20 lessons Zhan Tianyou 2 questions after class 10

1.From what descriptions of the text, can we see that Zhan Tianyou was an outstanding patriotic engineer?

Zhan Tianyou was not afraid of difficulties or ridicule, so he resolutely accepted the task and immediately began to survey the line. To open the mountain, to build a bridge, to flatten the steep slope, to change the curvature to a small one, all have to be surveyed and carefully calculated. Zhan Tianyou often encouraged the staff, saying, "Our work must first be precise, and we must not be a little sloppy.

He personally led the students and workers, carrying the pole and the theodolite on his back, and fixed the point on the cliff to survey and map. Outside the plug, the wind is often howling, the yellow sand is full of sky, and there is a danger of falling into the deep valley if you are not careful. No matter how harsh the conditions were, Zhan Tianyou always insisted on working in the field.

During the day, he climbed mountains and mountains, surveyed routes, and at night, he drew and calculated under oil lamps. In order to find a suitable route, he often consulted local farmers. When encountering difficulties, he always thought that this was the first railway built by the Chinese themselves, and it must be repaired; Otherwise, it will not only provoke ridicule from foreigners, but also cause Chinese engineers to lose confidence.

2.Copy the 4th and 6th sentences of the sixth natural paragraph of the text "Zhan Tianyou", or the general meaning of these 3 sentences, you can do it!

3.Zhan Tianyou adopted the intermediate sinking method in the Badaling Tunnel, drilling a well from the middle, and starting construction at the same time, which shortened the construction period by half, which is an innovative move.

Positive phase seizure; Hold on to the takedown.

(1) The author lives in a foreign country, misses the motherland infinitely in his heart, constantly recalls the life of his homeland and his relatives in his homeland.

2) The author is in a small foreign city, and his heart is very sad; However, in the days when I am far away from home, I can often miss the life in my homeland, and constantly recall my relatives and friends in my homeland, and naturally have a little more comfort, some relief, and a little sweetness in my heart.

3) Because the author has been studying abroad for a long time, he does not have a deep memory of his mother's voice and appearance, so although the author wants to think hard about his mother's face, he has no choice but to be vague, and can only try his best to recall and keep recalling.

1;In many places in the text, Zhan Tianyou is shown to be an outstanding patriotic engineer. For example, in the face of obstruction and ridicule from some imperialist countries, Zhan Tianyou resolutely accepted the task; Creatively excavated two tunnels at Juyongguan and Badaling Designed a "human" herringbone line: the Beijing-Zhangjiakou Railway was completed two years ahead of schedule.

It gave a powerful counterattack to the imperialists who despised China, and so on, all of which embodied Zhan Tianyou's patriotic spirit and outstanding talent.

In the area of Badaling and Qinglong Bridge, the mountains are overlapped, the steep wall is overhanging, and four tunnels should be opened, the longest of which is more than 1,000 meters. After accurate measurement and calculation, Zhan Tianyou decided to adopt the sectional construction method: from the north and south ends of the mountain at the same time, and in the middle of the mountain to open a large well, in the well and then to the north and south ends of the drill.

This not only ensures the quality of construction, but also accelerates the progress of the project.

2.In order to overcome the difficulties of driving on steep slopes and ensure the safe climb of the train to Badaling, Zhan Tianyou was ingenious and creatively used the principle of "switchback line" to design a herringbone line in the Qinglong Bridge section with steep slopes, thereby reducing the excavation of the tunnel and reducing the slope. The train drove here, with two high-horsepower locomotives Chunjing, pulling and pushing, to ensure that the train was fully uphill.

2.In order to overcome the difficulties of driving on steep slopes and ensure the safe climb of the train to Badaling, Zhan Tianyou was ingenious and creatively used the principle of "switchback line" to design a herringbone line in the Qinglong Bridge section with steep slopes, thereby reducing the excavation of the tunnel and reducing the slope. The train drove here, with two high-horsepower locomotives, pulling and pushing, to ensure the safe uphill of the train.

The teacher told us about it.