Thực vật ở cạn đầu tiên là loài dương xỉ.

Vì:

- Rêu chưa có rễ chính tà thức

- Rêu chưa có các bộ phận hoàn chỉnh

- Rêu sinh sản nhờ bào từ và nhờ nuoc

1/

2/Rêu là rễ giả nên không có khả năn bám và khả năng hút nước còn hạn chế. Để có đủ muối khoáng, rêu phải sống ở nơi ẩm ướt

Tảo: Chưa có rễ, thân lá\(\rightarrow\)Thực vatah bậc thấp

Rêu: Đã có rễ, thân, lá giả

         Rễ đã biết hút nước và muối khoáng

          Rêu chưa có mạch dẫn

\(\Rightarrow\)Rêu là thực vật bậc cao

Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the bold word(s) in each of the following questions.

1. Mr Brown's new garage was not wide enough for the camper van to fit in.

A. old enough          B. so big                C. very long           D. too narrow

2. We got to the beach after 2 hours travelling by bus.

A. left                       B. reached             C. welcomed         D. swam

Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the bold word(s) in each of the following questions.

3. Jane says she is going to get married to a wealthy businessman.

A. famous                B. poor                  C. mean                  D. positive

4. Human beings have launched many man-made satellites into outer space.

A. special                B. enormous          C. natural               D. expensive

Mark the letter A, B, C or D to indicate the option that best completes each of the following exchanges.

5. - "How do you do?"  -    “_____”

A. I'm fine. Thank you.                       B. Happy to see you here.

C. Not too bad. And you?                   D. How do you do?

6. - "What's on the television tonight? - “_____”

A. A football match after the news      B. At half-past nine

C. The film is good                              D. I will go to the cinema

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 7 to 11.

Every year several thousand people died in car accidents in Great Britain. And between one and two hundred thousand people are hurt.

There are rules to make the roads safe, but people do not always obey the rules. They are careless. If everybody obeys the rules, the road will be much safer. How can we make the roads safer?

Remember this rule. In Great Britain, traffic keeps to the left. Cars, buses and bikes must all keep to the left side of the road. In most other countries, traffic keeps to the right.

Before crossing the road, stop and look both ways. Look right and left. Then, if you are sure that the road is clear, it is safe to cross the road. If you see small children or very old people, help them to cross the road. We must teach our children to cross the road safely. We must always give them a good example. Small children must not play in the street.

7. If we want to make the roads safer, _____.

A. everybody must be careful and obey the traffic rules

B. traffic should keep to the right

C. we should not cross the road too often

D.  all the roads must be clear

8. If you ride a bike in Great Britain, you must ride_____.

A. on the right side of the road

B. on the left side of the road

C. in the middle of the road

D. behind the buses

9. Which of the following is NOT true, according to the passage?

A. Few people die in traffic accidents in Great Britain.

B. In our country traffic keeps to the right.

C. Cars kill many people every year.

D. Streets are not safe places for playing.

10. What does it mean by "The road is clear."?

A. The road is not noisy.

B. The road is very clean.

C. There is no car or bus running.

D. You can see clearly on the road.

11. The safe way to cross the road is to_____.

A. look right only                                   B. look left, and look ahead

C. run across the road without looking D. look both ways, right and left

Read the following passage and mark the letter A, B, C or D to indicate the correct word or phrase that best fits each of the numbered blanks from 12 to 16.

Coronavirus germs live in people's throats and mouths. When someone who has the coronavirus coughs or sneezes or breathes out, the germs come (12)______their mouth in tiny drops of water.

Though you can't see the germs, you can sometimes see these tiny drops. In cold weather, they make a cloud of steam! So if someone else (13)______ breathes in the air with the coronavirus germs in it, they would probably get the illness.

It's easy to get the coronavirus germs from inside your body on your hands (14)______you touch your nose or your mouth. If the person with the coronavirus germs on their hands uses a door, the invisible germs can live on the handle for hours. When someone else opens the door, they (15)______the germs on their hands too. And if they touch their nose or mouth, the germs can get into their body.

So you (16)______also catch the coronavirus by touching things that someone with the virus has already touched.

12. A. into                   B. out of                C. to                         D. because of

13. A. accidentally     B. generally           C. decisively            D. usually

14. A. what                 B. when                 C. which                   D. unless

15. A. make                B. bring                 C. get                       D. search

16. A. should              B. need                  C. must                     D. can

Từ 14 tuổi đầu mà tôi chưa gặp cái TH nào như cái TH này

Giả sử ở một dãy núi, người ta đo được nhiệt độ ở chân núi là 26*C, ở đỉnh núi là 14*C. Vậy dãy núi đó có độ cao là bao nhiêu ? ​Ta biết cứ lên cao 1000m nhiệt độ không khí giảm 6oC. Trong bài này. từ chân núi lên đỉnh núi giảm 12*C. Vậy độ cao dãy núi là 2000m

 kinh vê lốc :<

ɔː /bơ tui ah?????????/ chán thấy mọe T^T

Hok cs chi âu nak  mk  chỉ mún rúp hoy