题干

【自然灾害与防治】根据材料,完成下列问题。

低温冻害主要是因为强冷空气入侵造成的连续多日气温下降,使作物因环境温度过低而受到损伤以致减产的农业气象灾害。下图为我国部分地区平均每年冻害出现的次数等值线分布图。分析A处冻害出现频次较多的原因,并提出防御措施。

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答案(点此获取答案解析)

原因:A处位于长江中下游平原,附近无山脉阻挡,冷空气易入侵;冻害发生在冬半年(主要在春、秋两季),此时该地区农业生产活动较多;农作物耐寒能力较差;人们防冻意识薄弱。(每点2分,任答3点得6分)

措施:及时发布寒潮预警;地膜覆盖;人工烟熏等。

同类题3

任务型阅读

    Summer is the perfect time to gather with friends and share good food. You may want to set a pretty table and create a welcoming atmosphere, but without spending weeks preparing for the big night. Follow these steps for a stylish summer party.

    Choose a color plan

    The season itself can inspire the color plan, such as nature-inspired hues like ocean blues and grassy greens. One item may also inspire the rest of the party, such as these napkins____

    Use cotton for table cloth

    Instead of searching for just the right table cloth, head to your local cotton store where the options are endless____ No problem! Use pinking shears(花齿剪)to cut your table cloth and napkins to size.

    Bring the inside out

    Summer design tips often include the saying, “Bring the Outside In.” Well, for outdoor summer entertaining, bring the inside out! Get outside for your summer gathering____Create a welcoming environment by brining décor items inside your home out to your event.

    ____

    No summer party is complete without greenery. Choosing an all-green for your centerpieces provides the casual feel of summer. Grocery store Eucalyptus sprigs create the perfect summer centerpiece, but something form your yrd works just as well!

    Create simple and stylish place cards

    Place cards make you guests feel welcome, but you do not want to spend all day making complex name labels! Instead, choose a thick paper that fits your color plan. Cut a 4-inch square and fold it in half____ .

Now the table is set, the lounge is ready, and all that's left for you to do is enjoy your guests!

A. Does it look beautiful after designing

B. Use green plants instead of flowers

C. Don't have time or know how to sew

D. Write each person's name in gold paint pen

E. Go to a nearby store to buy some green plants

F. Once you make a decision, begin gathering your items

G. There is something magical about entertaining out in nature