Who has the new goal of teaching English to people Who has the new goal of teaching English to people

Who has the new goal of teaching English to people Who has the new goal of teaching English to people

1. Watch TV
2. Do homework
3. Eat dinner
4. TV show
5. Write a letter
6. Read a Book
7. Wait for
8. Talk about
9. At school
10. At home
11. At the pool
12. Play soccer
13. Talk on the phone
14. Thanks for Thank you

Ask for all the key points of unit 11 in the first volume of the seventh grade people's Education Press

The following contents are for reference only and belong to the reprint content: 9. The expression of time (1) direct reading, that is, to read the time number directly 7:05 seven five 8:16 eight six (2) over, difference, that is, a few points, a few points over. (30 points as the dividing line) 1:25 twenty five past one 2:30 half PA

Answers to unit 11 in the seventh grade English exercise book of people's Education Press

Question 1: 1) four o, clock 2) half past five 3) go to school 4) get up 5) take a shower 6) go to work 7) get to 8) go to bed
Question 2: 1) do do 2) sleep 3) do works 4) puts 5) speak 6) take 7) do have 8) tell 9) gets 10) look
1）,clock.2）because 3）take 4）about 5）homework 6）afternoon 7）early
8) Break fast 9) learn 10

The long-distance bus from a to B originally took 3.5 hours. After the opening of the expressway, the distance was shortened by 30 kilometers, while the average speed was increased by 30 kilometers per hour, which took only 2 hours to reach. Find the distance of the expressway between a and B

Suppose the distance between a and B is x km, then: x2-x + 303.5 = 30, the solution is: x = 180, answer: the distance between a and B is 180 km

If the equation (x + 3) ² + a = 0 has real roots, then the value range of a is

Solution 1
(x+3)²+a=0
(x+3)²=-a
∵(x+3)²≧0
∴-a≧0
∴a≦0
Solution 2
(x+3)²+a=0
x²+6x+9+a=0
b²-4ac=6²-4*1*（9+a）≧0 ∴a≦0

Inequality equation
1. It takes 10 hours for a ship to go from a in the upper reaches of a river to B in the lower reaches, and less than 12 hours for a ship to return from B to a at a constant speed. The water velocity in this section of the river is 3 km / h, and the ship's clean water velocity V remains unchanged. What conditions does V meet?
2. The length of a spring is 16.4cm when a 2kg object is suspended and 17.9cm when a 5kg object is suspended?
(hint: to use the relationship between the mass of the spring hanging object and the length of the spring extension, M = K (L-A), where a is the length of the spring hanging object, K is a constant, M is the mass of the spring hanging object, and l is the length of the spring hanging m kg object.)
3. There are 10 dimes, 5 dimes and 1 yuan coins each. 15 of them are worth 7 yuan in total. How many dimes, 5 dimes and 1 yuan coins do you take?
The first problem is solved by inequality, and the next two problems are solved by binary or unitary. Explain the reason
4. Lao Zhang and Li bought the same number of breeding rabbits. One year later, the number of breeding rabbits raised by Lao Zhang was two times more than the number of breeding rabbits bought. The number of breeding rabbits raised by Lao Li was one less than twice the number of breeding rabbits bought. The number of breeding rabbits raised by Lao Zhang was no more than two-thirds of the number of breeding rabbits raised by Lao Li. How many breeding rabbits did Lao Zhang buy at least a year ago?
Use inequality to solve.

1. Solution: the equation s = (V + 3) * 10 can be obtained in 10 hours from the upstream a to the downstream B, and the equation s < (v-3) * 12 can be obtained in less than 12 hours from the downstream B. It can be seen that V < 3 or V > 33, if the original spring length is x and the progress coefficient is k, then K (16.4-x) = 2kgk (17.9-x) = 5kg, then k = 2000N / m

Given that the tolerance and the first term of the arithmetic sequence {an} are not equal to 0, and A2, A4 and A8 are proportional, then A3 + A6 + a9a4 + A5 = ()
A. 2B. 3C. 5D. 7

The tolerance and the first term of ∵ arithmetic sequence {an} are not equal to 0, and A2, A4 and A8 are equal proportion sequence, ∵ A42 = a2a8, ∵ (a1 + 3D) 2 = (a1 + D) (a1 + 7D), ∵ D2 = a1d, ∵ D ≠ 0, ∵ d = A1, ∵ A3 + A6 + a9a4 + A5 = 18a19a1 = 2

2.04 tons = () tons () kg 3.6 square kilometers = () hectares = () square meters

2.04 tons = (2) tons (40) kg 3.6 square kilometers = (360) hectares = (3600000) square meters
I wish you progress in your study!

On April 14, 2010, Yushu, Qinghai Province, experienced an earthquake of magnitude 7.1. A batch of transport vehicles rescued 150 tons of disaster materials for the disaster area. If the disaster materials were transported at one time, the following figure shows
Capacity x 3 6 x 15 x
Quantity 75 x 15 x 5
What's the ratio between the carrying capacity and the quantity?

Your question is not clear. What does "quantity" mean?
Usually, there is a balance between the carrying capacity and the total weight of materials and the number of vehicles
Total weight of materials transported / vehicle load = number of vehicles required (or number of vehicles x running times)
In the case of the same number of vehicles: it can be concluded that: the total weight of materials and vehicle load is inversely proportional

How many tons is a cubic stone slag equal to?
As the title````

The density of carbon dioxide is 1.96g/l, one cubic meter is 1000L, so one cubic meter is 0.00196t