Answers to A Little Science Works a Lot of Magic

Patterns in Use

句型一

Exercise A

2 Which shirt to wear to the job interview worried Chloe.

3 Teddy is planning what to do with his girlfriend during Christmas.

4 The young mother doesn’t know how to take care of her new-born baby.

5 When to hand in our papers is the thing we care about most.

Exercise B

1 what to wear

2 where to buy

3 which pair of shoes to choose

4 how to dance

5 Whom/Who to dance with

句型二

Exercise A

1 My grandfather has difficulty using a smartphone.

2 The mountain climbers had trouble making a fire on such a cold day.

5 Marco had problems understanding what the foreign visitor said.

4 The kids have fun playing trick-or-treat on Halloween.

5 Jenny had a good time going to the movies with her best friends.

Exercise B

2 has/had problems finishing his homework by himself

3 have/had a good time playing on the sand

4 has/had fun reading the book with his brother

5 has/had a hard time losing weight

Writing Hands-on

Exercise A

1 B  2 C  3 A

Exercise B

Supporting idea 1: Take sugar cubes, for example. You can add a sugar cube to coffee or tea to make the drink sweet.

Supporting idea 2: Sugar cubes can keep cookies crisp.

Exercise C

1 The food is ready in a short time.

2 The place is usually big and clean.

3 It’s pretty easy to find a fast-food restaurant in most cities.

Comprehension Check

1 D  2 C  3 A