Tree Hollow Mystery Expository Essay Read Answers A lot of big trees

20. What are the two explanatory methods used in the line drawing sentence in the second paragraph of the selected text? What does it do? (4 points).

21. Summarize the explanatory content of the selected paragraph. (2 points).

22. Can the two theories about the mystery of the hollowness of trees in the selected text be reversed? Why? (3 points).

23. Explain the reason why the punctuated word "maybe" in paragraph 7 of the selected text cannot be deleted. (3 points).

24. Select one of the following items that have an incorrect understanding of the content of the selected essay ( ) 3 points).

a.Old locust trees, large green trees or other common tree species in the north are more prone to hollowing.

b.For some ancient trees, protecting the heart is more valuable than protecting the bark.

c.Hollowing occurs in trees, and while it may be a means of self-preservation, it can also threaten the growth of large trees.

d.The mystery of the hollowness of trees is still expected to be updated with scientific results.

20. Give an example, column numbers (1 point). Accurately and concretely illustrates the high hollow heart rate (or hollow present) of trees in the Australian savanna.

The diameter of the hollow is also very long (1 point), which shows that the hollowing of trees in areas with abundant water and heat is also serious (1 point).

21. Explain the content of Zassen's nutrient recycling theory (adaptive strategy theory) (1 point) and the reasons why it is untenable (1 point).

22. No, you can't. Because the two theories are arranged in the order in which they were presented (1 point). These two theories grow from trees respectively.

The two perspectives of the environment and their own growth characteristics to explain the mystery of the hollowness of trees correspond to the relevant content of paragraph 3 (1 point), and the latter theory is a negation of the previous theory, so it cannot be reversed (1 point).

23. "Maybe" plays a role in modifying and limiting (1 point). It is explained that the phenomenon of tree hollowness is used to explain the reason why the outer periphery of the bark is more complex than the structure of the tree core.

It is a guess, not certain, and if it is removed, it becomes a positive statement, which does not match the original meaning (1 point). This word reflects the accuracy and rigor of the expository language, so it cannot be deleted (1 point).

2) Appreciation: Refers to the feeling that you feel beautiful and feel liked.

3.Because the old willow tree always humbly bows his head and does not look imposing, the young willow tree looks down on it. This shows that the young willow tree only pays attention to appearances and does not know where his true value lies.

4.Because the young Willow always turned his face up, he used the nutrients he absorbed to make up his appearance, so he became a hollow tree.

5.This parable illustrates two truths. First, we should not pay too much attention to the beauty of the appearance, and we should know that the fullness of the heart is the most important and valuable. The second is to accept the opinions of others with an open mind, otherwise there will be no good end.

On the side of the road in the forest, there are two trees, one tree is very old, and the other tree, it is very young, and the young tree often laughs at the old tree and laughs at the old tree for being ugly.

One day, the pear, date, apricot and peach trees invited the two trees next to the forest to the forest for the birthday of the apple tree, and the old and young trees were very happy.

The young tree said, "What are you happy about, and it doesn't matter to you." Lao Shu felt very aggrieved, and even tears were about to fall.

The pear, apricot, jujube, and peach trees next to it said to the old tree, "Let you go and celebrate the birthday of the apple tree, and if you go, the apple tree will be very happy." The old tree listened to what they said, and went happily with them.

The apple tree's birthday is over, and the old and young trees are home.

One afternoon, the owner cut down both the old and the young.

The owner was amazed, and the owner said, "I wanted to build a house with young trees, but now I can only build a house with old trees." Sold the young tree.

The young tree said very aggrievedly: "Why, is there no other choice?" "The master said:

I don't want to do that either, and now there's no other choice. ”

Children, do you know why young trees are hollow? Because young trees use nutrients on their appearance, young trees will be hollow.

Due to the incomplete conditions of the question stem and the lack of text, it is impossible to answer normally.