1. —Don’t forget to protect your eyes well you take online classes.
—OK. Thank you, sir.

A.if
B.or
C.so
D.until

1. A 句意:——如果你上网课,别忘了保护好你的眼睛。——好的。谢谢你,老师。根据语境可知,前一分句“保护好眼睛”是后一分句“上网课”条件下的建议,应选用表示条件的连词if。

2. Most of things need air and water.
Without them, they can't stay .

A.living; live
B.alive; alive
C.living; alive
D.alive; living

2. C

3. Life is love and friendship. They give meaning to our existence(存在).

A.something with
B.nothing without
C.anything with
D.everything without

3. B 根据第二句“They give meaning to our existence.”可知,爱和友谊赋予了我们存在的意义,所以没有爱和友谊,生活就没有意义,nothing without意为“没有……就什么都不是”,符合语境。

4. (江苏扬州期末)Amy and her friends were rowing a boat we were climbing the hill.

A.as
B.if
C.while
D.when

4. C 句意:当我们爬山时,Amy 和她的朋友们正在划船。根据 were rowing a boat 和 were climbing the hill 可知,前后两个动作同时进行,且都用过去进行时,应用 while 连接。

Ⅱ. 根据汉语意思完成句子
1. 学而不思则罔。(without)
Learning is labour lost.
2. 我在空闲时花大量时间了解花卉以及照顾它们的方法。
I spend a lot of time learning about flowers and ways to them in my free time.
3. 你能教我怎么把我的相机连接到电脑上吗？(connect)
Can you teach me how to ?
4. 人类活动和气候变化正使得昆虫难以生存。(climate)
Human activities and are making it difficult for insects to live.
5. 由于低温，电池出问题了。
Something is wrong with the battery because of the .

1. without thinking
2. take care of/look after
3. connect my camera to the computer
4. climate change
5. low temperature

Ⅲ. 完形填空
(山东泰安期末)We all know that the panda is the treasure of our country. Then how about its droppings(粪便)? They are treasures too. How? The panda keeper 1 an adult panda with about 25 kilos of bamboo every day. Of the bamboo, the panda will eat about 11 kilos—the most 2 parts. Because the panda cannot digest(消化) all the bamboo completely, its droppings 3 much of undigested(未消化的) bamboo. Can people make use of it? Sure, someone 4 in turning it into toilet paper. “I think it’s a great 5,” a panda keeper says. “In the past, we just threw away the droppings 6 rubbish. But now workers come and take the droppings away. They use the droppings to make 7. They also make notebooks.”
8, the paper doesn’t sell well at the Panda Base. It is not popular with 9. Most of them won’t buy it after they visit the Panda Base. “A box of tissues(纸巾) is 43 yuan,” they said. “That’s quite 10.” If you see the tissues at the Panda Base, will you buy them?
1. A. plants B. offers C. provides
2. A. delicious B. terrible C. nervous
3. A. depend B. include C. develop
4. A. minds B. risks C. succeeds
5. A. population B. success C. object
6. A. from B. across C. like
7. A. sticks B. bamboo C. paper
8. A. Even B. Although C. However
9. A. tourists B. readers C. keepers
10. A. expensive B. amazing C. fantastic

【语篇导读】本文向我们介绍了熊猫粪便的用途。
1. C provide sb with sth 意为“向某人提供某物”,为固定用法。
2. A 根据上文提到熊猫饲养员提供大约25千克竹子及“the panda will eat about 11 kilos”可知,熊猫只吃竹子最美味的部分。
3. B 根据“Because the panda cannot digest all the bamboo completely, its droppings...much of undigested bamboo.”可知,大熊猫粪便中含有很多未消化的竹子。
4. C succeed in doing sth 意为“成功做某事”,为固定用法,此处表示成功把粪便变成卫生纸。
5. B 根据“Sure, someone...in turning it into toilet paper.”可知,把大熊猫粪便变成卫生纸是一个巨大的成就。
6. C 根据“we just threw away the droppings...rubbish”可知,此处表示过去人们只是像扔垃圾一样扔掉粪便。
7. C 根据“the paper doesn't sell well at the Panda Base”可知,纸卖得不好,此处应表示制作成纸。
8. C 分析句子结构可知,“They use the droppings to make...They also make notebooks.”与“the paper doesn't sell well at the Panda Base”之间是转折关系。
9. A 根据“Most of them won't buy it after they visit the Panda Base.”可知,大多数人在参观大熊猫基地后不会买它,此处应指“游客”。
10. A 根据“A box of tissues is 43 yuan”可知,纸巾太贵了。