20200320打卡D737万思乐学Vlearn小西妈双语工程1801期136号Damon

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【春分第一候：元鸟至】元鸟，又称玄鸟，即燕子。燕子是春分来，秋分去的候鸟。春分日后，燕子开始从南方飞回来。

【春分二候，雷乃发声】雷是春天阳气生发的声音，阳气在奋力冲破阴气的阻扰，隆隆有声。立春节气雨水也增多，这个时候天气转暖，空气也比较潮湿，于是有二候“雷乃发声”。

【春分第三候，始电】开始见到闪电。 那是因为春分节气以后降雨量明显增多了，并且还会伴随着雷声和闪电。这时人们经常可以看见从云间凌空劈下的闪电，所以在野外干活还是要注意安全。

A satellite view of Earth on the March equinox.(NASA)

• Vernal equinox day.

Spring arrives Friday with the vernal equinox, according to those who base their seasons on the Earth’s position relative to the sun. Here are five more things to know:

1. What is the vernal equinox?

Chunfen（春分）， which literally / 'lɪtərəli/按照原义 means Spring Equinox or Vernal Equinox, falls on the day when the sun is exactly at the celestial / sɪ'lestiəl/天球 latitude / 'lætɪtjuːd/纬度of zero degrees.

During the vernal equinox, the sun shines directly on the equator, and the northern and southern hemispheres get exactly the same amount of rays. Night and day are almost equal in length.

The spring equinox is one of the four solar festival of the year.An equinox occurs twice a year, around 20 March and 22 September.

2. What does equinox mean?

The word ‘equinox’ simply means of equal length and refers to the twelve hours of daylight and twelve hours of darkness at this point in the year.The word itself has several related definitions. Day and night are equal, poised / pɔɪzd/平衡的 and balanced. The oldest meaning is the day when day and night are of approximately [əˈprɒksɪmətli] equal duration[djuˈreɪʃn]期间 .

3. Why is it important?

For ancient societies, the vernal and autumnal equinoxes marked when winter turned to spring and when summer turned to fall, respectively, and helped people track time-sensitive things, such as when to plant crops.

4. Didn’t spring start already?

It might feel as if it has. The weather has been very warm recently.

5. Forecasters prefer March 1

Meteorologists like to start spring on the first day of March because they prefer a calendar in which the seasons start on the same days every year. It helps with record keeping, among other reasons. But the Earth, sun and stars don’t quite conform /kənˈfɔːm/ to 符合the Gregorian /ɡrɪˈɡɔːrɪən/ calendar — so the vernal equinox doesn’t fall on the same day every year.

Five Things About Spring Equniox

1. It' s the first equinox of the year
2. It's also called Autumnal / ɔːˈtʌmn ə l/Equinox in the Southern Hemisphere.
3. It happens at a specific time everywhere in the world
4. The date of the equinox can vary.
5. It's celebrated around the world

In China, children decorate eggs and mark the day itself by trying to balance them.

Legend has it that the solar alignment / əˈlaɪnmənt/排成直线 makes the equinox one of the only moments in the year when an egg can stand on its head.

Spring arrives on Thursday with the vernal equinox in the Northern Hemisphere, and the autumnal equinox in the Southern Hemisphere. Spring means the coming months will feature stronger sunlight. After Thursday, the sun’s arc 圆弧across the sky will continue to climb higher until it peaks /piːk/ with the summer solstice on June 20.When something peaks, it reaches its highest value or its highest level. 达到峰值

The "Vernal Equinox" and "Autumn Equinox" are when the days and nights are equal length, while the "Summer Solstice" sees the longest days and the shortest nights in the Northern Hemisphere半球. It is the contrary / 'kɒntrəri/相反的 on the day of the "Winter Solstice".

The apparent path of the sun as observed from the Earth’s surface in the Northern Hemisphere.

