The older siblings from high school come in, and the older siblings come into the classroom

New concepts are preferred. The history of 30 years cannot be summed up in a few words.

After learning the two volumes of the new concept, you can take the college entrance examination and other exams (this is what the encyclopedia says. I believe it too! ）

It is not only the content of the first year of high school, it can be said that it covers all the grammar knowledge of high school.

Listening is also a pure British pronunciation, which is much better than ordinary listening materials.

Specifically, you look at the encyclopedia - New Concept English.

I've been memorizing new concepts, although it hasn't worked yet (it's that I haven't memorized it well...).

Listen to Li Yang's crazy English. Among them, there are slow, normal, and fast. Listen more, after a long time, you will naturally listen to your ears.

Suggestion: Listen to the slow ones first, then listen to the fast ones (practice crazy, it doesn't matter if you don't understand, just get used to it), and finally listen to the normal ones to see if there is anything to gain.

Be sure to listen more, and the more you listen, the more familiar you will be.

You can listen to more English songs, or English radio programs, and hum along with them if you can.

Pay more attention to the teacher's English during class, and don't always wait until she speaks Chinese to react.

I have to say more myself, and I can practice by myself when I am usually idle and bored.

My hearing has been bad at the beginning, and I have no confidence at all, and I want to give up and don't want to listen to it before I listen, so I borrowed my classmate's P3 to listen, and the effect is not bad, I recommend that you don't buy tapes that are inconvenient and don't have time. I also use P3 to upload high school texts on the Internet, put the text listening and songs in the same folder, press random**, listen to the songs while listening, and it will not be boring.

You don't have to buy it, I have the same question as you, I didn't practice in the end, because the listening in the college entrance examination is very, very easy.

If you want to practice, just buy the college entrance examination practice, it works, I took the college entrance examination 642 this year, Beijing's, Peking University is one point behind, very depressed, but my hearing is full, I hope you can be better than me.

Hey, let's use anonymity, shame, I don't dare to show my face now.

Watch a little more English** and try not to read subtitles.

No matter what, as long as you listen to it, you will feel it.

With the visit to the primary school, the step-by-step advancement of the theme of "I want to go to primary school", and the progress of primary school registration, the children are becoming more and more curious about the life of primary school students, and they are becoming more and more yearning for primary school. After visiting the primary school, the children had different and targeted questions about the primary school. For example:

What are the courses when you enter primary school? How do I choose a course? Do I need to choose for each course?

What if I'm not interested and don't like it? In response to such problems of young children, we have carried out the "Elder Brother and Sister into the Classroom" early childhood bridging activity.

We invited the older brothers and sisters of Qingdao Middle School, Qingdao Experimental School and Beijing Experimental Second Primary School, which the children are about to enter, to collect small question marks and questions from the children in advance.

According to the questions raised by the younger siblings, the elder brothers and sisters made exquisite PPT animations to solve the confusion in the hearts of prospective primary school students.

Toddler: "Do we have to carry school bags every day?" But my bag was messy every time, and I couldn't find anything. ”

My sister, who has just entered the first grade: "When I first started using my school bag, I was always messy because I didn't know how to tidy up, but after I learned to organize my school bag, my school bag was always neat and tidy, and I could find what I was looking for at once." ”

Sister: "First of all, you have to know the structure of your schoolbag, for example, my schoolbag, there is a large layer, there is a small bag, and there are two small bags on both sides, I can put my water cup in the small bag on the side, such as a pencil ruler, eraser pencil sharpener, etc. I put the pencil case in the front of the big bag, put the book, textbooks in order from small to large and then put it in the large layer of the schoolbag, there will be a lot of A4 paper after school, if you put it in the schoolbag casually, it is easy to roll up and tear up, If you use a transparent folder, not only can you save it neatly, but you can also find what you want at a glance. ”

Toddler: "But I still need to put the keys to our house, where should I put them in my school bag?" ”

Sister: "Small bits and pieces like this and important items, I buried them in the front of the schoolbag in a small layer, not only the zipper is not easy to fall out, but also easy to find in the small layer, no need to touch in the schoolbag." ”

The first grade sister explained in detail to the children the use of each layer of the schoolbag and why it is put in the big bag and the reason why, the children immediately got their schoolbags and began to organize their own supplies, the simplest is to put the pencil eraser ruler and these writing supplies directly into the pencil case, under the guidance of the sister, also learned to organize the book. It is not difficult to organize the school bag, but it is also necessary for the children to strengthen the school bag by insisting on keeping it neat, and they need to organize the next day's lessons and school supplies every night.

Through the activities of the elder brothers and sisters entering the classroom, not only did the children in the kindergarten have a preliminary understanding of the life and learning of primary school students, and the sorting method of schoolbags, but also stimulated the children's desire to be a primary school student and laid the foundation for them to enter primary school smoothly.

If the outside is round, and the two lines of R length are 90 degrees... The shaded part is an isosceles right triangle, i.e.:

The area of an isosceles triangle is the base multiplied by the height and divided by 2, which is exactly r times r divided by 2

So the square of r divided by 2 equals 50

Calculate r=10

Then the area of the circle is multiplied by r squared.

Multiply the square of r.

That's 100 times that.

Equal to 314 By the way, you are too talented.

This circle was drawn with the Paint tool? Well drawn!

One half [r 2] = 50

r^2=100

r = root number 100 = 10

s circle = multiplied by r 2 = multiplied by 100 = 314

Some symbols won't hit, forgive me. Seek adoption.

S Yin = 50m, r = 10m, s circle = r = 100 (if there is a value for the question, please substitute it). This question is relatively simple, the point is to calculate r, which is the king.

The above answer is that in the case that the shaded part is an isosceles right triangle, if according to the first floor, the shaded part is not a right triangle, then it cannot be calculated in this way, and as far as I know, I feel that there is no solution. I am a new high school freshman, I hope I can help you.

First of all, are the two radii perpendicular?

Please ask.