What is the best topic for the 5th grade expository essay selection?

You know, it can be human cells, living things, or people don't know about it, but you know it.

Orange orange is colorful, sweet and sour, and is a delicious fruit that is common in autumn and winter.

There are so many benefits of tangerine! Orange has the medicinal effects of moistening the lungs, relieving cough, dissolving phlegm, strengthening the spleen, smoothing qi and quenching thirst, and is a superior fruit eaten by men, women and children. The whole body of orange is a treasure: not only the pulp has high medicinal value, but its skin, core, vein, and leaves are all "authentic medicinal materials".

Tangerines are rich in sugars, vitamins, malic acid, citric acid, proteins, fats, dietary fiber, and a variety of minerals.

Oranges are rich in nutrients, and per 100 grams of orange pulp contains grams of protein, grams of fat, grams of carbohydrates, grams of crude fiber, 56 mg of calcium, 15 mg of phosphorus, milligrams of iron, milligrams of carotene, milligrams of vitamins, and vitamin B2

mg, niacin mg, vitamin C

34 mg and nutrients such as hesperidin, citric acid, malic acid, and citrate.

Things, though.

There are two sides, oranges also contain a lot of carotene, if you eat too much at one time or have taken too much in a row recently, the concentration of carotene in the blood is too high will lead to **yellowing.

Orange peel can be made into many delicious dishes! Orange peel porridge: Aromatic and appetizing, it is full of chest and abdomen.

Cough with a lot of phlegm. can play the role of diet **. Orange peel soup: The soup is delicious and has a faint orange flavor, yes.

It makes people eat without a greasy feeling. Orange peel tea: The taste is fragrant, and it has the effect of appetizing, aerating and refreshing.

Tangerine peel wine: Tangerine wine has the effect of clearing the lungs and dissolving phlegm. If you soak for a little longer, the wine will taste better.

Orange peel cabbage: It tastes sweet and refreshing, and has the effect of relieving hangover. Orange peel:

It tastes refreshing and sweet. Spiced orange peel: It has a long taste and has a medicinal effect.

Find things around you to write, such as fruits, from the inside out, you can write. Check it out for yourself.

The Doraemon alarm clock I am most familiar with.

I have a beloved Doraemon little alarm clock, which was a birthday present from my mom on my ninth birthday. Doraemon on the plate has a big head, two round eyes like black jewels, a small red nose, a semicircular mouth under the nose, the beard on both sides of the mouth is black, it looks even more powerful, and a small silver bell hangs around its neck. It always counts the time minute by minute, making a ticking sound, like a wonderful ** ringing and ringing in my little room.

Every morning at half past six, it sings loudly: It's time to get up, little lazy worm! Awakening me from my sweet sleep, I reached out from the warm bed and touched its head, and said to it:

I see, baby. It would stop singing and continue counting the hours minute by minute.

Every afternoon after school, when I was doing my homework, it was patiently accompanying me, as if to say, "You must be serious about your homework!" Gradually, I stopped hearing it ticking and concentrated on my homework.

When I finished my homework, it came alive again, "Tick, tick."

My beloved Doraemon little alarm clock accompanies me to grow up happily every day.

These should be thought of by themselves, as long as you master the four major tricks:

First, grasp the characteristics to explain.

2. Arrange the order of explanation as needed.

3. Appropriate use of explanatory methods.

Fourth, pay attention to reflect the characteristics of the language (accurate, concise, popular, vivid).

Tomatoes are also called tomatoes. Because of its bright color, fruity juice, sweet and sour, nutritious, and unique taste, it has won everyone's love.

I also love tomatoes and ask my mom to bring me a tomato or two almost every day when she buys groceries. I think there are five reasons why tomatoes are so popular. First, the color of the tomato is very bright, the surface is red, the red is so bright, so cute, so delicious, you are sure to be hungry as soon as you see it.

The second is its delicious taste, whether it is eaten raw or cooked, it always tastes sweet and sour, which makes people have a great appetite. Thirdly, it is its light fragrance, if you put your nose close to it, you will smell a unique fragrance of tomatoes, which seems to be mixed with sweet and sour taste. Fourth, it is the shape of the tomato, speaking of the shape of the tomato can be described as strange, some like a red pumpkin, some like a red baby face, and some can't say what it looks like.