Will more direct sunlight and the warmer temperatures of spring and summer help to clear up the new coronavirus that’s responsible for the COVID-19 pandemic? /pænˈdɛmɪk/ 流行病

We hope so.It is true that in the springtime, flu viruses and other types of coronaviruses that cause common colds often do fade.But the truth is, because it is a completely new virus, no one really knows.

we’ll just have to wait and see. we don’t know enough about this virus to understand how it’s going to behave over time.

The World Health Organization noted that the virus that causes COVID-19 has infected people on every continent except Antarctica. It can be transmitted in all areas of the globe, including those with hot and humid weather.

The new coronavirus has been spreading in the Southern Hemisphere, where summer will turn to autumn on Thursday. Australia has reported more than 500 cases and five deaths during its summer season, while Brazil has reported more than 300 cases and one death.

It’s a myth that another coronavirus that caused the severe acute /əˈkjuːt/ 急性的 respiratory /ˈrɛspərətərɪ/ syndrome, /ˈsɪndrəʊm/ 呼吸症状or SARS, outbreak in 2003 went away on its own as the weather got warmer, 

“SARS did not die of natural causes,” Lipsitch wrote recently. “It was killed by extremely intense /ɪnˈtɛns/ 极度的 public health interventions, /ˌɪntəˈvɛnʃən/ 干涉” such as isolating 孤立/隔离 infected people and quarantining/ˈkwɒrənˌtiːn/ 隔离 those who came in contact with them.

It was also easier to identify the SARS patients who were most infectious because they were ill in a very distinctive /dɪˈstɪŋktɪv/ 独特的 way, he wrote. By contrast,相反 the new coronavirus is spread by carriers who are still visibly healthy; in this case, people well enough to stay out of the hospital are playing a key role in the coronavirus’ explosive spread.

Although we don’t know what effect it will have on the virus, we can count on the fact that winter will give way to spring, which will arrive a day early this year because of leap day.

Warmer spring and summer days are thought to affect influenza in several ways:

• People who have spent the winter shut up indoors in close quarters with 与...住一起others finally go outside, where they’re less likely to breathe air shared with someone who has been infected.

• Sunlight promotes the body’s synthesis 合成of vitamin D. With longer days and more sunlight, people will have increased levels of this, which strengthens their immune systems.

• Warmer air can hold more moisture. That’s not good for viruses such as influenza that prefer colder, drier conditions in order to spread. Spring days are likely to be warmer and perhaps more humid.

Whether these factors — or others — will affect the course of the COVID-19 pandemic remains to be seen.

In the meantime, the best advice with regard to 关于COVID-19, as always, is to observe the public health measures recommended by local authorities /ɔːˈθɒrɪtɪ/当局/官方机构 and the Centers for Disease Control and Prevention.与此同时，关于COVID-19的最佳建议，一如既往，是遵守地方当局和疾病控制和预防中心所建议的公共卫生措施。

• To Try Plant Your Own red beans

Because the plants germinate 发芽 and sprout quickly, while requiring very little care.（If a seed germinates or if it is germinated, it starts to grow. 使发芽; 发芽Some seed varieties germinate fast, so check every day or so.有一些品种的种子发芽快，所以差不多每天都要察看一下。）

Bean seeds are dicots ['daɪkɒt] , 双子叶 which means that each of the seeds is split into two sections and attached by a small thin area.

