You know that pearls grow inside oysters(牡蛎), but would you ever think to look for diamonds inside an ostrich(鸵鸟)? Well, a hunter once shot an ostrich and discovered, to his great surprise, that the big bird had swallowed a bunch of diamonds. How could such a strange thing happen?
Like many other birds, the ostrich swallows small stones that stay inside its “gizzard”. The gizzard is a bird’s second stomach. It is where the food is ground up. The small stones help to grind up the food so it can be digested. The small stones do the chewing because birds don’t have teeth. In that case of the ostrich with the diamonds, the bird simply had expensive taste in rocks. It used the diamonds to digest its dinner.
Diamonds and stones aren’t all that an ostrich will swallow. If there are no stones around, it will eat just about anything. Sadly for ostriches in zoos, this can be a fatal habit. The tendency to swallow anything it sees has caused the death of many an ostrich. Cruel or careless people often throw things into the bird’s living space. They throw keys, coins, and even large objects such as horseshoes. The ostrich swallows them without hesitation. Coins can be the worst. Inside the ostrich they wear down to a razor-sharp edge. They will cut open the bird’s gizzard from the inside. When one young zoo ostrich died, 484 coins weighing more than eight pounds were found in its gizzard.
1.
Which of the following best expresses the main idea of the passage?
A. Birds often eat strange and funny things.
B. Ostriches will swallow anything to help them digest food.
C. One ostrich died with 484 coins in its gizzard.
D. Ostriches are often hurt by cruel or careless people.
2.
The ostrich is not smart enough to ______.
A. digest its own food B. eat only diamonds
C. avoid eating harmful objects D. escape from the zoo
3.
The sentence “the small stones do the chewing” makes rocks seem as though they were ______.
A. important B. alive
C. dangerous D. uncomfortable
4.
he word “fatal” in the third paragraph is another word for “______”.
A. foolish B. careless C. deadly D. cruel
高二英语阅读理解简单题
You know that pearls grow inside oysters(牡蛎), but would you ever think to look for diamonds inside an ostrich(鸵鸟)? Well, a hunter once shot an ostrich and discovered, to his great surprise, that the big bird had swallowed a bunch of diamonds. How could such a strange thing happen?
Like many other birds, the ostrich swallows small stones that stay inside its “gizzard”. The gizzard is a bird’s second stomach. It is where the food is ground up. The small stones help to grind up the food so it can be digested. The small stones do the chewing because birds don’t have teeth. In that case of the ostrich with the diamonds, the bird simply had expensive taste in rocks. It used the diamonds to digest its dinner.
Diamonds and stones aren’t all that an ostrich will swallow. If there are no stones around, it will eat just about anything. Sadly for ostriches in zoos, this can be a fatal habit. The tendency to swallow anything it sees has caused the death of many an ostrich. Cruel or careless people often throw things into the bird’s living space. They throw keys, coins, and even large objects such as horseshoes. The ostrich swallows them without hesitation. Coins can be the worst. Inside the ostrich they wear down to a razor-sharp edge. They will cut open the bird’s gizzard from the inside. When one young zoo ostrich died, 484 coins weighing more than eight pounds were found in its gizzard.
1.
Which of the following best expresses the main idea of the passage?
A. Birds often eat strange and funny things.
B. Ostriches will swallow anything to help them digest food.
C. One ostrich died with 484 coins in its gizzard.
D. Ostriches are often hurt by cruel or careless people.
2.
The ostrich is not smart enough to ______.
A. digest its own food B. eat only diamonds
C. avoid eating harmful objects D. escape from the zoo
3.
The sentence “the small stones do the chewing” makes rocks seem as though they were ______.
A. important B. alive
C. dangerous D. uncomfortable
4.
he word “fatal” in the third paragraph is another word for “______”.
A. foolish B. careless C. deadly D. cruel
高二英语阅读理解简单题查看答案及解析
I would have come earlier, but I that you were waiting for me.
A. didn't know B. hadn't known
C. would have known D. haven't known
高二英语单项填空中等难度题查看答案及解析
I would have come earlier, but I _____ that you were waiting for me.
A. didn’t know B. hadn’t know C. would have known D. haven’t known
高二英语单项填空中等难度题查看答案及解析
I would have come earlier, but I _____ that you were waiting for me.
A. didn’t know B. hadn’t know
C. would have known D. haven’t known
高二英语单项填空中等难度题查看答案及解析
Sorry, I would have come earlier, but I ______ that you were waiting.
A.didn't know B.hadn't known
C.don't know D.haven't known
高二英语单项填空中等难度题查看答案及解析
I would have come earlier, but I ________ that you were waiting for me.
A.didn’t know B.hadn’t known
C.would have known D.haven’ t known
高二英语单项填空中等难度题查看答案及解析
I would really like to share with you all something I did last month that made me feel so good inside.
