Vẽ sơ đồ giới hạn sinh thái của cá chép, biết cá chép sống được ở nhiệt độ từ 2-45 độ c, khoảng thuận lợi là từ 25-35 độ c, điểm cực thuận là 30 độ c.

nhân tố sinh thái là gì? có mấy nhóm nhân tố sinh thái? cho ví dụ. tại sao con người được xếp vào nhóm nhân tố sinh thái riêng?

Cho đường tròn (O;R) đường kính AB. Trên tia đối của tia AB lấy điểm M sao cho MA=R. Vẽ tiếp tuyến MC với đường tròn (O) (C là tiếp điểm ). Vẽ dây CD vuông góc với AB tại H.Chứng minh:

a) MO là đường trung trực của BC

b) MD là tiếp tuyến của đường tròn (O).

c) Kẻ đường kính CE của đường tròn (O). Tính mC, DE theo R.

Cho ba điểm A, B, C trên một đường thẳng theo thứ tự ấy và một đường thẳng d vuông góc với AC tại A. Vẽ đường tròn đường kính BC và trên đó lấy 1 điểm M bất kì. Tia CM cắt d tại D, tia AM cắt đường tròn tại điểm thứ hai là N, tia DB cắt đường tròn tại điểm thứ hai là P. a) Chứng minh: Tứ giác nội tiếp ABMD

b) Chứng minh: CM.CD không phụ thuộc vào vị trí điểm M

c) Tứ giác APND là hình gì? Tại sao?

d) Chứng minh: Trọng tâm G của AMAC chạy trên 1 đường tròn cố định khi M di động.

Mark letter A, B, C or D to indicate the sentence that is closest in meaning to the given one.

Question 1: Mike hasn’t touched a book since the semester began.

                 A. Mike hasn’t gone to the library.              B. Mike hasn’t begun the semester.

                 C. Mike hasn’t bought any books.               D. Mike hasn’t studied at all this semester.

Question 2: She tends to lose her temper for no reason.

                 A. She often gets angry for no reason.         

                 B. She has no reason so she loses her temper.

                 C. She has no reason for tending to lose her temper.                  

                 D. She easily gets angry when there is a reason.

Question 3: There isn’t enough room for anything else in the fridge.

                 A. The fridge is so full that you can’t put in anything else.                     

                 B. There isn’t anything else in the fridge in this room.

                 C. There’s no room left for the fridge.                                       

                 D. The fridge can’t be put in this room because there isn’t enough.

Question 4: You got lost because you didn’t do what I told you.

                 A. If you followed what I told you, you wouldn’t get lost.                      

                 B. If you had followed my instructions, you wouldn’t have got lost.

                 C. Unless you do what I told you, you will get lost.

                 D. You didn’t get lost because you did what I told you.

Question 5: He found the jewels  while he was in an old sack.

                 A. He discovered the jewels tied inside an old sack.                               

                 B. Tied inside an old sack, he discovered the jewels.

                 C. Tied inside was an old sack.                                                             

                 D. He found the jewels in an old sack.

Mark letter A, B, C or D to indicate the correct response to each situation in each of the following exchanges

Question 1:      Henry: “Would you mind if I smoked here?”

                 Kate:    " _______."

                 A. Don't worry about it                               B. Never mind

                 C. Don't mention it                                     D. Go ahead

Question 2:      Waiter:   "I have passed the exam with flying colors"

                 Andrew: " _______."

                 A. Congratulations    B. OK                       C. Yes, please           D. I am so sorry

Mark letter A, B, C or D to indicate the sentence that is closest in meaning to the given one.

Question 1: Mike hasn’t touched a book since the semester began.

                 A. Mike hasn’t gone to the library.              B. Mike hasn’t begun the semester.

                 C. Mike hasn’t bought any books.               D. Mike hasn’t studied at all this semester.

Question 2: She tends to lose her temper for no reason.

