It is estimated that about 200 million people who use the internet computer network around the world . Most people use the internet to get information or for entertainment . A new study , however , says that almost 6% of internet users are using it so often that it is seriously harming their lives . The study says these people may find it difficult to stop using the internet because they have become addicted . Someone who is addicted finds it extremely difficult to stop an activity . According to Mr. Greenfield, a psychologist , 30% internet users say that they use the internet to escape from problems or emotions . The study also shows that having discussions with strangers in internet areas called ' chat room ' is one of the most addictive activities. 

WHAT IS THE BEST TITLE OF THE PASSAGE? 
A. DISAVANTAGES OF USING 'CHAT ROOM'
B. VIRTUAL WAY TO ESCAPE FROM PROBLEMS OR EMOTIONS
C. THE INTERNET AND ITS DISAVANTAGES
D. THE ADVANTAGES OF THE INTERNET

các best t.anh giải hộ mik với

 

Worksheet (Week 31)Nhắc nhở: Mỗi lần bạn rời khỏi màn hình kiểm tra, hệ thống sẽ lưu lại và báo cáo.

(3đ)Choose the word that differs from the other three in the position of primary stress.

Question 1: connection   battery   scientist   internet

Question 2: decisive   electric   uneasy   impolite

Question 3: satisfaction   uncomfortable   impolitely   unemployment

(7đ)Choose the correct answer to complete each of the following sentences.

Question 4:Peter __________ dinner when you get home.

   will be cooking   has cooked   cooks   cooked

Question 5:I think the factory __________ its workers with robots.

   isn't going to replace   won't replacewon't    have replaced   doesn't replace

Question 6:Tom __________ his marriage anniversary this time next week.

has celebratedwill    have celebrated   will be celebrating   celebrates

Question 7:Modern freezing __________ enable our food to be stored for weeks.

   Means   techniques   manners   skills

Question 8:She became a(n) __________ because she was interested in coding.

   Chemist   astronaut   software developer   explorer

Question 9:He works as a(n) __________. He studies the buildings, graves, tools, and other objects of people who lived in the past.

Conservationist   architecture   physicist   archaeologist

Question 10:Consider becoming a(n) __________ if you want to learn about different cultures.

   Mechanic   explorer   physician   engineer

(4đ)Fill in each blank with the correct form of the word on brackets.

Question 11:It'sto turn back time and change the past, but you can learn from it. (possibility)

Question 12:Thewas disappointed to see so much litter on the beach. (conserve)

Question 13:He was tooto wait for the elevator and took the stairs instead. (patience

Question 14:The new building looks completelyin this historic part of town. (nature)

(4đ)Choose the sentence that best rewrites the sentence given.

Question 15:‘I saw you walking your dog yesterday,' she told me.

She said that I had seen you walking her dog the previous day.

She said that she had seen you walking my dog the following day.

She said that she saw me walking my dog the previous day.

She said that she had seen me walking my dog the previous day.

Question 16:‘I want to see new places,' Tony said

Tony said that I wanted to see new places.

Tony said that he wanted to see new places.

Tony said that he had wanted to see new places.

Tony said that he wants to see new places.

Question 17:‘I will have to cancel my dental appointment,' Liz said.

Liz said that she would have to cancel her dental appointment.

Liz said that I would have to cancel my dental appointment.

Liz said that she will have to cancel her dental appointment.

Liz said that she would have to cancel my dental appointment.

Question 18:‘We have visited this castle several times,' Mr. Smith said.Mr.

Smith said that we had visited this castle several times.Mr.

Smith said that they visited that castle several times.Mr.

Smith said that they had visited that castle several times.Mr.

Smith said that we visited this castle several times.

 Đem đốt cháy hoàn toàn 11 gam hỗn hợp X gồm CH4, C2H2, C2H4, sau phản ứng thu được 33 gam khí cacbonic. Viết các phương trình hoá học và tính % khối lượng CH4 có trong hỗn Trong bài tập trên các bước giải em đều hiểu.Tuy  nhiên đến phần tính % CH4 .làm thế nào cũng không ra. Thầy cô hướng dẫn cách giải giúp . Cam on nhiều

Cho ΔABC vuông tại A có AB = 6cm, BC = 10cm và đường cao AH

a) Chứng minh: ΔABH ᔕ ΔCBA và AB² = BH.BC

b) Tính AC, AH

c) Tia phân giác của \(\widehat{ABC}\) cắt AH, AC lần lượt tại I và D. Chứng minh: \(\dfrac{IH}{IA}\) = \(\dfrac{DA}{DC}\)

d) Tính S_ABI