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Giải bài tập SGK Tiếng Anh lớp 10 Unit 9: Undersea World

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Detected invalid UTF-8 for field path "$set.content": Gi?i bi t?p SGK Ti?ng Anh l?p 10 Unit 9: Undersea World
A. Reading(Trang 94-95-96 SGK Ti?ng Anh 10)
Before you read(Tr??c khi b?n ??c)
-Work with a partner. Look at the map and give the Vietnamese names for the oceans on the map. (Lm vi?c v?i b?n h?c. Nhn vo b?n ?? v vi?t tn cc ??i d??ng trn b?n ?? b?ng ti?ng Vi?t.)
Antarctic Ocean: Nam B?ng D??ng
Arctic Ocean: B?c B?ng D??ng
Atlantic Ocean: ??i Ty D??ng
Indian Ocean: ?n ?? D??ng
Pacific Ocean: Thi Bnh D??ng
-Work with a partner. Look at the pictures below. Can you name the sea animal in each picture? The first letter of the word has been given to help you. (Lm vi?c v?i b?n h?c. B?n c th? g?i tn cc ??ng v?t bi?n trong m?i b?c tranh? Ch? ci ??u tin c?a t? ? ???c cho s?n gip b?n.)

Seal: h?i c?u
Jellyfish: con s?a
Turtle: ra bi?n
Shark: c m?p
While you read(Trong khi b?n ??c)
Read the text and do the tasks that follow. (??c ?o?n v?n v lm cc bi t?p theo sau.)
H??ng d?n d?ch:
Ch? c m?t ??i d??ng duy nh?t. N ???c chia thnh n?m ph?n khc nhau: Thi Bnh D??ng, ??i Ty D??ng, ?n ?? D??ng, Nam B?ng D??ng v B?c B?ng D??ng. C?ng cn c nhi?u bi?n, vng, v?nh nh? h?n l m?t ph?n c?a cc ??i d??ng ?y. Nh?ng ??i d??ng ny chi?m 75% b? m?t tri ??t. Nhi?u th? k? nay nh?ng b m?t n?m su d??i lng ??i d??ng ? thch th?c con ng??i. Tuy nhin, cc nh khoa h?c hi?n nay v?i cc trang thi?t b? hi?n ??i ? v??t qua ???c nh?ng thch th?c c?a ??i d??ng. Con ng??i ??a tu ng?m ?i kh?o st ?y bi?n v ??a ln b? nh?ng m?u sinh v?t bi?n ?? nghin c?u thm. Nh?ng b?c ?nh ch?p t? v? tinh cung c?p r?t nhi?u thng tin, bao g?m nhi?t ?? n??c bi?n, ?? su v cc c? dn d??i bi?n. N?u khng c nh?ng cng ngh? hi?n ??i, chng ta s? ch?ng bao gi? c nh?ng thng tin qu gi nh? th?.
??ng, th?c v?t bi?n ???c chia thnh ba nhm chnh. Nhm s?ng nh? v l? thu?c vo t?ng ?y nh? loi sao bi?n. Nhm ??ng v?t b?i nh? cc loi c v c m?p di chuy?n khng ph? thu?c vo dng n??c trong khi cc loi sinh v?t nh? b khc b? dng n??c cu?n tri ?i nh? loi s?a bi?n. ??ng th?c v?t bi?n d c kch th??c nh? b hay to qu c? ??u gp ph?n vo s? ?a d?ng sinh h?c c?a bi?n. N?u s? ?a d?ng sinh h?c ny khng ???c duy tr, sinh v?t bi?n s? b? ?e d?a.
Task 1.The words in the box all appear in the passage. Fill each blank with one of them. There are more words than needed. (Cc t? trong khung xu?t hi?n trong ?o?n v?n. ?i?n vo m?i ch? tr?ng m?t t? trong s? ?. C nhi?u t? h?n c?n thi?t.)
