"Interesting Seed Travel" reading material
Interesting Seed Travel
①A plant has fewer than a few dozen seeds and more than a few hundred thousand seeds. If they all just stay where they are, crowded into a pile, it is hard to imagine how they can live on; if there are natural disasters, such as drought, floods, fires, etc., the concentration of a piece of them is even more at risk of extinction. Therefore, the seeds must be migrated in various ways. This is the result of long-term natural selection.
②There are many different kinds of plants in nature, and seeds travel in different ways.
3, such as soybeans, mung beans, rape, sesame and other plant seeds, there is a "catapult" ability, fruit ripening seed pods will be suddenly twisted, exploded, the seed catapulted to dozens of centimeters or even a few meters away. According to the information available now, the plant world in the ejection "champion", may be a raw roll in the Americas, the range of up to 14 meters away.
4 in northern Africa and southern Europe, there is an interesting plant called the spray melon, its fruit is ripe, the pulp that hides the seeds, like the air in the balloon, the peel produces strong pressure, as long as the slightest touch, the mucus of the fruit and the seeds together with the eruption of the shot can be as far away as 6 meters, so the local people call it "iron cannon melon ".
5 But the distance these seeds travel is only low in the whole of nature. The seeds of many plants can travel thousands of meters or tens of kilometers in various unique ways, and some of them can even "roam around the world"!
6In the mid-19th century, a double-drawn sailing ship sailing in the Atlantic Ocean encountered a big storm, and the ship drifted in the wind and waves, and finally came to a calm bay. The sailors went ashore and dug up sand and gravel to ballast the ship, and accidentally found a black asphalt orb, but it felt very light when they held it in their hands. Opened a look, it turned out to be a coconut shell, which hides a parchment, written in ancient languages. Later, identified by experts, this is the year Columbus wrote a letter ...... So how did this miracle happen?
⑦ Originally, people have long found that the coconut fruit shell is hard and impermeable, the middle is fluffy fiber layer, full of air, very light, very suitable for drifting with the waves in the sea water, for long-distance travel. Once washed up on the beach by the waves, it can germinate and grow. Because coconuts spread their offspring in this way, almost all the coconut trees we see, except for those cultivated, grow along the beach.
⑧ There are many other seeds that travel in water. For example, the lotus flower, its fruit rosette like a small boat, floating on the water, floating around, the seeds to far away. When the seed rots, the seed sinks to the bottom of the water. The next spring, a new lotus plant grows up.
9 And the water lily, its spongy berry light structure is very strange, the berry contains a lot of seeds, each seed is wrapped with a sac full of air, like a life preserver, in the long-distance drift, the sac of air slowly disappeared, the seeds sank to the bottom of the water.
⑩The interesting journey of the seed is a marvelous demonstration of the greatness and wonder of life.
The Interesting Travels of Seeds
1. The meaning of "travel" in the title "The Interesting Travels of Seeds" is ____________________.
2. The reasons seeds have to migrate are ________ and _________. The ****similarity in the way plants like soybeans, green beans, rape, sesame seeds and squash spread their seeds is __________________________________________.
3. The role played by paragraph 5 in the structure of the article is ________________.
4. Paragraph ⑥ of the article gives the example of Columbus sending a letter, and the advantage of writing this is ______________________.
5.The following statement is in line with the meaning of the article
A.Seeds have to migrate in various ways as a result of nature and human choices.
B.The distance traveled by squirt gourd seeds in northern Africa and southern Europe is low in nature.
C.All the coconut trees we see, except for the artificial ones, grow along the beaches.
D. The interesting travel of the seed is an amazing rendition of the greatness of mankind and the wonder of the seed.
The Interesting Travels of Seeds Reading Answers
1. spread
2. can't all survive if they stay where they are
easy to go extinct in case of disaster
spread the seeds by jetting them out through the changes in the fruit itself to generate power
3. the transitional role of carrying on the previous and the next
4. following the content of paragraph ⑤. The strange way of spreading the coconut seeds. The title of the article is close to the title of the article to increase the interest of the article, so that the reader is easier to understand.
5.