The Chinese abacus is known as the suanpan. It is usually 20 cm ________ and comes in different widths. It usually ________ more than seven rods(杆子). There are two beads (算珠) on each rod in the upper deck and five beads each in the ________. The beads are usually round and made of ________. The beads are ________ by moving them up or down towards the beam(横梁). ________ you move them toward the beam, you count their value. If you move away, you don’t count their value. The suanpan can be reset (重置) to the ________ position quickly, so then you can start to count again ________ with it. In Japan, the abacus is ________ soroban. It was brought from China to Japan in the 14^th century. The use of soroban is still taught in Japan primary schools as part of ________.

One of the easiest ways to stop the spread of disease is to simply wash your hands. Twenty seconds of handwashing with soap and water can reduce _________ and save lives. But, many people, especially children, do not have good handwashing habits. One problem is that children do not wash their hands often enough or long enough. Children may think that it is a _________ thing to do.

To help solve this problem, Amanat Anand and Shubham Issar from India created a product called the SoaPen (肥皂笔) to turn handwashing into a _________ activity.

As the name suggests, the SoaPen is a pen made out of soap that kids can _________ with. The children draw on their hands with the soap pen and then wash it off. If _________ do not spend enough time washing it off, the colors will remain on the children’s hands. It’s a fun way to teach kids how to wash their hands.

Issar said the SoaPen is invented to teach kids good handwashing habits and it ensures that children spend enough time washing their hands. This may be especially _________ in a classroom. Often a teacher does not have the time to ensure that each child has washed their hands _________.

“Kids actually wash their hands for the proper amount of time _________ they’re drawing on their hands, and under water they have to rub really hard to remove the drawing. So they are actually washing their hands _________ just going under water.”

The product could have a great __________ on public health. The United Nations International Children’s Emergency Fund (UNICEF) reports that 1.5 million children die each year as a result of diarrhea. UNICEF says good handwashing habits could reduce that number by 40 percent.

Nowadays, many people drive their cars to work, There are a lot of cars in the street and the ________ is very busy. So sometimes ________ is not easy for people to get to work on time. When you are going to be late, you only dream of taking a plane there. Can your dream ________? Yes! Four engineers in Germany are ________ in making planes. They are making a new plane, Lilium jet. It doesn’t look like a plane ________ an egg. Many people think it looks funny and interesting. The great “egg” can take two people to the sky and ________ three hundred kilometres (公里) in one hour. That’s really great. Some people call Lilium jet “a flying car” Why? Firstly, it’s not difficult for people to learn to drive it. People can drive it just like driving a car. But it can go ________ and farther (更远) than a car. Secondly, Lilfum jet is not very big, only one fourth of a plane. So it doesn’t need an airport. Only a small place is OK. It can stop ________. In the future, the “flying car” will come into people’s life and ________ our ways of trip. Liliuin jet will come on the market soon. Do you want to make your ________ easy and funny? Why not buy one? I’m sure you will have a good time on it.