I Read and remember the key new words and expressions in Unit 6.
concert, dentist, enemy, eyesight, lifestyle, pressure, quarrel, recovery, risk, ...

I have remembered the following key new words and expressions: concert, dentist, enemy, eyesight, lifestyle, pressure, quarrel, recovery, risk.

本题是记忆单词题，无需解题步骤，直接呈现

Ⅱ.Write the words in the right forms according to the requirements.
1. enemy (复数) 2. cheerful (动词)
3. silence (形容词) 4. quarrel (现在分词)
5. stress (同义词) 6. music (形容词)
7. cancel (过去式) 8. regularly (形容词)
9. public (反义词) 10. if (同义词)

1. enemies
2. cheer
3. silent
4. quarrelling
5. pressure
6. musical
7. cancelled
8. regular
9. private
10. whether

1. "enemy"的复数形式是去y变i加es，即enemies。
2. "cheerful"的动词形式是"cheer"。
3. "silence"的形容词形式是"silent"。
4. "quarrel"的现在分词形式是双写l加ing， 即quarrelling。
5. "stress"的同义词可以是"pressure"。
6. "music"的形容词形式是"musical"。
7. "cancel"的过去式是"cancelled"。
8. "regularly"的形容词形式是"regular"。
9. "public"的反义词可以是"private"。
10. "if"的同义词可以是"whether"。

Ⅲ.Complete the sentences with the right forms of the words.
1. Our teacher taught us (conduct) an experiment yesterday. It was very interesting.
2. — What kind of (music) instrument are you going to learn?
— I’m going to learn to play the guitar.
3. The whole family were very (cheer) about moving into their new flat in the centre of the city.
4. As an excellent computer programmer, you must be able to work under (press).
5. In the end, the meeting (cancel) because the manager had to go to Shanghai at once.

1. to conduct 2. musical 3. cheerful 4. pressure 5. was cancelled

1. "teach sb. to do sth."为固定搭配，意为“教某人做某事”，故填to conduct。
2. 修饰名词instrument需用形容词，music的形容词形式为musical，故填musical。
3. be动词后接形容词作表语，cheer的形容词形式为cheerful，故填cheerful。
4. under为介词，后接名词，press的名词形式为pressure，故填pressure。
5. 主语the meeting与cancel之间为被动关系，且由had to可知时态为一般过去时，故填was cancelled。

Ⅳ.Idioms.
An idiom is a group of words in current usage having a meaning that is not deducible from those of the individual words. For example, rain cats and dogs (meaning “rain very heavily”) is an idiom; and over the moon (meaning “extremely happy”) is another idiom. So idioms are phrases or sayings that mean something different from what the words actually say. Idioms cannot be translated literally. Context clues and the words around the idiom can help a reader figure out what it means.
Read the sentences below. Think about each situation. Underline the words that give a clue to what each idiom in bold means. Then circle the letter of the meaning of the idiom.
1. — I think we should pay more attention to the old people who live alone.
— We both sing the same songs. Let’s try our best to help them together.
A. like singing pop songs
B. make the best children
C. have the same ideas
D. take an interest in music
2. Many volunteers are helping in the South Asia Expo. They are making the dust fly without getting pay.
A. hard-working
B. cleaning the street
C. flying the dust
D. lazy
3. Once I went to a famous university, but the untidy campus left a bad taste in my mouth.
A. made me happy
B. gave me a bad impression
C. made me hungry
D. made me surprised
4. He promised to give me a hand, but he broke his word.
A. couldn’t understand the words
B. didn’t say anything
C. didn’t help me
D. mustn’t talk any more
5. The boss asked him to finish the work alone but he couldn’t. There were butterflies in his stomach.
A. He was excited.
B. He was happy.
C. He was anxious.
D. He was brave.
6. Never pull his leg. He is a man without a sense of humor. He takes everything seriously.
A. draw his leg
B. play a joke on him
C. make fun of his leg
D. play games with him
7. — I want to go swimming this afternoon, Mum.
— I’m sure your father will give you the green light. He often says you should exercise more.
A. agree
B. angry
C. argue
D. annoyed
8. You will be in hot water if you continue to be late for work.
A. in bed
B. in dark
C. in trouble
D. in hospital
9. When a child realises he should stand on his own feet, he has grown up.
A. depend on himself
B. stand up quickly
C. go somewhere on foot
D. get up by himself
10. — All work must be done by Monday.
— Oh, sir, when pigs will fly? Except two more.
A. It’s OK.
B. It’s possible.
C. It’s impossible.
D. It’s a good idea.
11. I am a bit under the weather today, so I can’t go to school. I need to take some medicine and have a rest at home.
A. I am not feeling well today.
B. It’s sunny today.
C. It’s cold today.
D. I am well today.
12. Tom is keeping an eye on his sister. His parents are not at home.
A. looking
B. looking at
C. looking after
D. looking for
13. — It’s my turn to give a speech. I feel my heart is in my mouth.
— Take it easy. We’re all behind you.
A. excited
B. dangerous
C. nervous
D. serious
14. — The car is wonderful. Do you like it?
— Yes, but it costs an arm and a leg and I haven’t enough money with me.
A. It’s too big for me.
B. It’s very cheap.
C. It doesn’t fit me.
D. It’s too expensive.
15. Stop watching TV. We have bigger fish to fry.
A. need to fry some food
B. need to cook some food
C. have no idea
D. need to do something more important

1. C
2. A
3. B
4. C
5. C
6. B
7. A
8. C
9. A
10. C
11. A
12. C
13. C
14. D
15. D

1. 句子中提到“pay more attention to the old people who live alone”和“try our best to help them together”，说明两人意见一致，选择“have the same ideas”。
2. 句子描述志愿者无偿工作，“making the dust fly”是习惯用语，表示努力工作，选择“hard-working”。
3. “left a bad taste in my mouth”指留下不好的印象，选择“gave me a bad impression”。
4. “broke his word”指违背诺言，选择“didn’t help me”（与承诺相悖的行为）。
5. “butterflies in his stomach”是焦虑的表现，选择“He was anxious”。
6. “pull his leg”指开玩笑，选择“play a joke on him”。
7. “give you the green light”表示同意，选择“agree”。
8. “in hot water”指陷入麻烦，选择“in trouble”。
9. “stand on his own feet”表示独立，选择“depend on himself”。
10. “when pigs will fly”指不可能发生，选择“It’s impossible”。
11. “under the weather”表示身体不适，选择“I am not feeling well today”。
12. “keeping an eye on”指照看，选择“looking after”。
13. “heart is in my mouth”形容紧张，选择“nervous”。
14. “costs an arm and a leg”指价格昂贵，选择“It’s too expensive”。
15. “bigger fish to fry”指有更重要的事，选择“need to do something more important”。