1. tiny
2. investigate
3. gulf
4. biodiversity
5. samples
Task 2.Read the passage again and then answer the following questions. (??c l?i ?o?n v?n v tr? l?i cc cu h?i sau.)
1.What percentage of the earth's surface is covered by seas and oceans? (Bao nhiu ph?n tr?m b? m?t tri ??t ???c bao ph? b?i bi?n v ??i d??ng?)
=> 75% of the earth's surface is covered by sea and oceans.
2.How do scientists now overcome the challenges of the depth? (Cc nh khoa h?c ? v??t qua thch th?c c?a ?? su nh? th? no?)
=> They now overcome the challenges of the depth by using modern devices.
3.What can submarines do to help scientists know about the undersea world? (Tu ng?m c th? gip g cho cc nh khoa h?c khm ph th? gi?i ??i d??ng?)
=> They investigate the seabed and bring samples of the marine life back to the surface for further study.
4.What can we learn from the satellite photos? (Chng ta c th? bi?t ???c g qua cc ?nh v? tinh?)
=> We can know a wide range of information, including water temperature, depth and the undersea population.
5.What are the three groups of marine plants and animal? (Ba nhm ??ng th?c v?t bi?n l cc nhm no?)
=> They are those that live on or depend on the bottom like the starfish, those that move independently of water currents and those that are carried along by the currents.
6.What would happen if the sea biodiversity were not maintained? (?i?u g s? x?y ra n?u h? sinh thi bi?n khng ???c duy tr?)
=> The marine life would be at stake if the sea bioadversily was not maintained.
After you read(Sau khi b?n ??c)
Work in pairs. Complete the summary of the reading passage by filling each blank with a word or phrase given in the box below. (Lm vi?c theo c?p. Hon thnh bi tm t?t c?a bi ??c b?ng cch ?i?n vo m?i ch? tr?ng m?t t? ho?c c?m t? ? cho trong khung bn d??i.)
1. three-quarters
2. mysterious
3. modern
4. discoveries
5. biodiversity
6. huge
7. plants and animals
8. closely connected
B. Speaking(Trang 97 SGK Ti?ng Anh 10)
Task 1.Below are some actions that should be taken to protect our oceans.Work in pairs. Put the actions in the order of importance and then say what we should or should not do. (D??i ?y l m?t s? hnh ??ng nn ???c th?c hi?n ?? b?o v? ??i d??ng c?a chng ta. Lm vi?c theo c?p. X?p th? t? cc hnh ??ng theo t?m quan tr?ng v sau ? ni nh?ng g chng ta nn ho?c khng nn lm.)
X?p th? t?:
6-a & b
1-f)I think action (f) is the most important because if we learn all about the oceans we can we'll understand their values and try to protect them.
=> We should learn all about the oceans.
2-e)We should not use herbicides, pesticides and fertilizers that harm the environment.
3-c)We should not fish for species that are limited, threatened or endangered.
4-d)We should dispose of fishing lines and nets properly.
5-g)We should keep only the fish we will eat and release the rest.
6-a & b)We should place rubhlish and plastic bags in proper dustbins and use watter sparingly and do not pollute it.
7-h)We should choose our seafood responsibly.
Task 2.Work in groups. Below are some threats to the health of the oceans. Discuss the consequences that might occur and offer some possible solutions. (Lm vi?c theo nhm. D??i ?y l m?t s? m?i ?e d?a v?i ??i d??ng. Th?o lu?n cc h?u qu? c th? x?y ra v ??a ra m?t s? gi?i php.)
A:Beaches are filled with plastic bags, pieces of glass and cigarette butts. Thismakesthe sea polluted and endanger sea plants and animals.
B:And weshouldclean up beaches and tell people not to litter them.
C:We alsoshouldset up posters at holiday resorts, especially on the beaches, and have the campaign of "Keep our environment clean and beautiful" in schools, that is weshouldeducate children and people about a clean and healthy environment.
