Science and technology - Hello! Beyond Words Term 1 - أول اعدادي

50 50 UNIT 4 Lesson objectives: • Use the zero conditional to talk about facts 4 Science and technology and things that are always true Listen to and understand a talk about science and technology 1 Think about science and technology. Do you study them at school? What do you do in these subjects and why are they useful? 2 Listen to a talk about science and technology. Then look at the sentences about the two subjects and circle S (science) or T (technology). 1 helps our understanding of how the world works S/T 2 helps us to do jobs more quickly and produce more things S/T 3 studies information, records it, and tests it S/T 4 uses information about the world to help design devices S/T 3 12345 Listen again. Match the definitions to the words in the box from the talk. aim (n) cool (v) device efficiently freeze (v) prove (v) : to show that something is true : what you want to achieve when you do something : to turn water into ice _: to lose heat :: quickly and with good results : a small electronic machine Work in pairs. Ask and answer questions about technological devices. Which are the most important in our lives today? Which device do you think is the most important? 6 4 Why do you think that? I think phones are the most important. Because we use them for so many things!

5 Read the Language box and choose the correct answer to complete the rules. The zero conditional We use the zero conditional to talk about facts and things that are always true: ... if fresh water cools to a temperature of 0°C, it always freezes into solid ice. We can't design a new phone if we don't understand how electricity works. Conditional sentences usually have 1 one / two parts: the if-clause and the main clause. When the if-clause comes first, we put a 2 period / comma between the two clauses. When the if-clause comes second, we don't use one. We use the 3 present / future simple tense in both clauses. Match clauses (1-5) to clauses (a–e) to make zero conditional sentences. UNIT 4 6 1 If it rains in the desert, a you have to spend a lot of money. 2 If you want a good phone, Ib I'm always tired the next morning. 3 If you press this button, c you click on this picture? 4 If I go to bed late, d plants can suddenly appear. 5 What happens if e it takes a photo. 7 1 If I don't wear Complete the sentences with the correct form of the verbs in brackets. (not / wear) my glasses, I can't see 2 the door that button? 3 If we 4 If you 5 What (open) if you (can / not / see) well. (press) (cycle) to the beach, it (be) much quicker. (read) a lot, you (learn) more words. (happen) if you (add) some oil? 8 Look at the pictures. Use the prompts to write zero conditional sentences about them in your notebook. 1 press button / TV turn on PASSWORD 2 cannot use computer / not remember password 3 can hear video call better/wear headphones 4 play lots of video games/eyes get tired 51