                 A. She often gets angry for no reason.         

                 B. She has no reason so she loses her temper.

                 C. She has no reason for tending to lose her temper.                  

                 D. She easily gets angry when there is a reason.

Question 3: There isn’t enough room for anything else in the fridge.

                 A. The fridge is so full that you can’t put in anything else.                     

                 B. There isn’t anything else in the fridge in this room.

                 C. There’s no room left for the fridge.                                       

                 D. The fridge can’t be put in this room because there isn’t enough.

Question 4: You got lost because you didn’t do what I told you.

                 A. If you followed what I told you, you wouldn’t get lost.                      

                 B. If you had followed my instructions, you wouldn’t have got lost.

                 C. Unless you do what I told you, you will get lost.

                 D. You didn’t get lost because you did what I told you.

Question 5: He found the jewels  while he was in an old sack.

                 A. He discovered the jewels tied inside an old sack.                               

                 B. Tied inside an old sack, he discovered the jewels.

                 C. Tied inside was an old sack.                                                             

                 D. He found the jewels in an old sack.

Watching TV is a very popular pastime in the UK. But what kind of programmes do British people like to watch? Well, the most-watched TV programmes every week are very popular dramas that are usually on at least four times every week. They are dramas based in one neighborhood that try to depict ordinary life in the UK - we call these dramas 'soap operas' or 'soaps'.

 In the early days of TV, there were often dramas on during the day. Back in those days, it was traditional for the husband to go out to work and for the wife to stay at home and look after the house and the children. Most of these daytime dramas were aimed at entertaining the housewives who would traditionally be at home, probably doing the washing. Companies selling washing powder would advertise their products at times when these dramas were on, and sometimes those companies would even sponsor the drama. Hence the word 'soap'.

So what about the word opera? Well, that's because these dramas are often an exaggeration of real life. They are supposed to represent ordinary lives but, to make them entertaining, lots of dramatic events, like murders, divorces, affairs etc., all happen probably much more regularly than they would in a normal neighbourhood.

Most soap operas these days are shown in the evening. Each show will have several different storylines happening at once that continue over several shows. The same cast members will appear in every show, too.

Question 1: : What type of programmes do British people prefer to watch?

                 A. drama series         B. soap opera            C. comedy                D. musical

Question 2: Why did sponsors advertise soap on TV during the mornings?

                 A. Because most women were at home doing their housework and watching TV.

                 B. Because it was cheaper to advertise during the day.

                 C. Because there were only television programmes during the day.

                 D. Because advertisements were aimed at entertaining the housewives.

Question 3: The word “soap” in “soap opera” refers to ______.

                 A. the classical singing you hear in the drammas                          

                 B. products sold on television

                 C. washing powder used by housewives to do the washing                     

                 D. a musical play in which all of the words are sung

Question 4: According to the passage, soap operas ______.

                 A. are mostly shown in daytime                  

                 B. offer accurate depictions of ordinary life

                 C. have lots of continuing storylines happening over a few shows.

                 D. tend to focus on female characters

Question 5: Which of the following statements is NOT true?

                 A. British people don’t really like watching TV.                                                

                 B. In the early days, dramas were often shown in daytime.

                 C. Soap operas are usually more exaggerated than normal life.      

                 D. Each cast member will appear in some episodes.

Read the text and choose the letter of the best word for each space.

       The Internet is a system that connects computer networks. The Internet links millions of computers all over the world. It (1)…………your computer to get information stored on other computers. Computers connect to the Internet through telephone and cable systems.

The Internet grew out of ARPANET, a computer network (2) ………… by the United States military in the 1960s. From the 1970s until the 1980s, the U.S government only let a few scientists and people in the military (3) ………… it. In the 1980s, the government let networks at universities join with ARPANET to create the Internet. The Internet grew quickly. Schools, libraries, governments, companies and families (4) ………… on the Internet by the mid-1990s. At first, it was hard to get information from the Internet. You could only see words and numbers on your computer. Then a British computer scientist named Timothy Bemers-Lee created the World Wide (5) ………… in the 1980s.

