Long ago a lot of people thought the moon was a God . Other people thought it was just a light in the sky . And others thought it was a big ball of cheese .
Then telecopes were made .And men saw that the moon was really another world . They wondered what it was like . They dreamed of going there .
On July 20 , 1969 , that dream came true . Two American men landed on the moon . Their names were Neil Armstrong and Edwin Aldrin .
The first thing the men was that the moon is covered with dust . The dust is so thick that the men left footprints where they walked . Those were the first marks a living thing had ever made on the moon . And they could stay there for years and years . There is no wind or rain to wipe them off .
The two men walked on the moon for hours . They picked up rocks to bring back to us for study . They dug up dirt to bring back . They set up machines to find out things people wanted to know . Then they climbed back into their moon landing craft .
Next day the landing craft roared as the two men took off from the moon . They joined Micheal Collins in the spaceship that waited for them above the moon . Then they were off on their long trip back to earth .
Behind them they left the plains and tall mountains of the moon . They left the machines they had set up . And they left footprints that may last forever .

1What did telecopes help the men before 1969

They helped them know about the moon.

2Why did the men leave their footprints on the moon

Because the dust was so thick.

3What did astronauts bring from the moon

They brought rocks and dirt from the moon.

4What does the word ''it'' in line 3 mean -> The moon.

5What was the first thing the astrounauts find about the moon

It was covered with dust.

7 con nha bạn

day co phai la toan violympic vong 15 khong

the ki 19 do ban 

lay 1873 : 100 = 18,73

0,73 lam tron thanh 1 

lay 18+1= 19

mình ra 87,4

gggggggggggggggggg

0,48 ngu de so

Tổng 2 số lúc sau là:

79,85+15,4-20=75,25

                      Đáp số : 75,25

Ex 4: Word form
4._____Polluted____elements have been found in both ground and underground water sources . (pollute)
5. Fish and many other animals are killed by____pollution_____in their habitats . (pollute)
6. Astronomers are concerned about light pollution because thay have___difficulty___in viewing activities in the sky and outer space. ( difficult)
7. ___Natural__habitats have been destroyed in recent years . (nature)
8. A number of cleaning products contain ____harmful___chemical. (harm)
9. Water samples collected at these villages were seriously____contaminated___with bacteria. ( contaminate)
10.People believe that the____polluted___water has brought cancer to the local resident . (pollute)
11. Light pollution makes us _____unable____to see the stars in the sky.(able)
12. Noise is considered as_____environmental_____pollution.(environment)
13. The____contamination___of lake, rivers, oceans or underwater causes water pollution .( cotaminate)
14. The street dosen't look__attractive___because it has a lot of rubbish .(attract)
15. Are all types of pollution__harmful___to the health of human and animals. (harm)
16.The__environmentalists___are concerned about the oil spills in the East Sea. (environment)
17. Dumping __industrial___ waste into the lakes and rives has caused serious water pollution. ( industry)
18. Many people in this area have cholera because they drink__untreated___water.(treat)
19. Examples of primary ____pollution___are exhaust fumes from cars, soot from smoke. (pollute)
20. If we use water__carefully__, more people will have fresh water.(care)
21. The polluted water resuilts in the____death___of many aquaticanimals and plants. (die)
22. Both French and English are ___official___languages in Canada. ( office)
23. NSW is the ___abbreviation___of New South Wales , the most populous state in Australia. (abbreviate)
24. Do you know that the telephone , the televison , and penicillin are Scottish__inventions__? (invent)