Escape the maze by connecting all the words with stress on the FIRST syllable. Follow the example. Then listen to check your answers. Practise saying the words.

(Thoát khỏi mê cung bằng cách kết nối các từ với các từ có trọng âm ở âm tiết thứ nhất. Làm theo ví dụ. Sau đó nghe để kiểm tra câu trả lời của em. Thực hành đọc các từ.)

1. What are the missing letters? Complete the sentences using the pictures to help you. The first word is done for you.

(Những chữ cái còn thiếu là gì? Hoàn thành các câu bằng cách sử dụng các hình ảnh để giúp bạn. Từ đầu tiên được thực hiện sẵn cho bạn.)

Example: Smartphones allow us to get access to the Internet anywhere.

(Điện thoại thông minh cho phép chúng ta truy cập Internet ở mọi nơi.)

2. Complete the sentences using these words. There are some extra ones.

(Hoàn thành các câu bằng cách sử dụng những từ này. Có một số từ thừa.)

1. Many__________inventions in the world are the results of hard work and _________experiments.

2. Things such as old clothes or toys seem ________, but you can donate them to charity. Some poor people may be ______ in them.

Read the text and circle the correct answers.

(Đọc văn bản và khoanh tròn các câu trả lời đúng.)

Inventions and discoveries by accident!

The invention or discovery of something is not always the result of careful experiments. Sometimes, luck can help scientists (1) finding /find new things. Below are some famous examples.

Gravity: (2) Discover / Discovering the law of gravity is probably the most famous example. Isaac Newton (3) sat / was sitting under an apple tree when an apple (4) fell/ was falling on his head. He realised that something made apples fall straight to the ground. That was gravity!

Penicillin: Alexander Fleming came back from his holiday. He (5) was cleaning / cleaned his laboratory when he (6) discovered / was discovering something at the window. That was penicillin! Since then, doctors (7) used / have used penicillin around the world to save millions of lives

Popsicles: In 1905, 11-year-old Frank Epperson decided (8) to make / making himself a soft drink. When he finished (9) make / making the drink, he left it outside with the wooden stick inside it. That night, the drink froze in cold weather and thanks to this 'accident', popsicles were later invented!