题目内容
9.
However,planting the sunflower seeds is a skilled job.Plant seeds no deeper than the full length of itself.Smaller sized sunflowers can be spaced a foot apart.Larger varieties will need to be spaced as far apart as three feet.This allows ripe plants enough space for the seed heads to ripen without knocking the ripe seeds off before gardeners have a chance to harvest them.
Most sunflower seeds,especially those with eatable seeds,are large enough to handle without the need for seed sorters.This is why sunflowers make an excellent choice for a children's garden as well.Gardeners will want to mix plenty of soil fertilizers into the ground as sunflowers tend to be heavy feeders.
Sunflowers can be slow starters and the tiny new plants don't seem to grow very rapidly.Gardeners should protect the new plants as they begin to grow.Once they get going,sunflowers are able to outgrow many weeds,making them easier to grow in the home vegetable garden than many other plants.
Most pests and diseases are not a bother to the sunflower,however,more than one gardener has said that their lovely looking plants were ravaged overnight by hungry squirrels,mice or birds.To preserve their harvest,gardeners can cover the ripening seed head with stockings or net cloth to help keep the destroyers off the seeds.
Planting sunflower seeds is easy and can help even the smallest gardener feel successful in their gardening attempts.
28.What is the passage mainly about?A.
A.How to plant sunflowers.B.Different kinds of sunflowers.
C.Ways to preserve sunflowers.D.Tips on making your garden bright.
29.Why should enough space be left between sunflowers?C.
A.To prevent birds from eating sunflower seeds.
B.To offer the sunflowers enough sunlight.
C.To protect the ripe seed heads before harvest.
D.To help the sunflowers grow stronger.
30.Why do children love to grow sunflowers in their garden?B.
A.They want to decorate their garden with sunflowers.
B.The seeds are easy to plant and unnecessary to sort.
C.Sunflowers don't need too much soil fertilizer.
D.Tiny new sunflowers can grow very fast.
31.Which of the following can replace the underlined word"ravaged"in Paragraph 5?A.
A.Destroyed.B.Covered.C.Surrounded.D.Removed.
分析 本文为科技类说明文,文章介绍了如何种植葵花的种子,包括埋种子的深度和种子与种子之间的距离;因为种子大不需要筛选,所以葵花适合孩子们种植,同时注意葵花需要施很多肥;最后还有保护好葵花籽,虽然葵花籽不容易受到害虫和疾病的侵袭,但是有可能会在一夜之间被小动物给毁了.
解答 28.答案是A.主旨大意题;文章第一段引出了话题--葵花;随后说明如何种植、如何施肥、如何保护种子等;由此推断本文主要介绍"如何种植葵花",故选A.
29.答案是C.细节理解题;由第二段的最后一句"This allows ripe plants enough space for the seed heads to ripen without knocking the ripe seeds off before gardeners have a chance to harvest them."可知,这将使得成熟的向日葵在收获之前不会把葵花籽给弄掉,也就是说在收获之前保护葵花穗(葵花的顶端),故C项正确.
30.答案是B.考查细节理解.根据第三段的第一句"Most sunflower seeds,especially those with eatable seeds,are large enough to handle without the need for seed sorters.This is why sunflowers make an excellent choice for a children's garden as well."可知葵花籽足够大,不用筛选就能种植,所以这是孩子们进行花园种植的极佳选择,故B项正确.
31.答案是A.考查词义猜测.根据下文的内容可知向日葵会在一夜之间遭到一些动物的破坏,要给向日葵穗套上丝袜或者网等加以保护,故A项"破坏"正确.
点评 阅读要整体理解文章,在做细节题时根据题干定位细节,在语境中正确理解原句,然后对照选项做出合理的判断;必要的时候要进行推理,透过句子表面看作者的真正意图.如果是主旨大意的判断要把握文章整体,避免以偏概全.
