Guessing Game:Guess what words they are.A B

gentle nobodyplant

wing

everywhere suddenly

fierce

over

dinosaurs

Unit 5

Dinosaurs—Revision

Dinosaurs lived on the Earth over _______ years ago.

A. sixty hundred B. sixty million

C. sixty thousand D. sixty

When did dinosaurs live on the Earth?

B

million

★数字（ one… ） million

★millions of

…百万

百万

数百万

★ hundred（百） , thousand（千） , billion（十亿）

★ There are _______ people in the city.

A. millions of

D. million ofC. sixty millions of

B. sixty millions

★ There are over ________ students on the playground.A.two hundreds B. two hundred ofC. two hundred D. hundred of

A

C

Translate:

数百个学生 _________________ 二十亿人 ________________

三千本书 ___________________

hundreds of students

three thousand books

two billion people

数百万年 ________________ millions of years

We can know something about dinosaursfrom ________.encyclopaedias

• May got an encyclopaedia from her father and she found some beautiful pictures about dinosaurs. Let’s have a look.

skeleton(S)

footprint (s)

dinosaur egg(s)

Important nouns

million

skeletondinosaur

footprint

encyclopaedia(an)

dinosaur egg

In this passage, we also learnt some important verbs.

★ The Roman Empire ________(lives) for several centuries. existed

die out

★ I ___________ mind) him, but I've never met him.

(have information about something in your

★ What have we _________ (be left after one’s death)after going away?

★ Elephants would ________ if men were allowed to shoot as many as they wished

(stop existing)

left behind

know about

May wants to know something more about dinosaurs .

She found a video about dinosaurs on the internet . Now let’s watch it and please find something about dinosaurs’ food ， weight, size and their characters(品质、特征 )?

food:Some dinosaurs ate_____, other dinosaurs ate ______.

=others

Some …, others….

meat

plants

size:

Some dinosaurs were as_____ as ________, others were as______ as __________.

Some _____, others ______.

ten elephants

chickens

big

small

weight:

Some were…, others….

Mouth:

Describe dinosaurs’ appearance(外貌 ) with ‘some…others…’

Horn( 角 ) ：

Wing:

Characters:

Some were as _______ as_________ and ate______. So they were _________.

Others were _______ than __________ and ate_____. So they were ________.

sheepplants

meattigers

harmless

harmful

gentle

fiercer

as…as… harmful---harmless

Some… others…

as as… 和…一样…

1. Some dinosaurs were as ______ as sheep. (gentle, gently)2. English is used as ______ as possible. (wide, widely)3. You must drive as _______ as you can. (safe, safely)4. The box is as _______ as a stone. (heavy, heavily) 5. Mike doesn’t do his homework as________ as Mark. (careful, carefully)6. He can’t do the calculations as _________ as you. (accurate, accurately)

adj./adv.

gentle

widelysafely

heavycarefully

accurately

They are suffixes(后缀 ). –ful is a definite(肯定的 ) suffix ， -less is an indefinite (否定的 ) suffix 。

careful ---- careless useful–-- useless helpful --- helpless homeless(无家可归的 )

harmful---harmless

Complete the sentences with ‘harmful’,‘harmless’, ‘careful’, ‘careless’, ‘useful’, ‘useless’, ‘helpful’ or ‘helpless’.

1 ________ people may cause hill fires in forests.

2 A dictionary is really a ________ tool book.

3 The map is really ________ in the village. It helps a lot.

4 You should always be ________ when crossing a road.

5 The knife is blunt. It’s ________ now.

6 It’s ________ to your eyes to read in the bus.

7 He is as ________ as a baby.

8 The dog seems fierce, but it’s ________.

Important structures and adjectives:

Some…,others…as…as…fierce, fiercer than…harmful--harmless

... sixty million years ago.Some… . Others… (size)harmless…as gentle as… ateharmfulfiercer than… ate…die outknow about…from…leave behind

Retell the passage with the following words and phrases:

• What can we do to save endangered animals?

Discuss :

★ Use laws to stop people killing endangered animals. ★ Protect the our environment. ★ Call on people not to eat them. ★ Call on people not to buy or wear the clothes made

of those animals. ★ Protect homes and food of endangered animals.

……

endangered(濒临灭绝的 ) animals

Homework

• 1. Write a composition about what can we do

to save endangered animals.

• 2. Recite the key words and phrases.