1. Cho biết ý nghĩa của: F, 2H2O, 3Ca, N2.

=>F là flo

=>2H2O là 2 n.tố Hiđro vs 2 n.tố Oxi

=>3Ca là 3 n.tố Canxi

=>N2 là 2 n.tố Nitơ

2. Viết kí hiệu Than chì, Clo

KHHH của than chì:Pb

KHHH CỦA clo:Cl

turn the sentences into negative and interrogative

1.she went to the supermarket last week

=>SHE DIDN'T GO TO THE SUPERMARKET LAST WEEK

=>DID SHE GO GO TO THE SUPERMARKET LAST WEEK?

2.lan played badminton yesterday

=>LAN DIDN'T PLAY BADMINTON YESTERDAY

=>DID LAN PLAY BADMINTON YESTERDAY?

3.hoa read story last night

=>HOA DIDN'T READ STORY LAST NIGHT

=>DID HOA READ STORY LAST NIGHT?

4.lien and lan were in the same class last semester

=>LIEN AND LAN WEREN'T IN THE SAME CLASS LAST SEMESTER

=>WERE LIEN AND LAN IN THE SAME CLASS LAST SEMESTER?

5.ba's father worked in a factory last year

=>BA'S FATHER DIDN'T WORK IN A FACTORY LAST YESTERDAY

=>DID BA'S FATHER WORK IN A FACTORY LAST YESTERDAY?

6.nam had breakfast at 7 o'clock yesterday morning

=>NAM DIDN'T HAVE BREAKFAST AT 7 O'CLOCK YEATERDAY MORNING .

=>DID NAM HAVE BREAKFAST AT 7 O'CLOCK YEATERDAY MORNING?

7.tam studieD english last tuesday

=>TAM DIDN'T STUDY ENGLISH LAST YESTERDAY

=>DID TAM STUDY ENGLISH LAST YESTERDAY?

8.they enjoy watching tv when they were small

=>THEY DIDN'T ENJOY WATCHING TV WHEN THWY WERE SMALL

=>DID THEY ENJOY ENJOY WATCHING TV WHEN THWY WERE SMALL?

9.his mother cooked two days ago

=>his mother didn't cook two days ago

=>DID HIS MOTHER cook two days ago ?

10.hoa's mother visited da lat last summer

=>HOA'S MOTHER DIDN'T VISIT DA LAT LAST SUMMER.

=>DID HOA'S MOTHER VISIT DA LAT LAST SUMMER?

1.Choose the word that has the underlined part pronounced differently from the others 1. A.able B.table C.may D.rack

2. A.above B.no C.to D.oh

3. A.between B.felt C.sell D.herself

4. A.describe B.kiss C.give D.reflexive

2.Choose the word or phrase that best completes each unfinished sentence below:

1.We can easily the......under the sink in the kitchen.

A.armchair B.cushion C.bookshelf D.saucepan

2.Children often eat chemicals because they look like ..........

A.coca cola B.things C.candy D.cupboards

3.I am sorry but you have to cook dinner............

A.alone you B.youself C.yo​urself D.on you

4.studentS have to...........their homework after class

A.do B.study C.watch D.go

Tìm lỗi sai và sửa lại

1. What is your firs class in monday?=>ON

2. She have her breakfast at home=>HAS

3. what time she gets up every day?=>DOES SHE.....

4. How many floors is your school have?=>DOES

5. Does she wash she face and brush she teeth?=>HER

ĐÃ DIDN'T RỒI THÌ USE NGUYÊN MẪU NHA

Complete sentences with used to or didn't used to

1.your parents/read/to you?

=>did your parents use to read to you?

2. she/not/drink/bottled water

=>SHE DIDN'T USE TO DINK BOTTLE WATER

3. he/study/hard/when/he/a child

=>HE USED TO STUDY HARD WHEN HE WAS A CHILD

4. we/walk/the park/the afternoon

=>WE USED TO WALK THE PARK IN THE AFTERNOON

5. he/drink/coffee/now/tea

=>HE USED TO DRINK COFFEE BUT NOW HE DRINKS TEA

6. Peter/play/violin/now/guitar

PETER USED TO PLAY VIOLIN BUT NOW HE PLAYS GUITAR

7. Jill/live/England/now/spain

=>JILL USED TO LIVE ENGLAND BUT NOW HE LIVES SPAIN.

8. I/not/watch video/much/now/a little

=>I DIDN'T USE TO WATCH VIDEO SO MUCH BUT NOW I WATCH IT A LITTLE.

9. Paul/not/smoke/a pipe

=>PAUL DIDN'T USE TO SMOKE A PIPE.

10. My father/smoke/a packet/cigarettes/a day

=>MY FATHER USED TO SMOKE A PACKET CIGARETTES A DAY.

1.What is there in your living room?

2. How many couches in the living room?

3. How many boards are there in the classroom?

1. ___ENVIRONMENTAL___ claim that the virus among seals was caused by pollution. (ENVIRONMENT)

2. Using electricity is an __ENOCOMIC____ way of cooking. Gas is much cheaper. (ENOCOMY)

3. Thousands of people were made __HOMELESS____ by the earthquake in Japan. (HOME)

4. The love for books is helpful in ___DEVELOPMENT____ the pupils' knowledge. (DEVELOP)

5. This professor explained his ideas with great ___CLEARANCE___. (CLEAR)

6. Some people claim to be able to foretell the future. (TELL)

7. I was annyed at his ___REFUSAL_______ to co-operate. (REFUSE)

8. He was very _____SET_______ when his cat was run over. (SET)

9. He lost in the election because he was a weak and ____DECIDED__ leader. (DECIDE)

10. I travelled to Scotland on the __NIGHT___ train and slept all the way. (NIGHT)

lộn câu 10

=>>what did he do while they were working ?

nhầm:

0,8 x 96 + 1,6 x2

=76,8+3,2

=80

III. Translate these sentences

1. Họ đang ngủ lúc 4h chiều qua phải không?

=>WERE THEY SLEEPING AT 4:00 AFTERNOON?

2. Chúng tôi đang nói về cô ấy thì cô tới

=>WHEN WE TALK TO HER,SHE IS COMING.

3. Họ đang xây ngôi nhà này khi bạn ở Thái Nguyên phải không?

=>WRE THAY BUILDING THIS HOUSE WHEN YOU STAYED IN THAI NGUYEN ?

4. Họ đang thảo luận, thì tôi tới

=>WHEN THEY DISCUSS,I AM COMING.