1.Vì sao người làm vườn có biện pháp che nắng hoặc tránh rét cho cây ?

2. Vì sao khi chạy cơ thể nóng dần lên toát mồ hôi và nhịp thở tăng ?

3. Biện pháp rèn luyện để có hệ hô hấp khỏe mạnh .

cho a/3=b/4=c/5 . Tính giá trị biểu thức B = a+b+c/a+2b-c

IV. WRITING  

A.Circle the mistake

25. The school year usually begins in September 5^th every year.

A. year B. begins C. in D. 5^th

26. Students play hide and seek in the school playground at the moment.

A. play B. and C. in D. playground

27. My mother often buys cooking oil at a grocery store near to the post office.

A. My B. buys C. at D. near

28. I don't like listening to pop music. Lan doesn't like it, too.

A. don't B. listening C. like D. too

29. We have donated books and clothes for ten years.

(Rewrite the sentence with given words that keeps the same meaning)

We started

30. This film/ not as/ interesting/ the one we/ see/ last week.

(Complete the sentence with the words given)

31. I need four cartons of milk. (Make a question for the underlined part)

32. My hobbies are not the same as my sister’s. (DIFFERENT FROM)

(Rewrite the sentence, using the words in the bracket)

   B. Rearrange the words to make correct sentences.

1. of/  fond/ She / cartoon./ watching/is

……………………………………..……………………………………..…………

2. I/ a/ butter/ stick/ need/ of.

……………………………………..……………………………………..…………

3. you/ like/ Would/ a / milk?/carton/ of

……………………………………..……………………………………..…………

C. Rewrite the following sentences with the given words and/or beginning in such a way that the meanings stay unchanged.(0,4)

1.Let’s go to the zoo.

How about……………………………………………………….?

2.You should give up playing too much computer games.

It’s good for  ………………………………………………………………….

Every summer, Vietnamese secondary school students have the chance to participate in a campaign (1) __________  Hoa Phuong Do (The Red Flamboyant). This campaign aims at helping (2) __________ fortunate people in the societies. Students can take part in many activities. For example, they can organize summer activities for children, teach children (3) __________  to swim or provide review lessons. These activities help students contribute (4) __________   the community and (5) __________  into helpful citizens in the future.

1. A. called B. calling C. call

2. A.less B.lots of C. much

3. A.what B.how C.why

4. A.in B.with C. to

5. A.become B. develop C. grow

cho 3 số x,y,z đôi 1 khác nhau và chứng minh rằng :

\(\dfrac{y-z}{\left(x-y\right)\cdot\left(x-z\right)}+\dfrac{z-x}{\left(y-z\right)\cdot\left(y-x\right)}+\dfrac{y-x}{\left(z-x\right)\cdot\left(z-y\right)}=\dfrac{2}{x-y}+\dfrac{2}{y-z}+\dfrac{2}{z-x}\)

(1/3)³ *9 + 3/4