unit 15 we’re trying to s**e the manatees(section a)
多久一次, 常用来问频率。
表示频率的副词有always, usually, often, sometimes/ at times, seldom, hardly, never等。
短语有:once a day/ week/ month/ year...twice a day/ week/ month/ year...
three times a day / week/ month/ year...
与every开头的短语也表示频率,例如every day/ week/ month/ year..;every five minutes, every two hours等。
如:—howoftendotheyplayfootball?
他们多长时间踢一次足球?
theyplayfootballeveryday.他们天天踢足球。
常用来问长度。如:
1)问时间的长度,意为“多久”。
表示一段时间的短语有“for+一段时间”,意为“达……”如for four days(达四天); since+时间点或时间状语从句”意为“自从……以来”,如since 1968/ yesterday/ two days ago; “half + 一段时间”意为“半……”如 half an hour等。
如: howlongdidhelivehere?他在这里住了多久?
forabouttwentyyears.大约二十年。
2)问物体的长度,意为“多长”。使用时要注意与how far 的区别。 how far强调某两个地点之间的距离,在疑问句中一般会出现两个地点。
how long 提问单个事物本身的长度,与距离无关。如:
howlongistheboat?这条船有多长?
it’smorethantenmeterslong.有十多米长。
多远,常用来问两地之间的距离。表示两地间距离的距离的短语常见的有five kilometers, a few miles, ten minutes’ walk, three hours’ ride等。如:
howfaristhepostofficefromhere?
邮局离这儿有多远?
it’saboutthreekilometers(away).大约三公里。
常用来问价钱。相当于“what’s the price of sth.?”what are the prices of sth.?”如:
howmuchisyournewbike?
你的新自行车多少钱?
about500yuan.大约500元。
常用来问数量。如:
1)“howmany+可数名词的复数形式”询问可数名词的数量。如:
howmanystudentsarethereinyourclass?
你们班有多少学生?
sixty.六十个。
2)“howmuch+不可数名词”询问不可数名词的数量。如:
howmuchmeatisthereinthefridge?
冰箱里有多少肉?
onlyalittle.只有一点。
常用来问年龄。如:
howoldisyourchineseteacher?
你们的语文老师多大岁数?
he’saboutthirty.大约三十岁。
多久以后,对“in+一段时间”提问,意为“……之后(内)”,表示从现在到将来动作发生时为止的一段时间,常与一般将来时态连用。 如in some weeks(数周后)。如:
howsoonwillyourmothercomeback?
你母亲还有多久将回来?
she’llcomebackintwodays.她两天后回来。
常用来问意见。如:
howaboutgoingshoppingnow?
现在去购物怎么样?
ok.好的。
do you visit your grandparents?
---twice a month.
a. how often b. how long
c. how soon d. how far
- can you tell me usually play football?
- once a week.
a. how soon b. how long
b. c. how often d. how far
- is the moon away from the earth?
- it’s about 383,000 kilometers.
a. how long b. how soon
c. how often d. how far
- kate, do you know it is from here to the gym?
- about twenty minutes’ walk.
h**e you been learning english?
- i h**e been learning english for six years.
a. how long b. how often
c. how soon d. how far
- will it takes you from your school to the library?
- about half an hour. so i’ll be there by 9 o’clock.
a. how far b. how soon
c. how long d. how many
- rita, your english is very good. h**e you been in china?
- since i was five.
a. how long b. how far
c. how soon d. how often
will the supper be ready? i am very hungry.
- in a minute.
a. how soon b. how long
c. how much d. how often
- can you be ready, andy?
- in ten minutes.
a. how much b. how often
c. how long d. how soon
is your new t- shirt?
- it’s only twenty yuan.
a. how much b. how many
c. how long d. how far
has your uncle been to canada?
- only twice.
a. how many times b. how often
c. how much d. how many
英语中表示长宽高深表示方法。
1. 数词+ 表示量的名词+ long/wide/high/deep../形容词)
the street is 10 meters wide.
he river is about 2 meters deep.
2. 数词- 表示量的名词(单词)- long/wide/high/deep
this is a 10-meter-wide street.
this is a 2-meter-deep river.
练习: -how amazing the noodle is!
yes, it is , and breaks the guinness world record as the longest handmade noodle.
a. 1,704-meter-long b.1,704-meters-long
c. 1,704 meter long d. 1,704 meters long
try to do, try doing
try to do “企图做,尽力做”,trydoing意为试着做。try to do的语境是挖空心思,绞尽脑汁,竭尽全力想方设法,甚至不惜付出任何代价,克服一切阻挠去做,总体感觉很吃力。 trydoing的语境显得轻松多了,后面也很少带说明成果与否的解释说明成分。
区别trytodo和trydoing:
意为企图做,尽力做;trydoing意为试着做。
的语境总体感觉很吃力;trydoing的语境显得较轻松。
后补充说明的部分表达是否成功的意思。trydoing不表达这种意思。
意思与trysth相近。
练习: -i didn’t hear you come in just now.
that’s good. we tried any noise, for you were sleeping.
a. not make b. not to make c. to make d. ******
it+ be +过去分词+ that从句。
it:形式主语, that从句才是真正的主语。
类似结构:it is hoped that...人们希望……
it is believed that...人们相信……
it is reported that...据报道……
it is said that...据说……
如: it is said that the movie star will come to our city.
discover,find,invent,findout区别。
1)discover指“发现”某种本来存在,而以前未被发现的事物或未为人所知的东西。如:
idiscovered(that)shewasagoodcook.我发现她是个烹饪好手/她很会烧菜。
2)invent指“发明”,即原来没有而后来发明创造的东西edisondidn''tdiscoverelectricity,butinventedthelightbulb.
爱迪生不是发现了电,而是发明了灯泡。
3)find强调在经过“寻找”(lookfor)后“找的结果”(找到或找不到),又可以表示“(偶然地)发现”;如:
ifoundawatchontheroad.
我在路上发现了一块手表。
ifoundmycatasleepinmybed.我发现猫睡在我的床上。
4)findout通常表示“弄明白,搞清楚,查明”。如。
theteacherwantedtofindoutwhohadbrokenthedoor.老师要找出谁砸坏了门。
against的用法。
1.表示“反对”,其反义词为for。若表示“强烈反对”,一般用副词strongly:areyoufororagainsttheplan?你对这个计划是赞成还是反对呢?
**强烈反对他访问这个国家。
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