Secondly, the nutritional value of tomatoes is also a lot, and tomatoes contain more calcium, phosphorus, iron, carotene, vitamins, nicotinic acid and other nutrients than many vegetables. Traditional Chinese medicine believes that tomato is sweet and sour, slightly cold, has the effect of strengthening the spleen and appetizing, quenching thirst, etc., and can be used medicinally for loss of appetite, fever, heatstroke, thirst and other symptoms. From this point of view, tomatoes have a lot of effects!

Tomatoes are both a delicious fruit and a nutritious vegetable!

Ideas: First introduce the appearance of the refrigerator as a whole, introduce the details layer by layer, and introduce its role in detail. Then select some of the characteristics of the refrigerator, talk about the benefits of the refrigerator, and the convenience it brings to the home.

Finally, praise the refrigerator to reflect the importance of the refrigerator.

Text: In one corner of my house, there is a big refrigerator.

My refrigerator is milk-colored, but on the four sides of the refrigerator door is silver-gray, from a distance, it looks like a piece of snow, it is about 1 meter 50 centimeters high, about 50 centimeters wide, it is one body and two doors, open the upper door, and you will come to the fresh-keeping room. The fresh-keeping room has three floors, the upper one and two floors are higher, which can put some vegetables, fruits, leftovers and other things, and the third floor below is a movable drawer, which can only hold a small capacity, which can only hold a bag of things bought from the supermarket.

The following is the freezer, which is different from the fresh-keeping room, which is full of movable drawers that can store some popsicles, frozen fish, meat, ice water, etc. There is also a "mystery" on the back of the fresh-keeping room! There are recesses for eggs, and there are also small compartments for drinks.

Since this refrigerator came to our house, I can take any vegetables, fruits, and milk directly from the refrigerator without going to the small supermarket outside to buy it, and sometimes I feel that this big refrigerator is like a cornucopia, and I can take out endless fruits from it. As soon as summer arrived, I took a popsicle out of the fridge and ate it.

It can save my mother from going out to buy groceries often, it can keep the food fresh, and it can make me eat cold popsicles ...... in the hot summerIt's all thanks to the refrigerator! If I didn't have a refrigerator, I wouldn't be able to eat a cold popsicle......

My refrigerator is very important to our family, and what would happen if we didn't have one!

The puppy is a cute little animal, well-behaved, humane, and very likable. The dog's bark was loud, not big, not small, but full of energy. They are rich in color and have sensitive organs. Dogs are flexible by nature, and if you look closely, you will find it very interesting.

The color of dog hair is mainly black, yellow, and white. The black one guards the door of the house and is extremely fierce. Huang is wandering, free, and carefree. The white ones are docile and lovely, pure and lively, obedient to their words, and suitable for those who live in the building.

Dogs have sensitive organs. Its ears are as sensitive as a receiver, and no matter where you call it within a 100-meter radius, it will run in your direction. The dog's sense of smell is also remarkable, and it can find you even if you drop it far from home.

There are countless examples of dogs looking for their owners. There is a couple in the United States who once lost their most beloved sheepdog, but half a year later, the lost sheepdog appeared in front of the owner with his sensitive sense of smell and four amazing calves.

Sleep is an essential form of rest to restore energy and maintain health. Dogs need 14 to 15 hours of sleep every day, and instead of sleeping enough at once, they divide into sections. Dogs have about a quarter of the intelligence of a human, and if they are well trained, they will be excellent.

After listening to my introduction, do you think dogs are very cute and amazing little animals? Now that we have become its masters, we should do our part to take care of them.

79, a fish body returned to Hu Ou Champions League, a few opened a few and cried, and it looked good.

Pears have been a favorite fruit of the masses since ancient times, and they are rich in nutrients. It is said that pears have 80-90% water, and there are 6-component of rock sugar, 1%-3% glucose and 2-3% sucrose. In the edible part of 100 grams, there are about 5-9 milligrams of calcium and milligrams of iron, and even a certain amount of protein, fat, carotene, vitamin B1, vitamin C and vitamin B2 and malic acid.

