4. Read the text. Match the titles to the paragraphs a-f. One title is extra.

International Space Station Celebrates 15 Years in Orbit

1. Moving a Space House B

2. Scientific Centre D

3. Birthday Greetings -

4. A Good Beginning Makes a Good Ending A

5. Space for Privacy F

6. International Home C

7. Work Out at the Space Gym! E

A A Good Beginning Makes a Good Ending

On November 20th, 1998, a Russian rocket launched off with an unusual piece of cargo - Zarya ('sunrise' in Russian), the module that became the first piece of the largest manmade structure ever built in airless space - The International Space Station (ISS). Designed to be the power source for the ISS, it orbited earth for two weeks, before being joined by Unity.

B Moving a Space House

Launched by the US Space Shuttle Endeavour on December 6th, 1998, Unity arrived with a crew of six American and Russian astronauts. A few days later, the American module was successfully attached to the Russian module. On December 11, 1998, at 2.54 pm, the astronauts made history by becoming the first humans to board the newly established International Space Station.

C International House

Over the years, the ISS has grown to the size of a football pitch with about the same amount of livable space as a normal six-bedroom house. So it’s big enough for hosting teams of astronauts from around the world, for as long as six months at a time. What's even cooler is that this large construction project is a never before seen international cooperation. Five different space agencies - NASA, Roscosmos, ESA, JAXA and CSA, representing 15 countries have come together to make the ISS a reality.

D Scientific Centre

Over the last 15 years, astronauts have made174 spacewalks and spent 1,100 hours or nearly 46 days on different missions in open space. With over 1,500 experiments done in the five research modules, the station has been responsible for many important scientific discoveries and breakthroughs.

E Work Out at the Space Gym!

Besides performing ing experiments, all astronauts that reside at the ISS are living experiments themselves. That's because they allow scientists to monitor the effects of zero gravity on the human body and seek out solutions to fight them. For example, one of the biggest illnesses suffered by astronauts used to be weakened bones and muscles. Today, the effects have been reduced by changing their diets and adding a gym to the ISS.

F Space for Privacy

Psychological health which is as important as physical well-being, has also been improved by providing the astronauts with tiny cabins that allow for some time to be alone and the opportunity to talk to their loved ones in private. These improvements are very important for the scientists that visit the ISS for short or longer periods of time.

Grammar and Vocabulary

5. Read the text and fill in the gaps with the words derived from the capitalized words.

History of skyscrapers

Two (1) discoveries in the middle of the 1800s made it possible to DISCOVER

build modern skyscrapers. Before the (2) Industrial Revolution brick INDUSTRY

and stone walls carried the (3) weight of buildings. Because each floor WEIGH

was very heavy it was (4) impossible to build very high houses. POSSIBLE

In the middle of the 19th century steel became an important (5) building BUILD

material. This metal was strong and light. Architects could now construct

a steel skeleton to support very tall (6) buildings. Chicago’s Home BUILD

Insurance Company Building was ten stories tall and the first skyscraper

to use such a steel (7) construction. CONSTRUCT

Skyscrapers would have been (8) useless if people had to walk up and USE

down many flights of stairs. In 1853 an (9) elevator safe enough ELEVATE

to carry passengers was invented by Elisha Graves Otis.

(to be continued)