内容正文:
1. The government had better ______ (take) action _________(prevent) air pollution.
2. Binoculars can help you see ________(clear).
3. It takes hours __________ (watch) the birds.
take
to prevent
clearly
to watch
用所给单词的适当形式填空。
4. Take a pair of sunglasses with you __________(protect) your eyes.
5. The gym is about 500 square metres in _______(area).
to protect
area
1. Many ________(visit) come to Yancheng Nature Reserve to go birdwatching every year.
2. There are ________(speak) in each corner of the hall.
3. Yi Jianlian is my favourite basketball ________(play).
4. Einstein was one of the greatest ________(science) in history.
visitors
speakers
player
scientists
We can add -er, -or and -ist to some
words (n./v.) to form nouns for people.
Verb/Noun + Suffix Noun
speak + er speaker
visit + or visitor
tour + ist tourist
Sometimes we need to change the ending of the verb/ noun when we add the suffix.
dance dancer
win winner
piano pianist
science scientist
表示人的身份、职业、国籍等的后缀
-er
farmer speaker reporter dancer
-or
editor actor director sailor
-ist
artist scientist
-an
musician politician Asian Indian
-ese
Chinese
Change the following words into nouns for people by adding the correct suffixes.
1 act ___________ 6 play_____________
2 art __________ 7 report____________
3 drive __________ 8 science____________
4 farm __________ 9 work______________
5 paint __________ 10 write____________
actor
player
artist
reporter
driver
scientist
farmer
worker
painter
writer
A
Complete the following sentences with the correct nouns of the words in brackets. Use the plural form if necessary.
B
Birds are ________(sing). They can make
beautiful sounds. Some _______(act) can
make different bird sounds. It is very interesting.
A lot of _________(tour) go to the wetlan