A:Whales and sharks are still hunted for food, medicine and other products.
B:This makes these sea animals extinct some day.
C:So all governmentsshouldhave laws that prohibit the hunt for these endangered sea animals for any purpose. And I think restaurants in the world don't serve the food made from these animals' meat.
Task 3.Report to the class what your group has discussed. (T??ng thu?t cho l?p nh?ng g nhm em ? th?o lu?n.)
My group has discussed the threats to beaches which are now being polluted with all kind of rubbish such as plastic bags, pieces of glass and cigarette buits, ... . And we think that in order to rescue beaches, we should clean them up and at the same time tell everybody not to litter them. Besides these, we should educate people how important a healthy environment can be to our life! And this project should be carried out in schools so that small school population can get a good habit of conserving environment from early ages.
C. Listening(Trang 98-99 SGK Ti?ng Anh 10)
Before you listen(Tr??c khi b?n nghe)
Work in pairs. Discuss the following questions. (Lm vi?c theo c?p. Th?o lu?n cc cu h?i sau.)
1.Do you think whales are fish? Why (not)? (B?n c ngh? c voi l thu?c loi c khng? T?i sao (khng)?)
=> The whale is a mammal because it raises its young on milk.
2.Why do people keep hunting whales? (T?i sao ng??i ta l?i s?n c voi?)
=> Because they want whales for food, oil, leather and other products.
Listen and repeat. (L?ng nghe v l?p l?i.)
mammal : ??ng v?t c v blue whale : c voi xanh
migrate: di c? conservation: b?o t?n
whaling: ngh? ?nh c voi
krill : loi nhuy?n th? m c voi ?n ???c
While you listen(Trong khi b?n nghe)
Task 1.Listen to some information about whales and decide whether the following statements are true (T) of false (F). (Nghe m?t vi thng tin v? c voi v xc ??nh xem cc pht bi?u sau l ?ng (T) hay sai (F).)
1. F
2. T
3. T
4. F
5. T
Task 2.Listen again and then answer the following questions. (Nghe l?i l?n n?a v sau ? tr? l?i cc cu h?i sau.)
1.What is the length and weight of the blue whale? (Chi?u di v chi?u r?ng c?a c voi xanh?)
=> The blue whale grows to 30 metres in length and over 200 tons in weight.
2.Why do whales like to feed in the cold oceans? (T?i sao c voi l?i thch ki?m ?n ? cc vng bi?n l?nh?)
=> Because there is a lot of krill - their favorite food in cold oceans.
3.According to the listening passage, what are the good feeding grounds for whales? (Theo nh? bi nghe, n?i ?u l n?i ki?m ?n t?t cho c voi?)
=> Cold waters in the North and South Atlantic Ocean and the North and South Pacific are the good feeding grounds for whales.
4.What is the main reason for the decrease in whale populations? (?u l l do chnh c?a vi?c gi?m s? l??ng c voi?)
=> Heavy hunting is the main reason for the decrease in whale population.
5.What have conservation groups asked the International Whaling Commission to do? (Cc t? ch?c b?o t?n ? yu c?u ?y ban qu?c t? s?n c voi lm g?)
=> They have asked the International Whaling Commission to stop most whaling.
6.What would happen if we didn't take any measures to protect whales? (?i?u g s? x?y ra n?u chng ta ? khng th?c hi?n b?t k bi?n php no ??u b?o v? c voi?)
=> If we didn't take any measures to protect whales, they would disappear forever.
After you listen(Sau khi b?n nghe)
Work in groups. Talk about whales, using the following cues. (Lm vi?c theo nhm. Ni v? c voi, s? d?ng cc g?i sau.)
The blue whale is the largest animal that ever lived on Earth. They grows to 30 metres in length and over 200 tons in weight. Their favorite food feed is krill which is in the cold oceans. So, cold waters in the North and South Atlantic Ocean and the North and South Pacific are good feeding grounds for whales. The number of whales is decreasing so we should take some measures to protect whales.
