2. 嘗試讀一讀下列句子,注意語(yǔ)音語(yǔ)調(diào)。
(1) What made the streets messy and dirty?
(2) We can put rubbish in the bin.
(3) We can plant more trees.
答案：【解析】：
這道題目要求嘗試讀一讀給出的句子，并注意語(yǔ)音語(yǔ)調(diào)。這主要考查的是對(duì)英語(yǔ)句子的閱讀能力和對(duì)語(yǔ)音語(yǔ)調(diào)的把握。由于這是英語(yǔ)語(yǔ)法時(shí)間（Grammar time）的練習(xí)，所以重點(diǎn)在于如何正確地讀出這些句子，并注意到句子中的語(yǔ)音語(yǔ)調(diào)變化，特別是疑問(wèn)句和陳述句的語(yǔ)調(diào)差異。
對(duì)于第一個(gè)句子“What made the streets messy and dirty?”，這是一個(gè)由what引導(dǎo)的特殊疑問(wèn)句，詢問(wèn)是什么導(dǎo)致街道變得臟亂。在朗讀時(shí)，要注意疑問(wèn)句的語(yǔ)調(diào)通常是上升的，特別是在“what”和句末。
第二個(gè)句子“We can put rubbish in the bin.”是一個(gè)陳述句，說(shuō)明我們可以把垃圾扔進(jìn)垃圾桶。陳述句的語(yǔ)調(diào)通常是平穩(wěn)的，沒(méi)有明顯的升降。
第三個(gè)句子“We can plant more trees.”同樣是一個(gè)陳述句，表示我們可以種更多的樹(shù)。在朗讀時(shí)，也要保持平穩(wěn)的語(yǔ)調(diào)。
【答案】：
(1) What made the streets messy and dirty? （注意疑問(wèn)句語(yǔ)調(diào)上升）
(2) We can put rubbish in the bin. （注意陳述句語(yǔ)調(diào)平穩(wěn)）
(3) We can plant more trees. （注意陳述句語(yǔ)調(diào)平穩(wěn)）
2. 對(duì)于第 61 頁(yè) Grammar time 部分中的問(wèn)句,你還能找到其他的答案嗎?把它們寫(xiě)下來(lái)。
We can collect litter when jogging in the park.
答案：We can collect litter when jogging in the park.
3. 選詞填空。
take the metro, dirty, clean, put, smoke, bin, plant more trees
(1)
Smoke
made the city
dirty
.
(2) You can
put
rubbish in the
bin
.
(3) Some students can
take the metro
to school.
(4) People can
plant more trees
to keep the air clean.
答案：【解析】：
這是一道英語(yǔ)選詞填空題，考查的是對(duì)詞匯的理解以及上下文語(yǔ)境的運(yùn)用。題目給出了幾個(gè)短語(yǔ)和單詞，包括“take the metro”，“dirty”，“clean”，“put”，“smoke”，“bin”，“plant more trees”，要求根據(jù)句子語(yǔ)境選擇合適的詞填入空白處。
(1) 第一個(gè)句子需要填入兩個(gè)詞，第一個(gè)空需要填入一個(gè)動(dòng)作或事物，第二個(gè)空需要填入一個(gè)形容詞來(lái)描述這個(gè)動(dòng)作或事物對(duì)城市的影響。根據(jù)常識(shí)和語(yǔ)境，“smoke”可以使城市變“dirty”。
(2) 第二個(gè)句子描述的是處理垃圾的行為，所以第一個(gè)空應(yīng)填“put”，表示放置，第二個(gè)空應(yīng)填“bin”，表示垃圾桶。
(3) 第三個(gè)句子描述的是學(xué)生上學(xué)的交通方式，所以應(yīng)填“take the metro”，表示乘地鐵。
(4) 第四個(gè)句子描述的是保持空氣清潔的方法，所以應(yīng)填“plant more trees”，表示多種樹(shù)。
【答案】：
(1) Smoke; dirty
(2) put; bin
(3) take the metro
(4) plant more trees
( )(1) Smoke from cars made the air dirty.
F
( )(2) Rubbish made the streets messy.
T
( )(3) The fish in the water were dead.
T
( )(4) We can take a car to school.
F
答案：FTTF
(1) Rubbish
makes
(make/made) the classroom messy.
(2) Black smoke from
factories
(factory/factories) was dirty.
(3) There
was
(was/were) a lot of rubbish in the study.
(4) What can you do
to keep
(keep/to keep) our food clean?
答案：
(1) makes
(2) factories
(3) was
(4) to keep
班會(huì)上,同學(xué)們正在進(jìn)行關(guān)于環(huán)保理念的討論:"教室是我們的家。你看,它既干凈又整潔。同學(xué)們,我們應(yīng)該用實(shí)際行動(dòng)來(lái)把這個(gè)家建設(shè)得更加美好。"我們應(yīng)該怎么做呢?
S1: What can we do to keep our classroom clean?
S2: We can
clean the desks and chairs every day
.
S3:
We can put the rubbish into the bin
答案：We can clean the desks and chairs every day.
We can put the rubbish into the bin.
