Giải sách bài tập tiếng Anh 8 Unit 16: Inventions

Unit 16: Inventions

1. Active or passive? Write A in the brackets if the sentence is in the active voice and P if it is in the passive voice. (Trang 137 sách Bài tập Tiếng Anh 8)

a. My sister was given mark 10 for her mid-term history test. (P)

b. He won the first prize in the English-speaking contest last month. (A)

c. The man was beaten black and blue. (P)

d. She fell off her bike and hurt her leg terribly. (A)

e. The burglar was caught red-handed. (P)

f. The best student of each class received a gift from the principal. (A)

g. He was sick for a week. (A)

h. My father had a terrible toothache when he was a boy. (A)

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2. Write the correct form of the verbs in brackets in each of the following sentences. (Trang 137 sách Bài tập Tiếng Anh 8)

a. Blaise Pascal was invented the adding machine in 1642.

b. The zipper was invented by W. L. Judson in 1893.

c. Who discovered the DNA?

d. When was tuberculosis (TB) discovered?

e. Bread is made from flour and yeast.

f. The sewing machine was invented by a French named B. Thimonnier in 1830.

g. The Englishman Michael Faraday invented the dynamo in 1831.

h. The first piston engine was developed in 1690 by the French Physicist and inventor Denis Papin.

i. The British bacteriologist Sir Alexander Fleming discovered penicillin in 1982.

j. The first truly successful helicopter was designed by the German engineer Heinrich Focke.

3. Put the sentences below in the correct order to produce the instruction to cook spring-rolls or Nem. Use the sequence markers in the box to complete the instruction. (Trang 138 sách Bài tập Tiếng Anh 8)

Thứ tự đúng: d - b - a - e - f - c

First, mince the pork.

Second, cut the turnips, carrots, onions into short threads of 2 or 3 cm.

Then, add spices you like.

Next, mix up everything in a pot.

After this, wrap the mixture in rice paper to make rolls double the size of a thumb.

Finally, deep-fry the rolls until they turn yellow brown.

4. Fill in each of the gaps in the passage below with one suitable word from the box. (Trang 138-139 sách Bài tập Tiếng Anh 8)

1. designed2. linked3. brought4. came5. designed
6. put7. succeeded8. combined9. called10. used

5. Read the passage in Exercise 4 again and write true or false against these statements. (Trang 139 sách Bài tập Tiếng Anh 8)

a. Fb. Tc. Td. Te. F
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6. Write, from the following sets of words and phrases, complete sentences which together describe the process of making ice-cream. You can make all the necessary changes and additions. (Trang 139 sách Bài tập Tiếng Anh 8)

a. First, basic ingredients are poured into a tank.

b. Then they are mixed thoroughly.

c. Next, the mixture is cooled and piped in a freezing tank.

d. Then, it is beaten until it's smooth and nuts or fruits are added.

e. After this, it is packed in containers.

f. Finally, the containers are kept in a refrigerated room until they are hard.

Now write about a process of making something you know.

Frog legs are popular in many countries. Here's how to cook frog legs.

First, put some salt and pepper on the legs.

Next, brown the legs in hot butter.

Add some cooked onion slices to the legs when they are browned.

Cook the onions and legs a little longer.

Remove the legs and onions from the pan.

Then make a sauce by warming some vinegar in the butter that's left over.

Then pour the sauce over the legs and onions.

Finally, put some parsley on top.

Taste them! They are delicious.

7. Invented or was invented? Use the correct form of the verb in brackets. (Trang 140 sách Bài tập Tiếng Anh 8)

a. invented                f. was invented
b. was invented            g. was invented
c. was invented            h. was invented
d. was invented            i. invented
e. invented                j. was invented
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8. Read the list of the 20th century inventions and put the following events in the correct order of time. One item (d) has been done for you. (Trang 140-142 sách Bài tập Tiếng Anh 8)

5    a) The invention of the photocopier                 (1937)
4    b) Charles Strite's invention                       (1919)
8    c) The invention of audio cassettes                 (1962)
1    d) George Claude's invention of neon light          (1902)
11   e) Microsoft's invention                            (1985)
3    f) The invention of instant coffee                  (1909)
10   g) The invention of the laser printer               (1975)
9    h) The invention of the video cassette recorder     (1976)
2    i) The invention of the teabag                      (1904)
6    j) Percy Spencer's invention                        (1946)
7    k) The invention of super glue                      (1951)



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