[单项选择]A) By air. C) Let’s go.
B) Yes, we will. D) We will arrive there at 10 o’clock.

[单项选择]A) By air. C) Let’s go.
B) Yes, we will. D) We will arrive there at 10 o’clock.

[单项选择]Now let us look at how we read. When we read a printed text, our eyes move across a page in short, jerky movement. We recognize words usually when our eyes are still when they fixate. Each time they fixate, we see a group of words. This is known as the recognition span or the visual span. The length of time for which the eyes stop—the duration of the fixation—varies considerably from person to person. It also varies within any one person according to his purpose in reading and his familiarity with the text. Furthermore, it can he affected by such factors as lighting and tiredness.
Unfortunately, in the past, many reading improvement courses have concentrated too much on how our eyes move across the printed page. As a result of this misleading emphasis on the purely visual aspects of reading, numerous exercises have been devised to train the eyes to see more words at one fixation. For instance, in some exercises, words are flashed on to a screenfor, say, atenthor a twentieth of a s
A. one’s familiarity with the text
B. one’s purpose in reading
C. the length of a group of words
D. lighting and tiredness

[单项选择]Can we see (1) the earth is a globe Yes, we can, when we watch a ship that sails out to sea. If we watch closely, we see that the ship begins (2) . The bottom of the ship disappears first, and then the ship seems to sink lower and lower, (3) we can only see the top of the ship, and then we see nothing at all. What is hiding the ship from us It is the earth. Stick a pin most of the way into an orange, and (4) turn the orange away from you. You will see the pin disappear, (5) a ship does on the earth.

A. if
B. where
C. that
D. when

[单项选择] How do we love tomatoes Let’’s count the ways: We love them in pasta, on pizza, in juice, in salad and soup, sliced on sandwiches, stuffed with tuna, even dried and baked in bagels, but most of all, we love them right off the vine—ripe, red, and delicious. While tomato lovers don’’t need an excuse for eating them by the bushel, now there’’s even more reason to savor these delicious fruits. Evidence is mounting that people who eat tomatoes have a substantially lower risk of cancer. In a 1,000-person study of eating habits and health, Harvard Medical School researchers found that those who ate tomatoes every week had the lowest chance of dying from cancer. Recently, a study of 48,000 American men showed a 21 to 34 percent lower risk of prostate cancer among those who consumed tomatoes, tomato sauce, or pizza more than twice a week. And in a study of men and women in Italy, eating seven or more servings of raw tomatoes a week was linked to a 30 to 60 percent reduction
A. The light red tomatoes do not contain lycopene.
B. The darker green and yellow the tomato is, the less lycopene it contains.
C. The lighter red the tomato, the less lycopene it contains.
D. Green and yellow tomatoes contain less lycopene.