欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

It seems to be strange that there is a blind spot in the eye. Here is an interesting experiment (實(shí)驗(yàn)) that can make something disappear when one eye is open.

Make a card about the size of a postcard and write two English letters "L" and "R" on it. "L" is on the left and "R" on the right. First, hold the card about 80 cm away and you can see both the letters. Then close your right eye and look at the letter "R" only with your left eye. And now, as you move the card slowly towards you, you'll find the letter "L" disappearing. But if you move the card nearer to your face, the letter will be seen again. Now do the same experiment with your left eye closed; you'll find the letter "R" disappearing.

Why do the letters disappear? It is because there is a blind spot in the eye. When the image (影像) of the letter falls on the blind spot, it won’t be seen. That’s why one of the letters disappears.

1.The writer of the passage thinks that _______ there is a blind spot in the eye.

A. few people know

B. no one knows

C. most people know

D. all the people know

2.The word "disappear" in the first paragraph means _______ .

A.消亡 B.丟失

C.消失 D.喪失

3.You fail to see the letter "L" in the experiment because _______ .

A. your eyes are poor

B. you move it close to your eye

C. its image falls on the blind spot

D. your left eye is not open

4.In which order should the experiment be done?

a. Hold the card.

b. Move the cards nearer

c. Close your right eye.

d. Write two English letters on the cards.

e. Look at the letter "R".

f. Make cards.

A. d. f. a. b. c. e.

B. a. c. f. d. e. b.

C. f. a. d. c. b. e.

D. f. d. a. c. e. b.

5.This passage mainly(主要)tells us _______ .

A. there is a blind spot in the eye

B. an interesting experiment

C. where the blind spot is

D. how to find the blind spot

I am very busy every day. I 1.___________(usual) get up at 6 a.m. I brush my 2._______ (tooth), wash my face, comb my hair and dress myself quickly. I have breakfast at 6:30 a.m. After breakfast I go to school 3._____ bus. My first lesson 4._________(begin) at 7:30 a.m. I have five lessons 5._____ the morning , 6._____ I never have time 7.________(do) exercise. I study hard and always help my classmates with their lessons. I have lunch in the school.

There 8._______(be) three lessons in the afternoon. The school ends at 5 p.m. After school, I always play basketball with my friends for half 9.______ hour. I get home at 6 p.m. I have dinner with my parents together. After dinner I often do my homework at once. Then I read newspapers or surf the Internet. In the end, I go to bed at 10 p.m. usuall10..

假如你是剛踏入中學(xué)校門(mén)的學(xué)生Anne，請(qǐng)根據(jù)提示信息，寫(xiě)一封郵件給你的筆友Peter，介紹你的校園生活。80詞左右，可以適當(dāng)發(fā)揮。

提示信息：

在七年級(jí)三班學(xué)習(xí)，家里學(xué)校很近，每天步行上學(xué)。

最喜歡的科目是英語(yǔ)和地理。很喜歡校園生活。身邊有許多好朋友。老師們很友好。

擅長(zhǎng)唱歌和游泳，課后經(jīng)常參加各種各樣的活動(dòng)(activity)。

學(xué)習(xí)很努力，夢(mèng)想是當(dāng)一名老師。

Tom is 8-year-old boy.

A. a B. an

C. the D./

---Mum, is my friend, Jim.

---Nice to meet you.

that B. this

C. he D. it

-- is Judy?

---She is 1.6 meters tall.

A. How old B. How much

C. How many D. How tall

---Is this his book?

--- . It’s her book.

A. Yes, I am

B. No, it isn’t

C. Yes, it is

D. No, he isn’t

Here some oranges for you.

A. is B. am

C. be D. are

They want to have a party for Linda’s birthday.

A. six B. sixth

C. the sixth D. sixteen

--- is the black T-shirt?

---It is 58 yuan.

What B. How much

C. How many D. What color