I had a lot of hair, pretty much at my_______and I loved it and my friends also loved it. They were all saying how ______and thick it was. But it was heavy and was always getting ______. I’d put my dishes in the dishwasher and my hair would fall over my shoulders and _____in last night’s dinner.
Anyway, I wanted to get a fair amount_______ , because I thought it was time. I was talking to my friends about it and one of them_______that her older sister used to have really long hair mine, and she donated over half of it to a ________ This sparked a(n) ______in me so I started looking at different charities______ . I came across the AAAF website, and _______this was something I really wanted to do. So I booked (n)______with a hairdresser and went to have 35cm of my hair chopped off.
I put my hair in a(n) ______and sent it off, feeling _____ that I could change someone else’s life. the hair I was sending off would be made _______a wig(假发)for a child who has lost her hair ____cancer. I wasn’t_______anything back. I was just ______to be doing this small thing for someone else. ______last week I received a letter in the post thanking me for my ______of hair and letting me know just how much they appreciated the______ .
1.A. head B. neck C. shoulder D. waist
2.A. nice B. hot C. heavy D. warm
3.A. on the way B. by the way C. in the way D. across the way
4.A. land B. wash C. live D. wait
5.A. made up B. cut off C. left out D. put out
6.A. recommended B. warned C. judged D. mentioned
7.A. shop B. charity C. company D. neighborhood
8.A. lesson B. excuse C. interest D. reason
9.A. really B. online C. suddenly D. angrily
10.A. decided B. doubted C. allowed D. guessed
11.A. development B. introduction C. appointment D. construction
12.A. pocket B. envelope C. letter D. book
13.A. great B. guilty C. pitiful D. selfish
14.A. from B. out C. of D. into
15.A. by means of B. as for C. as well as D. due to
16.A. expecting B. accepting C. paying D. confirming
17.A. indifferent B. unworthy C. shocked D. pleased
18.A. When B. So C. But D. And
19.A. distribution B. contribution C. discussion D. celebration
20.A. pleasure B. application C. gesture D. reward
高二英语完形填空简单题查看答案及解析
Have you ever wondered why the roots of the plants always know which way to grow—into the soil but not above it? Some British scientists have recently solved this mystery.
It turns out that roots have special hairs that tie them into the soil and help them grow their way past obstacles, a team at the John Inners Center in Norwich reports in the February 29 issue of Journal Science.
“The key is in the fuzzy(有绒毛的)coat of hairs on the roots of plants,” says professor Liam Dolan. “We have found a growth control system that enables these hairs to find their way and to become longer when their path is clear.”
Root hairs explore the soil in much the same way a person would feel their way in the dark. If they come across an obstacle, they make their way around until they can continue growing in an opening. In the meantime, the plant is held in place as the hairs grip(紧紧抓住)the soil.
The hairs are guided by a clever chemical trick. A protein(蛋白质) at the tip of the root hairs called RHD2 helps them to take calcium(钙) from the soil. Calcium makes the hairs grow, and produce more RHD2, and take more calcium.
But when an obstacle blocks the hair’s path, or the hair reaches the surface of the soil, the cycle is broken and growth starts in another direction.
This system gives plants the flexibility to explore a complex environment and to live in even the most unpromising soils, says Dolan.
In poor soils such as in parts of Australia and Africa, native plants have adapted by producing enormous numbers of root hairs. A better understanding of this adaptation will allow scientists to develop hairy rooted crops that can grow in unfriendly environments.
According to Dolan, “Research in the John Inners Center is taking a breeding approach to increase hair length in wheat but it will be some time before new cultivars(栽培变种) are developed.”
1.The passage is mainly about _______.
A.why the roots of plants grow into the soil but not above it |
B.how the roots of plants grow into the soil but not above it |
C.the process of plants growth |
D.a growth control system of plants |
2.How does the circle work?
A.RHD2 takes calcium from the soil, which makes hairs grow, and produce RHD2 and take more calcium |
B.Roots take RHD2 and calcium from the soil and produce RHD2 |
C.Roots make hairs grow, and produce RHD2, and take more calcium |
D.RHD2 takes protein, which makes hairs grow, and produce RHD2, and take more calcium |
3.We can infer from the last paragraph that ________.
A.hairy rooted crops can grow better in unfriendly environments |
B.a new cultivar of wheat with long hair has been developed by scientists |
C.a new cultivar of wheat with long hair is still on test |
D.the roots of plants always know which way to grow |
高二英语阅读理解困难题查看答案及解析
Visitor Oyster cards are electronic smartcards that come fully charged with credit. Whether you’re making a one-off trip to London or you’re a regular visitor, using an Oyster travel smartcard is the easiest way to travel around the city’s public transport network. Simply touch the card on the yellow card reader at the doors when you start and end your journey.
