I. Language

Listen and complete the conversation. Then underline the weak forms of the auxiliary verbs, circle the contracted forms, and mark the consonant-to-vowel linking with (‿). Practise saying the conversation in pairs.

A: What's it like living (1) _________ skyscraper?

B: (2) __________ great. I (3) __________ enjoy the best views (4) ___________ the city from my sofa.

A: (5) __________ have a balcony?

B: No, (6) ___________. (7) ___________ huge windows.

Example:

Choose the correct answers A, B, C, or D to complete the following sentences.

1. If you want to stay healthy, you should have a balanced diet and _________ regularly.

A. work out                B. take out

C. speak out               D. stand out

2. For a healthy diet, you should ____________ sugar and eat more vegetables.

A. take on                   B. cut down on

C. go on                     D. cut with

3. Many experts believe that good ___________ transport will solve traffic problems in big cities.

A. individual              B. private

C. public                    D. national

4. People feel safe in this neighbourhood because ____________ are installed everywhere.

A. smart cities            B. smartphones

C. smart cars              D. smart sensors

5. People of different generations often come into ____________ with one another.

A. belief                     B. conflict

C. agreement              D. support

6. My brother is a true ___________. He grew up with technology, and started using a computer at an early age.

A. curious boy           B. critical thinker

C. digital native         D. book lover

Solve the crossword. Use words and phrase you have learnt in Units 1, 2, and 3. The first letters are given to help you.

DOWN

1. Hong Kong aims to replace the old high-rise buildings with sustainable s___________ .

2. The high cost of living is a problem for many city d___________ .

ACROSS

3. Thanks to the new t___________ , his health has improved quickly.

4. It is important to pass cultural v____________ from one generation to the next.

5. Many parents limit their children’s s___________ to less than two hours per day.

6. If you want to build up your muscles s____________ , you need to lift weights.

Complete the sentences with the correct forms of the verbs in brackets.

1. My mother (take up) _____________ aerobics ten years ago.

2. The government (just, decide) _______________ to increase taxes on fast food.

3. I (win) ______________ several races since I started a new workout routine.

4. The idea of smart cities (start) _____________ in the 21st century.

5. So far, more than 70 million people (receive) _____________ vaccines to build protection against the virus.

6. I (already, show) ______________ my grandmother how fo use her new smartphone.

Choose the correct words or phrases.

1. You look so angry / angrily. What's wrong?

2. I think / I'm thinking of taking up yoga. I feel a bit stressed / stress these days.

3. Do you remember / Are you remembering Ms Wilson? She’s a great yoga instructor.

4. The traffic gets / is getting worse. What do you think / are you thinking we should do?

Choose the correct answers A, B, C, or D to complete the following sentences.

1. If you want to maintain a healthy weight, you _________ have snacks between meals.

A. shouldn't             B. should            C. must              D. don't have to

2. I __________ strictly follow the doctor’s instructions if I want to get better quickly.

A. shouldn't           B. must                C. can                D. don't have to

3. The government ___________ improve the infrastructure of big cities to boost the economy.

A. mustn't             B. doesn't have to            C. should             D. didn't have to

4. People living in high-rise buildings ___________ obey the safety rules and regulations strictly.

A. shouldn't              B. mustn't             C. may              D. have to

5. Lots of women in the past ___________ stay at home, look after their children, and do all housework.

A. must                 B. should                C. had to             D. have to

6. My parents respect my career choice, so I __________ follow in their footsteps.

A. mustn’t             B. don‘t have to           C. should            D. shouldn't