Io—Jupiter

By Russell Evans

Answers

Activity 1

1. e； 2. c； 3. a； 4. g； 5. d； 6. f； 7. b

Activity 2 1. second-hand； 2. get rid of； 3. bargain； 4. fleas； 5. scruffy； 6. unique； 7. disposable income

Activity 3 1. False （F） -People have less money； 2. True （T）； 3. F -They sold scruffy furniture， probably with fleas； 4. F -Flea markets are a good opportunity to sell things you don't need； 5. T

Activity 4 1. cheaper； 2. biggest； 3. more interesting； 4. more expensive； 5. best

Activity 1

a. a bowl-shaped hole made by a big rock when it hits land very fast

b. a game in which two teams pull a rope in opposite directions

c. always moving and changing

d. find something for the first time

e. move around something in a circular or oval pattern

f. the natural law of physics which keeps suns， planets and moons together

g. the outside part of something that you can touch or see

h. when a volcano suddenly produces lava

Discovery

Secrets

Heat

Activity 2

Now complete the sentences using words and phrases from the text. Make any changes to the words that are necessary.

1. Apples fall from trees because of .......... .

2. I had a .......... night last night. I couldn't sleep at all.

3. Leif Ericson .......... America 500 years before Christopher Columbus.

4. The .......... ended suddenly when the players all fell over.

5. The largest .......... on Earth is 300 kilometres wide. lt's in South Africa.

6. The moon .......... Earth once every 28 days.

7. The table had a smooth， shiny .......... .

8. When the Krakatoa volcano .......... in 1883， people heard the noise nearly 5，000 kilometres away.

Activity 3

Choose one word from the box to complete each sentence. There are more words than you need.

cold

heat

rocks

Earth

Jupiter

tides

gravity

moon

volcanic

1. Galileo was the first person to see four moons in orbit around .......... .

2. Before Voyager 2， most people thought that Io was .....

3. The explanation for Io's smooth surface is that it is .......... .

4. Io's heat is caused by the .......... of Jupiter and two other moons.

5. The forces that affect Io are so strong that rocks move like ......

Activity 4

Look at these sentences from Paragraph 2 0f the text.

Io couldn't be hot inside like Earth because it was too small. And it couldn't be getting its heat from the sun because it was too far away.

Does 'too + adjective' have a positive meaning or a negative meaning？

Is ‘too used correctly or incorrectly in the following sentences？ Write C（Correct） or I（In-correct）.

1. She's speaking too quietly. I can't hear her.

2. This food is too delicious. We must come here again.

3. It's too far to walk-let's take a bus.

4. The ring was too beautiful. It was just what I was looking for.

5. The weather on holiday was too perfect， so we're going back there again next year.

Look at the incorrect sentences. Can you replace 'too' with 'very'， 'really' or either of these two words？ Write V （very）， R （really） or E （either）.

Activity 5

As we explore more of our solar system， what other surprises do you think we might find？ Do you think we will ever find life on other planets？

Answers

Activity 1

1. d； 2. h； 3. f； 4. a； 5. e； 6. c； 7. g； 8. b

Activity 2

1. gravity； 2. restless； 3. discovered； 4. tug-of-war； 5. impact crater； 6. orbits； 7. surface； 8. erupted

Activity 3

1. Jupiter； 2. cold； 3. volcanic； 4. gravity； 5. tides

Activity 4

negative

1. C； 2. I E； 3. C； 4. I E； 5. I R