Advantages of a Visitor Oyster Card
A Visitor Oyster card is one of the cheapest ways to pay for single journeys on the bus, Tube, DLR, tram, London Overground and most National Rail services in London:
● Save time—your card is ready to use as soon as you arrive in London.
● It’s more than 50% cheaper than buying a paper travel card or single tickets with cash.
● There is a daily price cap—once you have reached this limit, you won’t pay any more.
● Enjoy special offers and promotions at leading London restaurants, shops and entertainment venues—plus discounts on the Emirates Air Line cable car and Thames Clippers river buses.
Buy a Visitor Oyster card
Buy a Visitor Oyster card before you visit London and get it delivered to your home address. A card costs £3 (non-refundable) plus postage. Order online and arrive with your Oyster in hand! You can also buy a Visitor Oyster card from Gatwick Express ticket offices at Gatwick Airport Station and on board Eurostar trains travelling to London.
Add Credit to Your Visitor Oyster Card
You can choose how much credit to add to your card. If you are visiting London for two days, you can start with £20 credit. If you run out of credit, add credit at the following locations:
● Touch screen ticket machines in Tube, DLR, London Overground and some National Rail stations.
● Around 4,000 Oyster Ticket Stops found in newsagents and small shops across London.
● TFL Visitor and Travel Information Centers.
● Tube and London Overground station ticket offices.
● Emirates Air Line terminals.
1.When can you use your Visitor Oyster Card?
A. After you become a regular visitor.
B. Only when you end your journey.
C. Once you arrive in London.
D. Before you leave home.
2.What can we learn about the Visitor Oyster card?
A. It can reach you before your journey to London.
B. It requires you to pay as much as the daily price cap.
C. It can provide you a 50% discount at a London shop.
D. It can be delivered to your home address free of charge.
3.Where can you add credit to your Visitor Oyster card?
A. On the Internet.
B. At a Tube station ticket office.
C. On Eurostar trains.
D. At Gatwick Express ticket offices.
高二英语阅读理解中等难度题查看答案及解析
You know how wonderful you are, and you know that others know how wonderful you are, but what do you do when admiration crosses over the line into jealousy? For most teens there will come a day when you realize that one of your friends is jealous and that this jealousy is hurting your friendship. When this happens it can seem like there is nothing that you can do, but the good news is that there is. Don’t let jealousy spoil your relationships. Tackle it head on and you might be back to normal much sooner than you think.
It can be hard to walk up to a friend and ask them what the problem is, but if you want to save your friendship you’ll have to do just that. Don’t approach them and ask why they are jealous of you (unless of course you want to appear totally conceited), just take some time alone with them and let them know that you’ve been feeling like there’s been something coming between you. If they refuse to respond, then use the opportunity to explain how you have been feeling. Chances are that something you say will strike a nerve and your friend will open up as well.
When you figure out what is annoying your friend, ask him or her what (s)he thinks would make the situation better. If, for example, (s)he says that (s)he feels like (s)he doesn’t get to spend any time with you because of your being off with your new friends from the swim team then maybe you could invite her along the next time or block off one day a week for just the two of you. Remember, though, that whatever solution you decide on should be a compromise. Don’t limit your own talents or opportunities simply because your friend is unhappy. Try instead to include him or her in your new life and see how that works out.
Even the best of friendships can be tinged by jealousy. This destructive emotion is rarely productive and can turn best friends into worst enemies. Before taking extreme action, chat with your jealous friend to see if the two of you can work out a compromise. If you can’t, be prepared to know exactly how far you will go to keep your friend and how far you won’t.
1.According to the author, the jealousy emotion is________.
A. normal B. destructive
C. productive D. extreme
2.Which of the following is NOT mentioned as a way to confront your friend when jealousy happens?
A. Spending some time with him/her and letting him/her know you think there’s something between you.
B. Spending some time with him/her and letting him/her know how you feel.
C. Walking up to him/her and asking him/her what the problem is.
D. Walking up to him/her and asking him/her why he/she is jealous of you.
3.The underlined “it” in the first paragraph refers to________.
A. friendship B. relationship
C. jealousy D. admiration
4.What can be inferred from the last two paragraphs?
A. Jealousy can turn best friends into worst enemies.
B. There’s always a solution to solve the problem of jealousy.
C. You should go a long way with your friend to work out a solution
D. You may lose a friend to keep your own gifts, chances or self development.
5.The purpose of the passage is________.
A. to explain what causes jealousy
B. to offer some advice on making friends
C. to introduce the way to cope with a jealous friend
D. to explain how destructive the jealous emotion is
高二英语阅读理解中等难度题查看答案及解析