حل درس Then and Now اللغة الإنجليزية الصف الرابع

حل درس Then and Now اللغة الإنجليزية الصف الرابع

Good morning

Welcome to the English Class

National Anthem

Unit 6 Lesson: 7

Then and Now

• We are learning to:
• read and re-read short simple texts.
• use “who” & “which” to connect sentences.
• use “used to” to talk about a past habit or state

A
Scientists used to think that all dinosaurs had scaly skin, like lizards. Now scientists have
found fossils of dinosaurs which had feathers.

B
Scientists used to think
that dinosaurs had no living relatives. Now scientists think that over millions of years, small dinosaurs became birds.

C
Scientists used to think that there were no poisonous dinosaurs. Recently scientists
discovered a dinosaur with teeth like a poisonous snake.

D
Scientists used to think that dinosaurs were cold-blooded, like snakes. Then they discovered that dinosaur bones were like the bones of other warm-blooded animals.

E
Scientists used to think that
dinosaurs couldn’t climb trees.
Then scientists in China discovered small dinosaurs which used their claws to climb trees.

Lesson 7 Then and now
1 Read and write
Read page 99 of your Learner’s Book. Complete the sentences with used to and the words in the box.

be (x2) climb have think

1 Some dinosaurs Used to have feathers.
2 In China, some dinosaurus Used to climb trees.
3 Scientists Used to think that there were no poisonous dinosaurs.
4 Some birds Used to be small dinosaurs.
5 Scientists now believe that some dinosaurs Used to be warm-blooded.

We use Who to talk about people.
Who is your new friend?
We use which to talk about animals or things.
Which is your favourite fruit?

who

He is the teacher who teaches science.

which

A T-Rex was a dinosaur which ate other dinosaurs.

2 Use of English
Read the sentences. Circle the correct word which or who.
1 A scientist is someone which/who studies Science and discovers new things.
2 Dinosaurs were animals which/who are now extinct.
3 Your parents are relatives which/who take care of you.
4 Your teacher is someone which/who helps you learn new things.
5 A pencil is something which/who you write with.
6 A computer is a very useful machine which/who you can use for many things