TAPESCRIPT - N?i dung bi nghe:
Whales are mammals that lives in the water. Some whales are huge. The blue whale, for example, grows to 30 meters in length and over 200 tons in weight. It is the largest animal that has ever lived on earth. Whales may also be the most intelligent animals in the ocean.
Whales like to feed in the cold oceans where there is a lot of krill - their favorite food. Cold waters in the North and South Atlantic Ocean and the North and South Pacific are good feeding grounds for whales. Some whales are known to migrate into warm waters to bear their calves.
Whale populations decrease quickly due to heavy hunting pressure. Conservation groups have asked the International Whaling Commission to stop most whaling. However, Native American hunters, such as the Eskimos, are still allowed to hunt a limited number of whales to feed their communities. If no effective measures were taken to protect whale, these wonderful animals would disappear forever.
D. Writing(Trang 99-100-101 SGK Ti?ng Anh 10)
Describing information from a table(Di?n t? thng tin t? m?t b?ng)
Task 1.Work in pairs. Read the description of sperm whale and then complete the table that follows. (Lm vi?c theo c?p. ??c ph?n miu t? C nh tng v sau ? hon thnh b?ng theo sau.)
H??ng d?n d?ch:
C nh tng l lo?i ??ng v?t c r?ng l?n nh?t trn tri ??t. Chng l ??ng v?t ?n th?t. M?c d c nh tng s?ng ? kh?p cc ??i d??ng nh?ng chng thch vng n??c c nhi?u m?c, th?c ?n chnh c?a chng. M?i ngy m?t con C nh tng c th? ?n ??n 1.500 kg th?c ?n. C nh tng l loi ??ng v?t kh?ng l?. M?t con c ??c c th? di ??n 18m, n?ng t?i 54.000kg trong khi con ci th nh? h?n m?t cht v?i chi?u di 12m, n?ng 17.000kg. C? n?m ??n b?y n?m, C nh tng ci sinh con sau th?i gian mang thai t? 14 ??n 19 thng. Tu?i th? c?a C nh tng c th? ??n 60 hay 70 n?m. ?i?u th v? l chng c?ng l loi ??ng v?t c v c b? no l?n nh?t, s? l??ng C nh tng ?ang b? ?e d?a do s? s?n b?t c?a con ng??i hay do chng v tnh b? m?c vo l??i c.
Hon thnh b?ng:
All oceans
Prefer waters with high squid populations
Male: 18m in length; 54.000kg in weight
Female: 12m in length; 17.000kg in weight
Carnivores; eat mainly squid
Eat up to 1.500kg of food daily
Give birth to one calf every 5-7 years
Gestation period: 14-19 months
Up to 60 - 70 years
Biggest animals that have teeth on Earth
Have the largest brain of all mammals
At risk due to hunting and accidental fishing net entrapment
Task 2.The table on the next page gives some information about the dolphin. Write a paragraph that decribes the facts and figures provided in the table. (B?ng ? trang ti?p theo cung c?p m?t s? thng tin v? C heo. Vi?t m?t ?o?n v?n miu t? cc s? ki?n v s? li?u ? ???c cung c?p trong b?ng.)

?o?n v?n g?i :
Dolphins are not fish. They are mammals that live in the water. Dolphins are among the most intelligent animals on Earth. Although they can be found in all oceans in the world, dolphins prefer coastal waters and bays. The size of dolphin vary greatly. The smallest dolphin is just about 50 kg in weight and 1,2 meters in lenght while the largest one can weigh up to 8,200 kg and is 10 meters long. Dolphins are carnivores and they eat mainly fish. A female dolphin gives birth to one calf every two years after a gestation period of eleven to twelve months. A dolphin can normally live from twenty-five to sixty-five years and some species dolphins can even live longer. Dolphin populations are at risk due to pollution of their habitat and accidental entrapment in fishing nets.