The pear flavor is sweet and slightly acidic, cold and non-toxic, and has the function of "moistening the lungs and cooling the heart, reducing inflammation and reducing fire".

There are more than 20 varieties of pears, as long as: crisp pear, Ya pear, snow pear, perfume pear, avocado, etc.

I'm also a student, and I'm also in the 5th grade, so it's impossible to give you all the essays I wrote, you should think for yourself^

The pen is an indispensable part of our life Teachers work, students do homework, etc., we have to use the pen all the time, but there are still many inconveniences in the pen in real life, for example, when writing a fountain pen, it is often inked, and it is still very cold to write a fountain pen in winter, so I want to invent a magic pen

The pen of the future is a cylindrical shape, and the function of the pen can be dora The body of the pen of the future is equipped with an automatic controller and an ink reservoir When your ink is finished, the ink will be automatically added to the nib of the pen There is a miniature air conditioner in the middle of this pen As long as you press the green button on the pen, it will be very cool You will not feel hot when writing in the summer When you write a pen in winter, it will be very cold, then you press the red button, and immediately there will be heat coming out of the pen It is very comfortable when writing There are four sensor lights at the upper end of the nib It will illuminate normally when it is twenty centimeters away from the book, and if it is too close to the book, it will emit a dazzling light, so that you can't see the words you write clearly With the sensor light, you don't have to worry about your eyes being myopic In addition, there is a typo discriminator in the pen, if you write a wrong word, it will make a "beep" sound to remind you, so that you will not write a typo There is a small *** installed on the top of the pen to relax by listening to songs when you are writing homework.

This pen can not only allow us not to make typos, but also improve our interest in learning, allowing us to learn in a relaxed and happy way.

You can take a look at "The Whale" in the first volume of the fifth grade

Apple Expository Text.

The apple is a familiar fruit, it's chubby, and it has a bountiful red color all over its body. Holding it in your hand it will gently cling to your palm, and when you choose it from thousands of apple trees, it is a kind of happiness for it It can bring people a sweet taste, and this is its greatest happiness, apple, which is a fruit that grows in the north. Idioms"Fruitful"That's what it is.

As you walk through an apple grove, the enticing smell of the apple forest will enter your nostrils and even your whole body with a breeze, and the long-lost feeling of comfort will burst out of your long-buried nerves. What could be easier than that? Let me introduce you to Apple!

The flowering apple tree is a deciduous tree that can reach a height of 15 meters, and is generally 35 meters tall under cultivation conditions. The trunk is grayish-brown, the old bark has irregular longitudinal lobes or flaky peeling, and the twigs are smooth. The leaf order is single-leafed alternate, elliptical to ovate, with serrated margins.

Umbel inflorescence, petals white, pink when bracting, stamens twenty, columella five. The fruit is a kernel and varies in color and size depending on the variety.

Apples love light and prefer slightly acidic to neutral soils. It is most suitable for sandy soils with deep soils, rich in organic matter, and well-ventilated and drained core soils. There are more than seven thousand five hundred known varieties.

Good breeds: "Red Star Series", "Red Fuji", "Jonathan" and so on. In addition to fresh varieties, there are also cooked apples.

Because the fruit acid of apples has the effect of retaining moisture, it is suitable for baking. Apples contain a lot of pectin, a soluble fiber that lowers cholesterol and bad cholesterol, and can also control conditions such as asthma and chronic obstructive pneumonia.

Apples have a special role in enhancing children's memory. Apples not only contain a variety of vitamins, lipids, minerals, sugars and other nutrients necessary for the brain, but also contain fine fiber, which is beneficial for children's growth and development, and zinc, which can enhance children's memory. Zinc is an essential element for the formation of nucleic acids and proteins that are closely related to memory, and zinc deficiency can lead to poor development of the hippocampus at the edge of the cerebral cortex.

Once zinc in food is reduced, a child's memory and learning ability can be severely impaired, and this damage can last into adulthood. In order for a child's memory to be good, children should be asked to eat more apples.