Let's follow the guidelines to produce bean plants.豆类植物

1. Grab a seed that will germinated quickly，for example pole bean,豇豆 pea or grass.Here is some red bean seeds.It grows very fast.It grows so fast that it will become a bean plant in just a few days.
2. Fill the little flower pot with soil.Make sure not to pack the soil down into the pots.Just make the soil soft.I used those little pots to plant my succulent /ˈsʌkjʊlənt/ 多肉 plants.But they died out.Look at the bottom of the pots,each of them has a hole.Those to drain out the excess water .Let's lable the pots with numbers1-12.
3. Create a hole in the soil at the center of the pot by pressing one finger into the soil.
4. Place the bean in the bottom of the hole. Fill in the hole with soil and lightly compress the soil so that it is no longer loose. Do not compress the soil too much, or the roots and other growing parts will be hindered (形容词读作ˈhaɪndə)as they try to grow through the soil.If something hinders your movement, it makes it difficult for you to move forward or move around. 牵制
5. Water the seed gently by sprinkling enough water on the soil to moisten /ˈmɔɪsən/ it.Water seed daily as it starts to grow. Beans grow best in soil that is moist, rather than wet.
6. Place the pot in a location that will receive sunlight for at least six to eight hours a day and water as needed for the soil to stay moist.Let's put them on the sill.
7. Now,be patient,our seeds might began to grow in tree days or a little longer.
8. Watch for a small sprout that emerges from the bottom of the bean seed. This is the main root of the bean and is called the radicle./ˈrædɪkəl/ 胚根
9. During germination, the bean seed has four distinct stages of development.If the seed is planted in soil, not all of the stages are visible since some occur underground.However, if seeds are started in water, or in a wet paper towel, all four stages of germination are easy to observe.
10. Wait until the second stage of growth when the main sprout emerges from the top of the plant. This sprout is called the hypocotyl /ˌhaɪpəˈkɒtɪl/ 下胚轴 and is the first sign of growth for plants planted in the soil. The hypocotyl emerges as a looped green stem that bends toward the ground. It may appear as if the bean seed is located at the top of the sprout but these are actually called the cotyledons. /ˌkɒtɪˈliːdən/ 子叶
11. Watch as the bean seed goes through the third stage of growth where the stem straightens up. The two cotyledons break apart and turn toward the sun to reveal the first two plant leaves.
12. The end of the bean plant's life cycle is flowering.Flowers are the reproductive /ˌriːprəˈdʌktɪv/ 繁殖的 portion 部分of the plant, and plants begin reproducing as soon as they are able to do so.
13. The time is takes a bean plant to flower varies according to the types of bean, but generally within six to eight weeks of germination you'll begin to see flowers on the bean plant.一个豆科植物开花的时间根据豆科植物的种类不同而有所不同，但一般来说，在发芽的6到8周内，你就会开始在豆科植物上看到花。

Think about that if the dried beans from a grocery store can be used?

I guess if we steep浸泡 them at first,they must can be used ,but if we want to plant them right now,these may not germinate properly because they have been processed to be eaten, rather than to be grown.

顺便把西梅种子丢进去了

• 称重实验

1. Weigh the long beans with your electronic scale.
2. Write down the weight on a piece of paper.
3. Then you can chose chop or shred the long bean. If you shred something such as food or paper, you cut it or tear it into very small, narrow pieces. 切碎; 撕碎
4. Then weigh them once again.
5. Guess what happens to the weight before that.

• Make mung bean popsicles

失误了，用了铁锅，颜色不好看

Ingredients:

1. Chinese mung beans
2. cold water
3. sugar or Chinese rock sugar chunks
4. condensed 浓缩milk, 炼奶to taste if desired
5. shaved ice刨冰

Directions:

1. Soak mung beans in a medium saucepan for a few hours or up to overnight
2. Drain beans and add fresh water and rock sugar or white sugar
3. Bring beans to a boil and reduce to medium heat.Simmer, stirring occasionally, for about 30 minutes or until the beans are soft. Be careful not to boil at too high a temperature or the beans will fall apart quickly and turn into an unappealing 不好看的 /ˌʌnəˈpiːlɪŋ/ olive drab 黄褐色 mush.
4. Let cool to room temperature, then pour into popsicle molds.
5. Chill for several hours, or until firm.
6. Loosen the popsicles up ,then you can enjoy them.Quickly enjoy it,or it will thaw at room temperature .

• germinated seeds

Warmth,air and moisture start the process of seed germination.

Look at our germinated seed. The seed detects the pull of gravity and responds by sending it's root down (with gravity) and its shoot up.(against gravity)

• drain mung bean sprouts　　

Damon got the hang of rinsing and draining the beans through the breathable cheesecloth . Return them to their dark storage spot after each rinse session.The beans should continue to grow in size and sprout thin white tails.

• 磁力片

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