Question 1: A. allows                          B. let’s                         C. makes                      D. forbids

Question 2: A. which created                 B. to create                   C. created                     D. creating

Question 3: A. to use                            B. use                           C. using                        D. used

Question 4: A. are                                B. have been                C. were being               D. were

Question 5: A. War                               B. Web                         C. Wed                         D. Wax

Mark letter A, B, C or D to indicate the part that is incorrect.

Question 1:      Many young people lack skills, good education, and financial to settle in the urban areas where                                                    A                                                      B                                       C

                 many jobs are found.

                                       D

Question 2:      My school tie had orange and red stripes on it. How was yours like?

                             A                                                     B       C              D

Question 3:      My father's just come out of hospital. He'll need extra care at home for a few weeks until he's                 

                                                  A                                             B

                 enough fit to look after himself again.

                      C                                  D

Read the following passage and mark letter A, B, C or D to indicate the correct word that best completes each blank.

Denmark is the smallest and most southerly of the countries of Scandinavia, (29) _______ lie in northern Europe. It is probably best (30) _______for being home to the powerful Vikings, (31) _______1000 years ago. Denmark is a small country, with limited natural (32) _______. Nevertheless, it has become one of the richest countries in the (33) _______.

Denmark has its own (34) _______culture and traditions, and a tongue- twisting language, which includes several different dialects. Although Denmark is a member (35) _______the European Union, recently it has been reluctant to work more closely with the EU and give up (36) _______of its independence.

Wealth in Denmark is shared out more evenly than in most countries, because people pay high taxes. Many workers pay more than 50 percent of their wages in tax. the money is used to pay (37) _______a welfare system, which includes health care, benefits for the unemployed and the elderly, and public services. Compared to the rest of the world, it is (38) _______to become either very rich or very poor in Denmark

Question 4:      A. which                  B. where                   C. whose                  D. when

Question 5:      A. seen                     B. heard                   C. liked                    D. known

Question 6:      A. since                    B. less                       C. over                     D. more

Question 7:      A. natures                 B. sources                 C. resources             D. features

Question 8:      A. space                   B. world                   C. earth                    D. land

Question 9:      A. disliked               B. disinterested        C. distant                 D. distinctive

Question 10:    A.  in                        B. of                         C. from                    D. to

Question 11:    A. very                     B. some                    C. many                   D. every

Question 12:    A. on                        B. to                         C. at                         D. for

Question 13:    A. difficult               B. easy                     C. impossible           D. simple

Read the following passage and mark letter A, B, C or D to indicate the correct answer to each of the questions that follow.

      Different Colours can affect us in many different ways; that’s according to Verity Allen.  In her new series ‘Colour me Healthy’, Verity looks at the ways that colours can influence how hard we work and the choices we

make.  They can even change our emotions and even influence how healthy we are.

‘Have you ever noticed how people always use the same colours for the same things?’ says Verity.  ‘Our toothpaste is always white or blue or maybe red.  It’s never green.  Why not? For some reason we think that blue and white is clean, while we think of green products as being a bit disgusting.  It’s the same for businesses.  We respect a company which writes its name in blue or black, but we don’t respect one that uses pink or orange.  People who design new products can use these ideas to influence what we buy.’

            During this four-part series, Verity studies eight different colours, two colours in each programme.  She meets people who work in all aspects of the colour industry, from people who design food packets, to people who name the colours of lipsticks.  Some of the people she meets clearly have very little scientific knowledge to support their ideas, such as the American ‘Colour Doctor’ who believes that serious diseases can be cured by the use of coloured lights.  However, she also interviews real scientists who are studying the effects of green and red lights on mice, with some surprising results.

