ask questions until you guess what it is—but do it before time runs out!

68. What’s the purpose of writing the article?  

A. To advertise several board games to attract potential consumers.

B. To introduce several board games for readers to pass the summer.

C. To try to persuade readers to give up video games and choose board games.

D. To make some suggestions on how to spend the long summer.

69. Suppose Doris, a mother with a six-year old boy, wants to buy some board games for her child. How many kinds of board games can she choose?

A. 2                     B. 3                              C. 4                              D. 5

70. Which of the following games will be the best choice for Mr Smith who wants to find an indoor game that can benefit both his daughter’s mind as well as her body?

A. Go Fish for Wildlife                                           B. Jungle Speed

C. Maptangle Borderline Games                       D. Hedbanz

71. Which of the following can match the games with their benefits to players?

(1) Enchanted Forest                                    a. to practice your quick response

(2) Maptangle Borderline Games    b. to practice your memory    

(3) Jungle Speed                                            c. to practice your geographic knowledge

(4) Go fish for Wildlife                         d. to increase the knowledge about animals

A. bacd                                 B. bcad                       C. cbad                       D. cdab