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Tips for pedestrian safetyBe visible: Make sure you're visible to drivers (1) ______  and make eye contact with them whenever possible. You should wear light coloured or reflective clothing at night.Stay alert – Avoid distractions: Your (2) ______  can tell you a lot about what is happening around you so they are your best tools to stay safe. Be sure to use them effectively. Don't wear headphones or use your phone when travelling on the road. They can take your eyes and ears off the road and...
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Tips for pedestrian safety

Be visible: Make sure you're visible to drivers (1) ______  and make eye contact with them whenever possible. You should wear light coloured or reflective clothing at night.

Stay alert – Avoid distractions: Your (2) ______  can tell you a lot about what is happening around you so they are your best tools to stay safe. Be sure to use them effectively. Don't wear headphones or use your phone when travelling on the road. They can take your eyes and ears off the road and (3) ______  you.

Follow the rules: Knowing and (4) ______  all traffic rules, signs and signals will help increase your safety.

Walk in safe places: Use zebra crossings or pedestrian bridges when (5) ______. If there are none of them, find the most well-lit spot on the road to cross and wait for a long gap in traffic to make it safely across the street. Walk on sidewalks or pavements whenever possible.

1. A. sometimes                 B. never                   C. whenever             D. at all times       

2. A. eyes and ears                      B. head                    C. legs                      D. fingers

3. A. attract                        B. distract                C. pay                      D. receive

4. A. writing                               B. saying                  C. following             D. surveying

5. A. walking on the road            B. going out             C. crossing the street D. pushing up

                                       giúp mk câu này nha, mk cảm ơn trc ^^

4

Tips for pedestrian safety

Be visible: Make sure you're visible to drivers (1) ______  and make eye contact with them whenever possible. You should wear light coloured or reflective clothing at night.

Stay alert – Avoid distractions: Your (2) ______  can tell you a lot about what is happening around you so they are your best tools to stay safe. Be sure to use them effectively. Don't wear headphones or use your phone when travelling on the road. They can take your eyes and ears off the road and (3) ______  you.

Follow the rules: Knowing and (4) ______  all traffic rules, signs and signals will help increase your safety.

Walk in safe places: Use zebra crossings or pedestrian bridges when (5) ______. If there are none of them, find the most well-lit spot on the road to cross and wait for a long gap in traffic to make it safely across the street. Walk on sidewalks or pavements whenever possible.

1. A. sometimes                 B. never                   C. whenever             D. at all times       

2. A. eyes and ears                      B. head                    C. legs                      D. fingers

3. A. attract                        B. distract                C. pay                      D. receive

4. A. writing                               B. saying                  C. following             D. surveying

5. A. walking on the road            B. going out             C. crossing the street D. pushing up

1)D

2)A

3)B

4)C

5)C

Theo cách của tôi!!!

~HT~

Xét tam giác ABC

            CAB + BCA + ABC = 180 (Tính chất tổng ba góc trong tam giác vuông)

Mà ABC = 70o

      ACB = 30o

=> Ta tính được BAC = 80o 

mà ACD = 80o 

+> BAC = ACD 

mà hai góc này nằm ở vị trí sole trong 

=> AB // CD

9 tháng 10 2021
  • huongdoan3869
  • 25/10/2020

bài 1 ;

1..My uncle stars a new job.It's hard work but he s it.

2.He finishes his homework and he can relax now.

3.He loses his mobile phone and he doesn't know where it is.

4.She wins a lot of money and is going to spend it on a holiday.

5.They buya lot of clothes and don't have any money left.

6.They spend all their money on computer games.

1.my uncle.....has started...........a new job.it's hard work but he s it

2.he.....has finished.......his homework and he can relax now

3. he .......has lost..........his mobile phone and he doesn't know where it is

4. she.....won........a lot of money and is going to spend it on a holiday

5. they.........bought......a lot of clothes and don't have any money left

6. they.......spend........all their money on computer games

7. she......sent..........an e-mail to her friend and is waiting for her friend to write back

8 he.........passed.......all his exams and his parent are very pleased with him.

~HT~

9 tháng 10 2021

ta có : ^A +^B+^BCA=180* ( tổng 3 góc của 1 tam giác)            chú ý : mk dùng dấu * thay cho độ

suy ra: ^A+70*+30*=180*

suy ra :^A=180* - (70*+30*)=80*

vì ^A=^ACD=80* mà 2 góc này ở vị trí so le trong 

suy ra :AB//CD

9 tháng 10 2021

a ) \(\frac{x}{15}=\frac{y}{7}\)và \(x-2y=16\)

Áp dụng tính chất của dãy tỉ số bằng nhau ta có :

\(\frac{x}{15}=\frac{y}{7}=\frac{x}{15}=\frac{2y}{14}=\frac{x-2y}{15-14}=\frac{16}{1}=16\)

\(\Rightarrow\hept{\begin{cases}\frac{x}{15}=16\\\frac{2y}{14}=16\end{cases}}\)\(\Rightarrow\hept{\begin{cases}x=240\\y=112\end{cases}}\)

9 tháng 10 2021

b ) Từ \(\frac{x}{4}=\frac{y}{5}\)\(\Rightarrow\)\(\frac{x}{4}.\frac{1}{6}=\frac{y}{5}.\frac{1}{6}=\frac{x}{24}=\frac{y}{30}\)( 1 )

Từ \(\frac{y}{6}=\frac{z}{7}\)\(\Rightarrow\)\(\frac{y}{6}.\frac{1}{5}=\frac{z}{7}.\frac{1}{5}=\frac{y}{30}=\frac{z}{35}\)( 2 )

Từ ( 1 ) và ( 2 ) ta có :\(\frac{x}{24}=\frac{y}{30}=\frac{z}{35}\)

Áp dụng tính chất dãy tỉ số bằng nhau ta có :

\(\frac{x}{24}=\frac{y}{30}=\frac{z}{35}=\frac{2x}{48}=\frac{y}{30}=\frac{z}{35}=\frac{2x+y-z}{48+30-35}=\frac{15}{43}\)

\(\Rightarrow\hept{\begin{cases}\frac{2x}{48}=\frac{15}{43}\\\frac{y}{30}=\frac{15}{43}\\\frac{z}{35}=\frac{15}{43}\end{cases}}\)\(\Rightarrow\hept{\begin{cases}x=\frac{360}{43}\\y=\frac{450}{43}\\z=\frac{525}{43}\end{cases}}\)

11 tháng 10 2021

sự thích nghi của thú với điều kiện sống lại phong phú và đa dạng vì :

+ Thú hô hấp hoàn toàn bằng phổi 

+ Hệ thần kinh dạng ống phát triển cho phép hình thành nhiều tập tính học được từ đó dễ dàng thích nghi với điều kiện sống

+ Hệ cơ , xương vận động linh hoạt thuận tiện cho các hoạt động bắt mồi , kiếm ăn , chạy chốn kẻ thù ..

+ Tuần hoàn : 2 vòng tuần hoàn , tim 4 ngăn , máu nuôi cơ thể là máu đỏ tươi