            Overall, it’s an interesting show, and anyone who watches it will probably find out something new.  But because Verity is goes out of her way to be polite to everyone she meets on the series, it’s up to the viewers to make their own decisions about how much they should believe.

Question 14:    What is the writer doing in the text _______?

                        A. giving information about a television presenter

                        B. giving his opinion of a recent television show

                        C. giving information about how colours influence us

                        D. reporting what happens in a new television series

Question 15:    Which of the following shows the probable content of the four shows?

                        A. Part 1 – Health; Part 2 – Products and Industry; Part 3 – Emotions; Part 4 – Decisions

                        B. Part 1 – Blue and Black; Part 2 – Red and Orange; Part 3 – White and Grey; Part 4 –                                        Green and Yellow

                        C. Part 1 – Meeting Designers; Part 2 – Meeting People Who Name Colors; Part 3 – Meeting                                     Doctors; Part 4 – Meeting Scientists

                        D. Part 1 – Cleaning Products; Part 2 – Make-up; Part 3 – Clothes; Part 4 – Food

Question 16:    According to Verity, why is a knowledge of colour important?

                 A. It can help you to choose the best products.

                 B. It can give you new ideas.

                 C. It can help you to change people’s minds.

                 D. It can help you to sell products

Question 17:    Who does the writer repect least?

                        A. The "Color Doctor                               B. The scientists who work with mice

                        C. Verity Allen                                         D. The people who name lipsticks

Question 18:    The word "Overall" in paragraph 4 is closest in meaning to _______.

                 A. Rarely                  B. Readily                C. Generally             D. Partially

Mark letter A, B, C or D to indicate the correct response to each situation in each of the following exchanges

Question 19:    Henry: "I am afraid I've broken your umbrella."

                 Kate:    " _______."

                 A. Don't worry about it                             B. It's the same

                 C. Don't mention it                                   D. Not at all

Question 20:    Waiter:   "What would you like to drink?"

                 Andrew: " _______."

                 A. No, thanks           B. OK                      C. Yes, please          D. Coffee with milk, please

Mark letter A, B, C or D to indicate the sentence that is closest in meaning to the given one.

Question 21:    The electricity has been cut off for two days now. All the food in the freezer has been                  defrosted.

                 A. The electricity has been cut off for two days now; consequences, all the food in the freezer has            been defrosted.

                 B. The electricity has been cut off for two days now so that all the food in the freezer has been                  defrosted.

                 C. The electricity has been cut off for two days now; as a result, all the food in the freezer has                  been defrosted.

                 D. The electricity has been cut off for two days now; however, all the food in the freezer has                  been defrosted.

Question 22:    My grandparents' lake house was built in 1953. It was completely destroyed by the forest                  fire.

            A. My grandparents' lake house was built in 1953, when it was completely destroyed by the             forest fire.

            B. My grandparents' lake house was built in 1953, so when it was completely destroyed by the             forest fire.

            C. My grandparents' lake house, built in 1953, was completely destroyed by the forest fire.

                 D. The forest fire destroyed my grandparents' lake house was built in 1953.

Question 23:    I suggested that he should paint the house light blue.

                 A. "Let's paint the house light blue," I said to him.

                 B. "Why don't you paint the house light blue?" I said to him.

                 C. "Shall we painted the house light blue?" I said to him.

                 D. "How about to paint the house light blue?" I said to him.

Question 24:    His eel soup is better than any other soups I have ever eaten.

                 A. His eel soup is the worst of all soups I have eaten.

                 B. His eel soup is good but I have ever eaten many others better.

                 C. Of all the soups I have ever eaten, his eel soup is the best.

                 D. I have ever eaten many soups that are better than his eel soup.

Question 25:    She thinks my students are more intelligent than yours.

                 A. She thinks your students aren't as intelligent as mine.

                 B. She thinks your students don't look as intelligent as hers.

                 C. She thinks yours are as intelligent as my students.

                 D. She thinks your students weren’t as intelligent as my students.